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Journal articles on the topic 'Perovskites, photoluminescence spectroscopy'

Author: Grafiati

Published: 10 March 2023

Last updated: 31 July 2025

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1

Perez Franco, Jorge A., Antonieta García Murillo, Felipe de J. Carrillo Romo, Issis C. Romero Ibarra, and Arturo Cervantes Tobón. "Identifying Crystal Structure of Halides of Strontium and Barium Perovskite Compounds with EXPO2014 Software." Materials 18, no. 1 (2024): 58. https://doi.org/10.3390/ma18010058.

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The synthesis of ethylamine-based perovskites has emerged to attempt to replace the lead in lead-based perovskites for the alkaline earth elements barium and strontium, introducing chloride halide to prepare the perovskites in solar cell technology. X-ray diffraction studies were conducted, and EXPO2014 software was utilized to resolve the structure. Chemical characterization was performed using Fourier transform infrared spectroscopy, photophysical properties were analyzed through ultraviolet–visible spectroscopy, and photoluminescence properties were determined to confirm the perovskite char

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2

Rakshit, Soumyadipta, Alicia Maldonado Medina, Luis Lezama, Boiko Cohen, and Abderrazzak Douhal. "The Effects of Mono- and Bivalent Linear Alkyl Interlayer Spacers on the Photobehavior of Mn(II)-Based Perovskites." International Journal of Molecular Sciences 24, no. 4 (2023): 3280. http://dx.doi.org/10.3390/ijms24043280.

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Mn(II)-based perovskite materials are being intensively explored for lighting applications; understanding the role of ligands regarding their photobehavior is fundamental for their development. Herein, we report on two Mn (II) bromide perovskites using monovalent (perovskite 1, P1) and bivalent (perovskite 2, P2) alkyl interlayer spacers. The perovskites were characterized with powder X-ray diffraction (PXRD), electron spin paramagnetic resonance (EPR), steady-state, and time-resolved emission spectroscopy. The EPR experiments suggest octahedral coordination in P1 and tetrahedral coordination

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Handa, Taketo, Takumi Yamada, and Yoshihiko Kanemitsu. "Review—Photoluminescence Characterization of Halide Perovskite Materials and Solar Cells." ECS Journal of Solid State Science and Technology 12, no. 5 (2023): 056004. http://dx.doi.org/10.1149/2162-8777/acd660.

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Photoluminescence spectroscopy is a powerful technique for investigating carrier dynamics in semiconductor materials and photovoltaic devices. In this short review, we present our recent luminescence spectroscopic studies on halide perovskites, including thin films and solar cell devices, and discuss their photocarrier dynamics with relevance to photovoltaic performance.

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4

Dar, M. Ibrahim, Gwénolé Jacopin, Simone Meloni, et al. "Origin of unusual bandgap shift and dual emission in organic-inorganic lead halide perovskites." Science Advances 2, no. 10 (2016): e1601156. http://dx.doi.org/10.1126/sciadv.1601156.

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Emission characteristics of metal halide perovskites play a key role in the current widespread investigations into their potential uses in optoelectronics and photonics. However, a fundamental understanding of the molecular origin of the unusual blueshift of the bandgap and dual emission in perovskites is still lacking. In this direction, we investigated the extraordinary photoluminescence behavior of three representatives of this important class of photonic materials, that is, CH3NH3PbI3, CH3NH3PbBr3, and CH(NH2)2PbBr3, which emerged from our thorough studies of the effects of temperature on

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5

Miruschenko M. D., Timkina I. A., Nautran V. R., et al. "Optical Properties of Lead-Free Cs-=SUB=-2-=/SUB=-AgInCl-=SUB=-6-=/SUB=- : Bi/SiO-=SUB=-2-=/SUB=- Nanocrystals with Double Perovskite Crystal Structure." Optics and Spectroscopy 130, no. 8 (2022): 1021. http://dx.doi.org/10.21883/eos.2022.08.54776.3748-22.

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The optical characteristics of lead-free nanocrystals with a crystal structure of the double perovskite type with the chemical composition Cs2AgInCl6, doped with bismuth and coated with silicon dioxide were studied, and the possibility of their further application was shown. The optical properties of the nanocrystals under study are analyzed by absorption and luminescence spectroscopy, including those with time resolution. Images were obtained using a scanning electron microscope. The influence of the amount of silicon dioxide precursor addition on the optical properties and morphology of lead

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6

Valverde-Chávez, David A., Esteban Rojas-Gatjens, Jacob Williamson, et al. "Nonlinear photocarrier dynamics and the role of shallow traps in mixed-halide mixed-cation hybrid perovskites." Journal of Materials Chemistry C 9, no. 26 (2021): 8204–12. http://dx.doi.org/10.1039/d1tc01492g.

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We examine the role of surface passivation on carrier trapping and nonlinear recombination dynamics in hybrid metal-halide perovskites by means of excitation correlation photoluminescence (ECPL) spectroscopy.

