Relevant bibliographies by topics / Filter-free photodetectors

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  1. Journal articles
  2. Dissertations / Theses
  3. Conference papers

Academic literature on the topic 'Filter-free photodetectors'

Author: Grafiati
Published: 28 June 2021
Last updated: 4 February 2022

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Journal articles on the topic "Filter-free photodetectors"

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Lan, Zhaojue, Ying Suet Lau, Yiwen Wang, Zuo Xiao, Liming Ding, Dan Luo, and Furong Zhu. "Filter‐Free Band‐Selective Organic Photodetectors." Advanced Optical Materials 8, no. 24 (October 23, 2020): 2001388. http://dx.doi.org/10.1002/adom.202001388.

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Zhang, Peng, Yunqiu Hua, Xiang Li, Longzhen Zhang, Lin Liu, Rongzhen Li, Guodong Zhang, and Xutang Tao. "Filter-free color image sensor based on CsPbBr3−3nX3n (X = Cl, I) single crystals." Journal of Materials Chemistry C 9, no. 8 (2021): 2840–47. http://dx.doi.org/10.1039/d0tc05660j.

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Centimeter-sized CsPbBr3−3nX3n single crystals were grown using the modified Bridgman method. Eight filter-free narrowband photodetectors were fabricated based on the CsPbBr3−3nX3n crystals utilizing the concept of charge collection narrowing. A filter-free color image sensor was constructed using these eight CsPbBr3−3nX3n narrowband photodetectors.
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Xiong, Qiuyang, Farsad Imtiaz Chowdhury, and Xihua Wang. "Filter-Free Narrowband Photodetectors Employing Colloidal Quantum Dots." IEEE Journal of Selected Topics in Quantum Electronics 24, no. 2 (March 2018): 1–6. http://dx.doi.org/10.1109/jstqe.2017.2776522.

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Li, Ziyuan, Simeon Trendafilov, Fanlu Zhang, Monica S. Allen, Jeffery W. Allen, Sukrith U. Dev, Wenwu Pan, et al. "Broadband GaAsSb Nanowire Array Photodetectors for Filter-Free Multispectral Imaging." Nano Letters 21, no. 17 (August 23, 2021): 7388–95. http://dx.doi.org/10.1021/acs.nanolett.1c02777.

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Cadusch, Jasper J., Jiajun Meng, Benjamin J. Craig, Vivek Raj Shrestha, and Kenneth B. Crozier. "Visible to long-wave infrared chip-scale spectrometers based on photodetectors with tailored responsivities and multispectral filters." Nanophotonics 9, no. 10 (June 23, 2020): 3197–208. http://dx.doi.org/10.1515/nanoph-2020-0114.

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AbstractChip-scale microspectrometers, operational across the visible to long-wave infrared spectral region will enable many remote sensing spectroscopy applications in a variety of fields including consumer electronics, process control in manufacturing, as well as environmental and agricultural monitoring. The low weight and small device footprint of such spectrometers could allow for integration into handheld, unattended vehicles or wearable-electronics based systems. This review will focus on recent developments in nanophotonic microspectrometer designs, which fall into two design categories: (i) planar filter-arrays used in conjunction with visible or IR detector arrays and (ii) microspectrometers using filter-free detector designs with tailored responsivities, where spectral filtering and photocurrent generation occur within the same nanostructure.
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Galal, Mariam, Wai Pang Ng, Richard Binns, and Ahmed Abd El Aziz. "Experimental Characterization of RGB LED Transceiver in Low-Complexity LED-to-LED Link." Sensors 20, no. 20 (October 10, 2020): 5754. http://dx.doi.org/10.3390/s20205754.

