Relevant bibliographies by topics / Methylammonium Dipoles

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Academic literature on the topic 'Methylammonium Dipoles'

Author: Grafiati
Published: 6 September 2023
Last updated: 31 July 2025

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Journal articles on the topic "Methylammonium Dipoles"

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Govinda, Sharada, Bhushan P. Kore, Menno Bokdam, et al. "Behavior of Methylammonium Dipoles in MAPbX3 (X = Br and I)." Journal of Physical Chemistry Letters 8, no. 17 (2017): 4113–21. http://dx.doi.org/10.1021/acs.jpclett.7b01740.

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Han, Jinyoung, Hannah Kwon, Eunah Kim, Dong-Wook Kim, Hae Jung Son, and Dong Ha Kim. "Interfacial engineering of a ZnO electron transporting layer using self-assembled monolayers for high performance and stable perovskite solar cells." Journal of Materials Chemistry A 8, no. 4 (2020): 2105–13. http://dx.doi.org/10.1039/c9ta12750j.

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The SAM layer which formed hydrogen-bonding to the methylammonium of the perovskite induced dipole moments at the interface, resulting in energy band bending and increased built-in voltage, and consequently, improved charge transfer of the PSC.
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3

Wu, Ming-Chung, Ching-Mei Ho, Kai-Chi Hsiao, Shih-Hsuan Chen, Yin-Hsuan Chang, and Meng-Huan Jao. "Antisolvent Engineering to Enhance Photovoltaic Performance of Methylammonium Bismuth Iodide Solar Cells." Nanomaterials 13, no. 1 (2022): 59. http://dx.doi.org/10.3390/nano13010059.

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High absorption ability and direct bandgap makes lead-based perovskite to acquire high photovoltaic performance. However, lead content in perovskite becomes a double-blade for counterbalancing photovoltaic performance and sustainability. Herein, we develop a methylammonium bismuth iodide (MBI), a perovskite-derivative, to serve as a lead-free light absorber layer. Owing to the short carrier diffusion length of MBI, its film quality is a predominant factor to photovoltaic performance. Several candidates of non-polar solvent are discussed in aspect of their dipole moment and boiling point to rev
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Tian, Congcong, Zhanfei Zhang, Anxin Sun, et al. "Tuning phase stability and interfacial dipole for efficient methylammonium-free Sn-Pb perovskite solar cells." Nano Energy 116 (November 2023): 108848. http://dx.doi.org/10.1016/j.nanoen.2023.108848.

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Kaválek, Jaromír, Vladimír Macháček, Makky M. M. Hassanien, and Vojeslav Štěrba. "Base-catalyzed formation of spiro adduct from N-methyl-N-(2,4,6-trinitrophenyl)glycinamide, the smiles rearrangement of the amide in methanol." Collection of Czechoslovak Chemical Communications 53, no. 3 (1988): 601–18. http://dx.doi.org/10.1135/cccc19880601.

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The reaction of N-methyl-N-(2,4,6-trinitrophenyl)glycinamide (Ic with methoxide in methanol produces the spiro adduct IIc(A). In methanolic acetate buffers, the equilibrium is rapidly established between the spiro adduct IIc(A) and the dipolar ion of 2-methylamino-N-(2,4,6-trinitrophenyl)acetamide (IIIc(Z)). The equilibrium constant of the reaction IIIc(Z) ⇆ IIc(A) + H+ is by eight orders of magnitude greater than that of the analogous cyclization of 2-methylamino-N-methyl-N-(2,4,6-trinitrophenyl)acetamide to the spiro adduct. In chloracetate buffers, the dipolar ion is protonated to give 2-me
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Park, Heesoo, Syam Kumar, Sanjay Chawla, and Fedwa El-Mellouhi. "Design Principles of Large Cation Incorporation in Halide Perovskites." Molecules 26, no. 20 (2021): 6184. http://dx.doi.org/10.3390/molecules26206184.

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Perovskites have stood out as excellent photoactive materials with high efficiencies and stabilities, achieved via cation mixing techniques. Overcoming challenges to the stabilization of Perovskite solar cells calls for the development of design principles of large cation incorporation in halide perovskite to accelerate the discovery of optimal stable compositions. Large fluorinated organic cations incorporation is an attractive method for enhancing the intrinsic stability of halide perovskites due to their high dipole moment and moisture-resistant nature. However, a fluorinated cation has a l
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Simenas, Mantas, Sergejus Balciunas, Jacob N. Wilson, et al. "Suppression of phase transitions and glass phase signatures in mixed cation halide perovskites." Nature Communications 11, no. 1 (2020). http://dx.doi.org/10.1038/s41467-020-18938-z.