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7

Hu, Dezhong, Zhen Zhang, Kaixuan Zhang, Qian He, and Weijie Zhao. "Broadband photoluminescence and nonlinear chiroptical properties in chiral 2D halide perovskites." Journal of Semiconductors 46, no. 7 (2025): 072102. https://doi.org/10.1088/1674-4926/24110034.

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Abstract Two-dimensional (2D) chiral halide perovskites (CHPs) have attracted broad interest due to their distinct spin-dependent properties and promising applications in chiroptics and spintronics. Here, we report a new type of 2D CHP single crystals, namely R/S-3BrMBA2PbBr4. The chirality of the as-prepared samples is confirmed by exploiting circular dichroism spectroscopy, indicating a successful chirality transfer from chiral organic cations to their inorganic perovskite sublattices. Furthermore, we observed bright photoluminescence spanning from 380 to 750 nm in R/S-3BrMBA2PbBr4 crystals

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8

Ruan, Shuai, Maciej-Adam Surmiak, Yinlan Ruan, et al. "Light induced degradation in mixed-halide perovskites." Journal of Materials Chemistry C 7, no. 30 (2019): 9326–34. http://dx.doi.org/10.1039/c9tc02635e.

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9

Kumar, Saranya, and Malathi Murugesan. "Lead-Free and Stable Potassium Titanium Halide Perovskites: Synthesis, Characterization and Solar Cell Simulation." Energies 15, no. 19 (2022): 6963. http://dx.doi.org/10.3390/en15196963.

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Titanium based double perovskites have shown good optical properties along with remarkable stability, making them promising lead-free perovskites for optoelectronic applications. In this work, Potassium Titanium Halide (K2TiBr6, K2TiI6 and K2TiI2Br4) double perovskites are synthesized for the first time. Surface topology and chemical composition are studied. Photoluminescence characterization shows a peak in the UV region. The perovskites exhibit quasi bandgap with K2TiI6 having 1.62 eV direct bandgap, conducive for single junction solar cell fabrication. K2TiBr6 and K2TiI2Br4 have bandgaps 2.

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10

Liu, Li, Yao, et al. "Synthesis, Structure and Photoluminescence Properties of 2D Organic–Inorganic Hybrid Perovskites." Applied Sciences 9, no. 23 (2019): 5211. http://dx.doi.org/10.3390/app9235211.

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Two-dimensional (2D) layered hybrid organic–inorganic perovskites have potential applications in solar cells, electroluminescent devices and radiation detection because of their unique optoelectronic properties. In this paper, four 2D layered hybrid organic–inorganic halide perovskites of (C6H5CH2NH3)2PbCl4, (C6H5CH2NH3)2PbBr4, (C6H5CH2NH3)2PbI4 and (C4H9NH3)2PbBr4 were synthesized by solvent evaporation. Their crystal structure and surface morphology were studied. The effects of different halogens and organic amines on perovskites’ absorption spectra were investigated, and the photoluminescen

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11

Yamada, Takumi, Kenichi Cho, Ryota Sato, Masaki Saruyama, Toshiharu Teranishi, and Yoshihiko Kanemitsu. "Photoluminescence Properties of Lead Halide Perovskite Nanocrystals Revealed By Single-Dot Spectroscopy." ECS Meeting Abstracts MA2024-02, no. 51 (2024): 3555. https://doi.org/10.1149/ma2024-02513555mtgabs.

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Lead halide perovskites have attracted much attention as a new class of optoelectronic device materials because of their outstanding optical, electronic, and transport properties [1,2]. In addition, halide perovskite nanocrystals (NCs), which can be synthesized by simple chemical methods, show near unity photoluminescence (PL) quantum yields, with keeping the superior optoelectronic properties of their bulk counterparts [3,4]. Because of the small orbital degeneracy of the band edge, PL properties of halide perovskite NCs are governed by the formation and recombination dynamics of excitons, tr

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12

Yang, Zhe, Renlong Zhu, Xiaoxuan Zheng, Quanbing Pei, Junjun Tan, and Shuji Ye. "Formation of multiple quantum wells m 2D/3D perovskite heterostructures invalidates phonon bottleneck effect." Chinese Journal of Chemical Physics 36, no. 6 (2023): 631–38. http://dx.doi.org/10.1063/1674-0068/cjcp2310098.

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The importance of the phonon bottleneck effect on the optoelectronic properties of organic-inorganic hybrid perovskites (OIHPs) has been well documented. While randomly distributed multiple quantum wells (MQWs) are frequently generated in 2D/3D perovskite heterostructures, the influence of MQWs formation in 2D/3D perovskite heterostructures on the phonon bottleneck effect is poorly understood. In this study, we construct 2D/3D perovskite heterostructures using 2D OIHP (NH3(CH2)8NH3PbI4, OdAPbI4) to passivate 3D OIHP (FAPbI3) and investigate their excitons and carrier dynamics by employing phot

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13

Ghosh, Supriya, Bapi Pradhan, Yiyue Zhang, Johan Hofkens, Khadga J. Karki, and Arnulf Materny. "Nature of the different emissive states and strong exciton–phonon couplings in quasi-two-dimensional perovskites derived from phase-modulated two-photon micro-photoluminescence spectroscopy." Physical Chemistry Chemical Physics 23, no. 6 (2021): 3983–92. http://dx.doi.org/10.1039/d0cp05538g.

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14

Sekerbayev, Kairolla, Yerzhan Taurbayev, Gauhar Mussabek, et al. "Size-Dependent Phonon-Assisted Anti-Stokes Photoluminescence in Nanocrystals of Organometal Perovskites." Nanomaterials 12, no. 18 (2022): 3184. http://dx.doi.org/10.3390/nano12183184.

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Anti-Stokes photoluminescence (ASPL), which is an up-conversion phonon-assisted process of the radiative recombination of photoexcited charge carriers, was investigated in methylammonium lead bromide (MALB) perovskite nanocrystals (NCs) with mean sizes that varied from about 6 to 120 nm. The structure properties of the MALB NCs were investigated by means of the scanning and transmission electron microscopy, X-ray diffraction and Raman spectroscopy. ASPL spectra of MALB NCs were measured under near-resonant laser excitation with a photon energy of 2.33 eV and they were compared with the results

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15

Sotelo-Lerma, Merida, Leunam Fernandez-Izquierdo, Martin A. Ruiz-Molina, Igor Borges-Doren, Ross Haroldson, and Manuel Quevedo-Lopez. "CsPbBr3 and Cs2AgBiBr6 Composite Thick Films with Potential Photodetector Applications." Materials 17, no. 20 (2024): 5123. http://dx.doi.org/10.3390/ma17205123.

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This paper investigates the optoelectronic properties of CsPbBr3, a lead-based perovskite, and Cs2AgBiBr6, a lead-free double perovskite, in composite thick films synthesized using mechanochemical and hot press methods, with poly(butyl methacrylate) as the matrix. Comprehensive characterization was conducted, including X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), UV–visible spectroscopy (UV–Vis), and photoluminescence (PL). Results indicate that the polymer matrix does not significantly impact the crystalline structure of the perovskites but has a direct imp

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16

Hoeksma, Merk M., та René M. Williams. "Synergistic Zinc(II) and Formate Doping of Perovskites: Thermal Phase Stabilization of α-FAPbI3 and Enhanced Photoluminescence Lifetime of FA0.8MA0.2PbI3 up to 3.7 µs". Molecules 29, № 2 (2024): 516. http://dx.doi.org/10.3390/molecules29020516.

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Adding zinc (II) cations and formate anions improves the thermal phase stability of α-FAPbI3 materials, and the spin-coated thin films of such doped FAPbI3 (produced using MACl) show an increased emission lifetime of up to 3.7 μs on quartz (for FA0.8MA0.2PbI3). This work investigates the effects of zinc and formate on the phase stability and time-resolved photoluminescence of FAPbI3 perovskites for solar cell applications. Perovskite samples with varying concentrations of zinc and formate were made by incorporating different amounts of zinc formate and zinc iodide and were characterized with X

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17

Kanemitsu, Yoshihiko. "(Invited) Photophysics of Halide Perovskite Semiconductors for Solar Cells." ECS Meeting Abstracts MA2025-01, no. 16 (2025): 1173. https://doi.org/10.1149/ma2025-01161173mtgabs.

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ABX3-type halide perovskites are exceptional semiconductors for solar cell devices due to their excellent properties and ease of fabrication using low-temperature chemical solution processes. They exhibit high photoluminescence (PL) quantum efficiencies and long carrier lifetimes, even at room temperature. This talk discusses the optical and electronic properties of halide perovskites as solar cell materials, summarizing our group’s research on the photophysics of halide perovskites. We prepared single crystals of lead halide perovskites and studied their electronic band structure using nonlin

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18

Wang, Xiaoting, Fangfang You, Jianping Huang, Yi Yao, and Faqiang Xu. "Effect of Carrier Gas Flow Rate on the Morphology and Luminescence Properties of CsPbBr3 Microcrystals." Crystals 12, no. 4 (2022): 479. http://dx.doi.org/10.3390/cryst12040479.

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All-inorganic halide perovskites, especially lead perovskite microcrystals, have attracted more and more attention because of their excellent photoelectric properties and chemical stability. Herein, high quality CsPbBr3 microcrystals with three different stable morphologies, namely microplate, frustum of a square pyramid and pyramid, were synthesized by the chemical vapor deposition (CVD) method through altering the flow rate of a carrier gas and were comparatively studied in structure and optical property. The photoluminescence (PL) results showed that the CsPbBr3 microplate has the best lumi

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19

Hawrami, R., L. Matei, E. Ariesanti, et al. "Growth and Performance of Perovskite Semiconductor CsPbX3 (X = Cl, Br, I, or Mixed Halide) for Detection and Imaging Applications." Materials 17, no. 21 (2024): 5360. http://dx.doi.org/10.3390/ma17215360.