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Abstract Cation engineering provides a route to control the structure and properties of hybrid halide perovskites, which has resulted in the highest performance solar cells based on mixtures of Cs, methylammonium, and formamidinium. Here, we present a multi-technique experimental and theoretical study of structural phase transitions, structural phases and dipolar dynamics in the mixed methylammonium/dimethylammonium MA1-xDMAxPbBr3 hybrid perovskites (0 ≤ x ≤ 1). Our results demonstrate a significant suppression of the structural phase transitions, enhanced disorder and stabilization of the cub
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8

Leguy, Aurelien M. A., Jarvist Moore Frost, Andrew P. McMahon, et al. "The dynamics of methylammonium ions in hybrid organic–inorganic perovskite solar cells." Nature Communications 6, no. 1 (2015). http://dx.doi.org/10.1038/ncomms8124.

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Abstract Methylammonium lead iodide perovskite can make high-efficiency solar cells, which also show an unexplained photocurrent hysteresis dependent on the device-poling history. Here we report quasielastic neutron scattering measurements showing that dipolar CH3NH3 + ions reorientate between the faces, corners or edges of the pseudo-cubic lattice cages in CH3NH3PbI3 crystals with a room temperature residence time of ∼14 ps. Free rotation, π-flips and ionic diffusion are ruled out within a 1–200-ps time window. Monte Carlo simulations of interacting CH3NH3 + dipoles realigning within a 3D lat
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9

Sukmas, Wiwittawin, Vichawan Sakulsupich, Prutthipong Tsuppayakorn-aek, et al. "Preferred oriented cation configurations in high pressure phases IV and V of methylammonium lead iodide perovskite." Scientific Reports 10, no. 1 (2020). http://dx.doi.org/10.1038/s41598-020-77852-y.

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AbstractA microscopic viewpoint of structure and dipolar configurations in hybrid organic–inorganic perovskites is crucial to understanding their stability and phase transitions. The necessity of incorporating dispersion interactions in the state-of-the-art density functional theory for the $$CH_3NH_3PbI_3$$ C H 3 N H 3 P b I 3 perovskite (MAPI) is demonstrated in this work. Some of the vdW methods were selected to evaluate the corresponding energetics properties of the cubic MAPI with various azimuthally rotated MA organic cation orientations. The highest energy barrier obtained from PBEsol r
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Wang, Yimin, Qianqian Wu, Lin Wang, et al. "Boosting Efficiency and Stability of Green InP Quantum Dot Light-Emitting Diodes by Interface Dipole Modulation." Journal of Materials Chemistry C, 2022. http://dx.doi.org/10.1039/d2tc01522f.

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The interface states have significant effects on the optoelectronic properties of quantum dots-based light emitting diodes (QLEDs). Herein, we employed a dielectric interlayer, namely, phenylethylammonium bromide (PEABr): methylammonium bromine (MABr),...
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Dissertations / Theses on the topic "Methylammonium Dipoles"

1

Sharada, G. "Structure, Dynamics and Optical Properties of Organic-Inorganic Hybrid Perovskites." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/4129.

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Organic-inorganic hybrid perovskites have emerged as promising photovoltaic materials in the last few years, with the possibility of easy, solution synthesis. In this thesis, we have investigated some intrinsic material properties of the hybrid lead halide perovskites in an attempt to understand factors responsible for the excellent photovoltaic behaviour. The presence of the (CH3NH3)+ or methylammonium (MA) ion with a permanent dipole moment in CH3NH3PbI3 gives rise to the possibility of ferroelectricity. In view of the continued controversy concerning the ferroelectric/non-ferroelectric natu
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2

Fan, Chiang, and 范強. "Effect of Dipole Rotation on Hysteresis in Methylammonium Lead Bromide." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/86968g.

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碩士<br>國立臺灣大學<br>應用物理研究所<br>107<br>Electric-field-induced dipole rotation of the intercalated organic molecules in halide perovskites has been suggested to be one controllable factor for fundamental properties and stabilities in perovskites. However, up to now, how the electric field triggers the dipole rotation of the intercalated organic molecules is still unknown. Here, we record the real-space atomic image and simultaneously probe the corresponding current-voltage (I-V) hysteresis in the methylammonium lead bromide (MAPbBr3) system using cross-sectional scanning tunnel
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