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The material family halide perovskites has been critical in recent room-temperature radiation detection semiconductor research. Cesium lead bromide (CsPbBr3) is a halide perovskite that exhibits characteristics of a semiconductor that would be suitable for applications in various fields. In this paper, we report on the correlations between material purification and crystal material properties. Crystal boules of CsPbX3 (where X = Cl, Br, I, or mixed) were grown with the Bridgman growth method. We describe in great detail the fabrication techniques used to prepare sample surfaces for contact dep

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20

Lu, Xinye, Haixia Wu, Jisheng Xu, et al. "Influence of Ce3+ Doping on Photoluminescence Properties and Stability of Cs4SnBr6 Zero-Dimensional Perovskite." Coatings 14, no. 8 (2024): 945. http://dx.doi.org/10.3390/coatings14080945.

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Zero-dimensional tin-based halide perovskites have garnered considerable interest owing to their remarkable optical properties, including broad-band emission, high photoluminescence (PL) efficiency, and low self-absorption. Nevertheless, enhancing the PL efficiency and stability of these materials remains a pressing challenge. In this study, the enhancement of PL and stability in Cs4SnBr6 zero-dimensional perovskite was investigated through Ce3+ doping. Our experimental results demonstrate that the incorporation of Ce3+ can significantly boost the light emission intensity from self-trapped exc

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Singh, Aditya Narayan, Atanu Jana, Manickam Selvaraj, Mohammed A. Assiri, Sua Yun та Kyung-Wan Nam. "Achieving Order in Disorder: Stabilizing Red Light-Emitting α-Phase Formamidinium Lead Iodide". Nanomaterials 13, № 23 (2023): 3049. http://dx.doi.org/10.3390/nano13233049.

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While formamidinium lead iodide (FAPbI3) halide perovskite (HP) exhibits improved thermal stability and a wide band gap, its practical applicability is chained due to its room temperature phase transition from pure black (α-phase) to a non-perovskite yellow (δ-phase) when exposed to humidity. This phase transition is due to the fragile ionic bonding between the cationic and anionic parts of HPs during their formation. Herein, we report the synthesis of water-stable, red-light-emitting α-phase FAPbI3 nanocrystals (NCs) using five different amines to overcome these intrinsic phase instabilities.

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Kojić, Vedran, Mario Bohač, Arijeta Bafti, et al. "Formamidinium Lead Iodide Perovskite Films with Polyvinylpyrrolidone Additive for Active Layer in Perovskite Solar Cells, Enhanced Stability and Electrical Conductivity." Materials 14, no. 16 (2021): 4594. http://dx.doi.org/10.3390/ma14164594.

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In this paper, we studied the influence of polyvinylpyrrolidone (PVP) as a stabilization additive on optical and electrical properties of perovskite formamidinium lead iodide (FAPI) polycrystalline thin films on ZnO nanorods (ZNR). FAPI (as an active layer) was deposited from a single solution on ZNR (low temperature processed electron transport layer) using a one-step method with the inclusion of an anti-solvent. The role of PVP in the formation of the active layer was investigated by scanning electron microscopy and contact angle measurements to observe the effect on morphology, while X-ray

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Merdasa, Aboma, Marina Gerhard, Boris Louis, et al. "Non-radiative processes in metal halide perovskite semiconductors probed by photoluminescence microscopy." EPJ Web of Conferences 190 (2018): 02011. http://dx.doi.org/10.1051/epjconf/201819002011.

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Organo metal halide perovskites are solution processed semiconductors that recently attracted a great attention. They possess a rather “soft” and (photo) chemically active solid structure allowing for ion migration and other mass diffusion processes. This is a likely reason why non-radiative recombination centres in these materials are activated and deactivated on relatively slow time-scales. This dynamics reveals as photoluminescence (PL) fluctuations (blinking) of individual microcrystals and local areas of films and allows for application of a broad range of single molecule spectroscopy met

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Jiang, Yiqun, Beiye Li, Tianxiang Zhang, Yumeng Shi, and Qing‐Hua Xu. "Photoluminescence Mechanisms of All‐Inorganic Cesium Lead Bromide Perovskites Revealed by Single Particle Spectroscopy." ChemNanoMat 6, no. 3 (2020): 327–35. http://dx.doi.org/10.1002/cnma.201900690.

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Cichocka, Nikola, Serhiy Kobyakov, Jaroslaw Kaszewski, et al. "Optical and structural properties of europium doped Y–Al–O compounds grown by microwave driven hydrothermal technique." Nanotechnology 33, no. 3 (2021): 035702. http://dx.doi.org/10.1088/1361-6528/ac2e74.

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Abstract Perovskites, garnets, monoclinic forms, and lately also oxyhydroxides doped with rare-earth ions have been drawn large attention due to their beneficial optical and photovoltaic properties. In this work, we have shown that several forms of crystals from Y–Al–O family can be synthesized using microwave driven hydrothermal technique using different pH and post-growth annealing at different temperatures. The structural and optical properties of these crystals were investigated as a function of hydrothermal crystallization conditions. For this purpose, x-ray diffraction, scanning electron

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Kranthiraja, Kakaraparthi, Sujan Aryal, Mahdi Temsal, Mohin Sharma, and Anupama B. Kaul. "Optical Property and Stability Study of CH3(CH2)3NH3)2(CH3NH3)3Pb4I13 Ruddlesden Popper 2D Perovskites for Photoabsorbers and Solar Cells and Comparison with 3D MAPbI3." Solar 2, no. 4 (2022): 385–400. http://dx.doi.org/10.3390/solar2040023.

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Three dimensional (3D) perovskite solar cells (PSCs) are a promising candidate for third-generation photovoltaics (PV) technology, which aims to produce efficient photon conversion devices to electricity using low-cost fabrication processes. Hybrid organic-inorganic perovskites for-lmed using low-cost solution processing are explored here, which have experienced a stupendous rise in power conversion efficiency (PCE) over the past decade and serve as a prime candidate for third-generation PV systems. While significant progress has been made, the inherent hygroscopic nature and stability issue o

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Huang, Zhenqiang, Wenjiang Tan, Peipei Ma, Lihe Yan, Jinhai Si, and Xun Hou. "Visualization of Hot Carrier Dynamics in a Single CsPbBr3 Perovskite Microplate Using Femtosecond Kerr-Gated Wide-Field Fluorescence Spectroscopy." Nanomaterials 13, no. 19 (2023): 2701. http://dx.doi.org/10.3390/nano13192701.

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Lead halide perovskites (LHPs) have excellent semiconductor properties. They have been used in many applications such as solar cells. Recently, the hot carrier dynamics in this type of material have received much attention as they are useful for enhancing the performance of optoelectrical devices fabricated from it. Here, we study the ultrafast hot carrier dynamics of a single CsPbBr3 microplate using femtosecond Kerr-gated wide-field fluorescence spectroscopy. The transient photoluminescence spectra have been measured under a variety of excitation fluences. The temporal evolution of bandgap r

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Nishikubo, Ryosuke, Yeon Park, and Akinori Saeki. "Inorganic Additive-Based Approach for Wide-Bandgap Perovskites and Their Crystallization Mechanism." ECS Meeting Abstracts MA2024-02, no. 19 (2024): 1739. https://doi.org/10.1149/ma2024-02191739mtgabs.

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The formation process of lead halide perovskite (LHP) is affected by various components such as composition, additive, under-layer, etc... Those components significantly change the perovskite quality such as crystallinity, defect density, and halide segregation. However, the comprehensive understanding of the correlation between process condition (composition, underlayer, and additive) and charge dynamics is still lacked. Furthermore, the crystallization dynamics with varied process condition are of significant importance to reveal the control strategy of film quality. Herein, charge carrier d

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Jiang, Shaojie, Yanan Fang, Ruipeng Li, et al. "Pressure-Induced Phase Transitions and Bandgap-Tuning Effect of Methylammonium Lead Iodide Perovskite." MRS Advances 3, no. 32 (2018): 1825–30. http://dx.doi.org/10.1557/adv.2018.154.

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ABSTRACTPressure-induced crystallographic transitions and optical behavior of MAPbI3 (MA=methylammonium) were investigated using in-situ synchrotron X-ray diffraction and laser-excited photoluminescence spectroscopy. We observed that the tetragonal phase that presents under ambient pressure transformed to a ReO3-type cubic phase at 0.3 GPa, which further converted into a putative orthorhombic structure at 2.7 GPa. The sample was finally separated into crystalline and amorphous fractions beyond 4.7 GPa. During the decompression, the phase-mixed material restored the original structure in two di

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Zhang, Wei-Feng, Hong-Mei Pan, Yue-Yu Ma, Dong-Yang Li, and Zhihong Jing. "One-dimensional corner-sharing perovskites: Syntheses, structural evolutions and tunable photoluminescence properties." Journal of Molecular Structure 1253 (April 2022): 132221. http://dx.doi.org/10.1016/j.molstruc.2021.132221.

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Perrin, Lara, Seigo Ito, Ryuki Tsuji, Lionel Flandin, and Emilie Planes. "Carbon-Based Perovskite Solar Cells: Interface Engineering of 5-AVAI Additive." ECS Meeting Abstracts MA2024-02, no. 19 (2024): 1732. https://doi.org/10.1149/ma2024-02191732mtgabs.

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Perovskite materials have great potential for high efficiencies in photovoltaic devices, with the best performances exceeding 26% in a single junction. We now need to further develop perovskite device architectures that combine ease of industrial development with effective durability. Among the alternatives, mesoporous frameworks based on metal oxide and carbon are promising due to their inherent high stability. In the presented work, two perovskite formulations will be compared: MAPbI3 and (5-AVA)xMA1-xPbI3. Both were infiltrated using drop casting as a final step, which provides a clean indu

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Yao, Wendian, Dong Yang, and Dehui Li. "(Poster Award - 2nd Place) Layer-Number Engineered Momentum-Indirect Interlayer Excitons with Large Spectral Tunability." ECS Meeting Abstracts MA2023-02, no. 34 (2023): 1642. http://dx.doi.org/10.1149/ma2023-02341642mtgabs.

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The diversity of two-dimensional (2D) materials provides van der Waals heterostructures with abundant degrees of freedom and makes the family a promising candidate to realize novel optoelectronic devices and an attractive platform for exploring physical phenomena. Interlayer excitons in type-II van der Waals heterostructures are equipped with an oriented permanent dipole moment and long lifetime and thus would allow promising applications in excitonic and optoelectronic devices. However, in the widely studied van der Waals heterostructures constructed by transition metal dichalcogenides, the f

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Borri, Claudia, Nicola Calisi, Emanuele Galvanetto, et al. "First Proof-of-Principle of Inorganic Lead Halide Perovskites Deposition by Magnetron-Sputtering." Nanomaterials 10, no. 1 (2019): 60. http://dx.doi.org/10.3390/nano10010060.

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The present work reports the application of RF-magnetron sputtering technique to realize CsPbBr 3 70 nm thick films on glass substrate by means of a one-step procedure. The obtained films show highly uniform surface morphology and homogeneous thickness as evidenced by AFM and SEM investigations. XRD measurements demonstrate the presence of two phases: a dominant orthorhombic CsPbBr 3 and a subordinate CsPb 2 Br 5 . Finally, XPS data reveals surface bromine depletion respect to the stoichiometrical CsPbBr 3 composition, nevertheless photoluminescence spectroscopy results confirm the formation o

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Kaltzoglou, Andreas, Georgios K. Manolis, Mohamed M. Elsenety, et al. "Synthesis and Characterization of Lead-Free (CH3)3SSnI3 1-D Perovskite." Journal of Eletronic Materials 48, no. 11 (2019): 7533–38. https://doi.org/10.1007/s11664-019-07591-y.

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We report on the preparation, crystal structure and spectral properties of the trimethylsulfonium tin triiodide perovskite, (CH<sub>3</sub>)<sub>3</sub>SSnI<sub>3</sub>. The air-sensitive lead-free perovskite compound is prepared by reacting the (CH<sub>3</sub>)<sub>3</sub>SI and SnI<sub>2</sub> solid precursors in evacuated silica tubes at 100°C. According to powder x-ray diffraction and Rietveld analysis, (CH<sub>3</sub>)<sub>3</sub>SSnI<sub>3</sub>crystallizes at room temperature in hexagonal symmetry and forms a 1D network of face-sharing [SnI<sub>6</sub>] octahedra along the&nbsp

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Vorhies, Xavier, Jessica M. Andriolo, Joseph J. Thiebes, Emma K. Orcutt, Erik M. Grumstrup, and Jack L. Skinner. "Photoluminescence lifetime of perovskites on modified substrates." Journal of Vacuum Science & Technology B 43, no. 2 (2025). https://doi.org/10.1116/6.0004115.

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Lead halide perovskites have gained attention for their potential in optoelectronic applications, including photovoltaics and light-emitting devices, due to their remarkable optical and electronic properties. However, performance of these materials is highly dependent on morphological properties of the underlying substrates. In this study, the effects of substrate modifications on the photoluminescence lifetimes of CsPbBr₃ perovskites deposited on TiO2 substrates that were annealed at various temperatures were investigated. TiO2 substrates were characterized using glancing-angle x-ray diffract

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Zhang, Haochen, Zhixuan Bi, Zehua Zhai, et al. "Revealing Unusual Bandgap Shifts with Temperature and Bandgap Renormalization Effect in Phase‐Stabilized Metal Halide Perovskite Thin Films." Advanced Functional Materials, November 27, 2023. http://dx.doi.org/10.1002/adfm.202302214.

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AbstractHybrid organic–inorganic metal halide perovskites are emerging materials in photovoltaics, whose bandgap is one of the most crucial parameters governing their light‐harvesting performance. This work presents the temperature and photocarrier density dependence of the bandgap in two phase‐stabilized perovskite thin films (MA0.3FA0.7PbI3 and MA0.3FA0.7Pb0.5Sn0.5I3) using photoluminescence and absorption spectroscopy. Contrasting bandgap shifts with temperature are observed between the two perovskites. Using X‐ray diffraction and in situ high‐pressure photoluminescence spectroscopy, it is

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Sikarwar, Poonam, Abhishek Anand, and Aravind Kumar Chandiran. "Octahedral distortion induced photoluminescence in Cs2NaInxBi1−xCl6 halide double perovskites." ChemPhysChem, April 18, 2025. https://doi.org/10.1002/cphc.202401036.

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The halide perovskite materials have shown broadband light emission and there are multiple strategies to tweak the photoluminescence. Here in this work, we report a class of halide double perovskites Cs2NaxIn1‐xCl6 that are chemically tuned via trivalent cation engineering to introduce octahedral distortion. This distortion leads to improved light emission properties where the photoluminescence quantum yield improved from <1% for a symmetric‐octahedra containing parent compounds to > 6.5 % in distorted‐octahedra containing mixed‐trivalent compounds. Using structural and optical studies i

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Remmerswaal, Willemijn H. M., Bas T. van Gorkom, Dong Zhang, Martijn M. Wienk, and René A. J. Janssen. "Quantifying Non‐Radiative Recombination in Passivated Wide‐Bandgap Metal Halide Perovskites Using Absolute Photoluminescence Spectroscopy." Advanced Energy Materials, February 14, 2024. http://dx.doi.org/10.1002/aenm.202303664.

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AbstractWide‐bandgap (>1.6 eV) mixed‐halide perovskites tend to experience notable open‐circuit voltage losses in solar cells due to non‐radiative recombination. Here, the effects of defects and their passivation on the non‐radiative recombination of charge carriers in mixed‐halide perovskite solar cells are studied. By determining the quasi‐Fermi level splitting via absolute photoluminescence measurements of perovskite layers with and without charge transport layers, bulk and interface contributions are disentangled and compared to the radiative open‐circuit voltage. For wide‐bandgap perov

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Lin, Chun‐Ho, Changxu Liu, Jialin Yang, et al. "Regulating the Phase and Optical Properties of Mixed‐Halide Perovskites via Hot‐Electron Engineering." Advanced Functional Materials, April 13, 2024. http://dx.doi.org/10.1002/adfm.202402935.

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AbstractThe rapid development of mixed‐halide perovskites has established a versatile optoelectronic platform owing to their extraordinary physical properties, but there remain challenges toward achieving highly reliable synthesis and performance, in addition, post‐synthesis approaches for tuning their photoluminescence properties after device fabrication remain limited. In this work, an effective approach is reported to leveraging hot electrons generated from plasmonic nanostructures to regulate the optical properties of perovskites. A plasmonic metasurface composed of Au nanoparticles can ef

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Tekelenburg, Eelco K., Franco V. A. Camargo, Alessio Filippetti, et al. "Mechanism of Hot‐Carrier Photoluminescence in Sn‐Based Perovskites." Advanced Materials, December 11, 2024. https://doi.org/10.1002/adma.202411892.

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AbstractMetal halide perovskites have shown exceptionally slow hot‐carrier cooling, which has been attributed to various physical mechanisms without reaching a consensus. Here, experiment and theory are combined to unveil the carrier cooling process in formamidinium (FA) and caesium (Cs) tin triiodide thin films. Through impulsive vibrational spectroscopy and molecular dynamics, much shorter phonon dephasing times of the hybrid perovskite, which accounts for the larger blueshift in the photoluminescence seen at high excitation density for FASnI3 compared to CsSnI3 is reported. Density function

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Yuan, Ye, Genghua Yan, Samah Akel, Uwe Rau, and Thomas Kirchartz. "Deriving mobility-lifetime products in halide perovskite films from spectrally and time-resolved photoluminescence." Science Advances 11, no. 16 (2025). https://doi.org/10.1126/sciadv.adt1171.

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Lead-halide perovskites are semiconductor materials with attractive properties for photovoltaic and other optoelectronic applications. However, determining crucial electronic material parameters, such as charge-carrier mobility and lifetime, is plagued by a wide range of reported values and inconsistencies caused by interpreting and reporting data originating from different measurement techniques. Here, we propose a method for the simultaneous determination of mobility and lifetime using only one technique: transient photoluminescence spectroscopy. By measuring and simulating the decay of the

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Liu, Shangpu, Mikaël Kepenekian, Stanislav Bodnar, et al. "Bright circularly polarized photoluminescence in chiral layered hybrid lead-halide perovskites." Science Advances 9, no. 35 (2023). http://dx.doi.org/10.1126/sciadv.adh5083.

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Hybrid perovskite semiconductor materials are predicted to lock chirality into place and encode asymmetry into their electronic states, while softness of their crystal lattice accommodates lattice strain to maintain high crystal quality with low defect densities, necessary for high luminescence yields. We report photoluminescence quantum efficiencies as high as 39% and degrees of circularly polarized photoluminescence of up to 52%, at room temperature, in the chiral layered hybrid lead-halide perovskites (R/S/Rac)-3BrMBA 2 PbI 4 [3BrMBA = 1-(3-bromphenyl)-ethylamine]. Using transient chiroptic

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Koc, Fulya, Nathaniel P. Gallop, Juanzi Shi, Boris Rivkin, Fabian Paulus, and Yana Vaynzof. "Controlling Halide Segregation in Hybrid Perovskites Through Varied Halide Stoichiometry and Illumination Conditions." Advanced Electronic Materials, June 2, 2025. https://doi.org/10.1002/aelm.202400895.

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AbstractIon migration and phase segregation continue to limit the application of mixed halide hybrid perovskite materials in (opto)electronic devices. To better understand the underlying causes behind these effects, photoluminescence (PL) spectroscopy is utilized to study a series of mixed‐halide hybrid perovskites with the general formula MAPb(I0.4Br0.6)x, focusing on subtle alterations to the perovskite's halide stoichiometry (2.94 ≤ x ≤ 3.04). These findings reveal that even slight variations in halide stoichiometry and/or illumination conditions significantly affect the rate and extent of

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Li, Wenbo, Zhe Li, Shun Zhou, et al. "Unveiling the nexus between irradiation and phase reconstruction in tin-lead perovskite solar cells." Nature Communications 16, no. 1 (2025). https://doi.org/10.1038/s41467-025-55814-0.

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AbstractTin-lead perovskites provide an ideal bandgap for narrow-bandgap perovskites in all-perovskite tandem solar cells, fundamentally improving power conversion efficiency. However, light-induced degradation in ambient air is a major issue that can hinder the long-term operational stability of these devices. Understanding the specifics of what occurs during this pathway provides the direction for improving device stability. In this study, we investigate the long-term stability problem of tin-lead perovskites under irradiation, counterintuitively discovering an irreversible phase reconstruct

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Su, Yu, Haitao Xie, Congzhou Li, et al. "AC‐Field‐Induced Reversible Photoluminescence Modulation in 2D Metal Halide Perovskites." Advanced Functional Materials, May 15, 2025. https://doi.org/10.1002/adfm.202505380.

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Abstract2D Ruddlesden‐Popper (RP) phase perovskites are promising materials for optoelectronic devices due to their unique properties and environmental stability. In this work, fully electrical, dynamic, and reversible modulation of photoluminescence (PL) intensity in RP‐phase perovskite nanosheets at room temperature is achieved for the first time using alternating current (AC) electric fields. A capacitor structure with (PEA)2PbI4 nanosheets and HfO2 enables significant PL quenching, with the largest modulation amplitude reported to date. The degree of quenching depends on AC field parameter

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Dreessen, Chris, Kassio P. S. Zanoni, Lidón Gil‐Escrig, et al. "When JV Curves Conceal Material Improvements: The Relevance of Photoluminescence Measurements in the Optimization of Perovskite Solar Cells." Advanced Optical Materials, September 13, 2023. http://dx.doi.org/10.1002/adom.202301019.

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AbstractLead halide perovskites have prompted great interest, offering impressive photovoltaic performances. Most fundamental investigations and cell optimizations focus on solution‐based solar cells, which are not easily extended to larger scales. Commonly in these cells, losses in the open‐circuit voltage are attributed to arise primarily from interface recombination, and therefore the most studies have focused on optimization of the surface to eliminate defects states. In contrast, thermal evaporation is an alternative, solvent‐free, and scalable method to deposit lead halide perovskites th

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Ridzoňová, Katarína, Amalraj Peter Amalathas, Branislav Dzurnak, et al. "Correlating light-induced deep defects and phase segregation in mixed-halide perovskites." Journal of Materials Chemistry A, 2022. http://dx.doi.org/10.1039/d2ta03538c.

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Mixed-halide perovskites are highly promising materials for tandem solar cells. The phenomenon of phase segregation, however hinders their application. Here, we combine Fourier-Transform photocurrent spectroscopy with photoluminescence and current density-voltage...

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Bhandari, Sahil, Milon Kundar, Manjari Chakraborty, and Suman Kalyan Pal. "Exciton dynamics in two-dimensional metal halide perovskite: The impact of film processing." Journal of Chemical Physics 160, no. 4 (2024). http://dx.doi.org/10.1063/5.0187062.

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We investigate the hot carrier and exciton dynamics in two-dimensional (2D) metal halide perovskites using time-resolved spectroscopy. 2D perovskite films were prepared with and without dimethyl sulfoxide treatment to elucidate the effect of film processing techniques on optoelectronic properties. Femtosecond transient absorption measurements reveal that the charge carrier dynamics are different in the two samples, and excitons survive for a longer time in the treated sample than the untreated one. While the early-time carrier dynamics in the untreated sample are dominated by charges trapped b

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Liu, Zhifu, John A. Peters, Khasim Saheb Bayikadi, et al. "Defects of perovskite semiconductor CsPbBr3 investigated via photoluminescence and thermally stimulated current spectroscopies." Journal of Applied Physics 134, no. 24 (2023). http://dx.doi.org/10.1063/5.0177809.

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Halide perovskites are essential materials for hard radiation detectors at ambient temperature. To improve detector performance, charge transport must be investigated and optimized. Using photoluminescence (PL) and thermally stimulated current (TSC) spectroscopies, we investigate photogenerated charge carriers in Bridgman-grown CsPbBr3 single crystals to understand the nature of charge transport. PL spectroscopy of these halide perovskites revealed the presence of strong emission bands at the band edge, which were attributed to free or bound excitons. It is shown that a wide broadening of the

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Sharma, Dharmendar Kumar, Shuzo Hirata, and Martin Vacha. "Single-particle electroluminescence of CsPbBr3 perovskite nanocrystals reveals particle-selective recombination and blinking as key efficiency factors." Nature Communications 10, no. 1 (2019). http://dx.doi.org/10.1038/s41467-019-12512-y.

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Abstract Halide perovskites nanocrystals (NCs) are being explored as promising materials for optoelectronic applications, such as light-emitting devices or lasers. However, electroluminescence devices prepared from such NCs have long suffered from low efficiency and there has been no systematic study on the nanoscale origin of the poor efficiencies. Here, we use single-particle spectroscopy to compare electroluminescence and photoluminescence on the level of individual NCs of the perovskite CsPbBr3. The NCs form aggregates in a conducting matrix used as an emission layer in an electroluminesce

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