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This paper proposes a low-complexity and energy-efficient light emitting diode (LED)-to-LED communication system for Internet of Things (IoT) devices with data rates up to 200 kbps over an error-free transmission distance up to 7 cm. The system is based on off-the-shelf red-green-blue (RGB) LEDs, of which the red sub-LED is employed as photodetector in photovoltaic mode while the green sub-LED is the transmitter. The LED photodetector is characterized in the terms of its noise characteristics and its response to the light intensity. The system performance is then analysed in terms of bandwidth, bit error rate (BER) and the signal to noise ratio (SNR). A matched filter is proposed, which optimises the performance and increases the error-free distance.
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Gao, Liang, Cong Ge, Wenhui Li, Chuancheng Jia, Kai Zeng, Weicheng Pan, Haodi Wu, et al. "Flexible Filter-Free Narrowband Photodetector with High Gain and Customized Responsive Spectrum." Advanced Functional Materials 27, no. 33 (July 6, 2017): 1702360. http://dx.doi.org/10.1002/adfm.201702360.

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Louro, P., P. Soares, H. Ferraz, P. Pinho, and M. Vieira. "Design of an optical transmission WDM link using plastic optical fibers." MRS Proceedings 1536 (2013): 85–90. http://dx.doi.org/10.1557/opl.2013.754.

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ABSTRACTIn this paper we present the design of an optical transmission system, using plastic optical fiber (POF), which operates in the visible range of the electromagnetic spectrum. The optical signals are generated by modulated visible LEDs, transmitted through POF and at the reception end a pin-pin photodetector is implemented. A computer simulation tool dedicated to the analysis of optical circuits was used for preliminary analysis of the optical system. The performance of the optical link was analyzed by BER prediction variation on the transmission rate. The tested optical system was assembled using high efficiency LEDs of the same wavelengths, a commercial POF and a pin-pin photodetector based on a-SiC:H/a-SI:H. This detector behaves as an optical filter with controlled wavelength sensitivity. Different optical signals, obtained by adequate modulation of LED optical sources, were coupled into the POF and the combined optical signal at the fiber termination was directed onto the photodetector active area. The output photocurrent was measured with and without optical bias. Results compare the use of a pin-pin transducer device in free space and in a POF transmission link.
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Shtein, Samson Mil’, and Dhawal Asthana. "Design of Solar Blind Photodetectors for Communication with Green Signal (λ= 0.532µm) in Space. Part II." Journal of Engineering Research and Reports, December 2, 2020, 20–25. http://dx.doi.org/10.9734/jerr/2020/v19i217227.

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The areas of Free Space Optical (FSO) communication and high-speed Visible Light Communication (VLC) offer potential for very high-speed data transmission. Favorable attributes including high frequency and wider bandwidths that can enable transmission speeds of the order 100Gb/s, associated with the visible region of the electromagnetic spectrum make it preferable for allowing communication among satellites and ground stations, under-water communication, etc. However, limitations associated with spectral absorption characteristics of the propagating media have stymied further development of such technologies. Aims: Commercial lasers operating in red, green and blue lights combined with three photodetectors, each sensitive to selected wavelengths (colors) present basics of long-distance optical communication system. The current study (Part II) depicts the design and operation of a solar-blind photodetector capable to work explicitly with green wavelength of 532nm. Study Design and Results: The structure of the solar-blind photodetector consists of two sections made of InxGa1-xN (Indium Gallium Nitride) heterostructure, (where x denotes the mole fraction)-a filter and a double barrier tunneling diode. The topmost approximately 1µm thick section acts as a filter and as a p-i-n solar cell providing the required voltage bias to the photodiode. The filter with Eg (Energy Band Gap)=2.33eV absorbs all photons having wavelengths shorter than 532nm. The double barrier tunneling photodiode which comprises the lower section operates with Eg=2.28eV. It consists of an n-type lightly doped quantum well having a width of 2.5nm housed between two lightly doped barriers of 10nm thickness. The 0.12µm topmost and bottom regions of the photodiode are doped with p and n (2×105cm-3) type impurities, respectively. The illuminated cross-section area of the device is finalized at 1mm2.
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Guo, Zhinan, Rui Cao, Huide Wang, Xi Zhang, Fanxu Meng, Xue Chen, Siyan Gao, et al. "High performance polarization sensitive photodetectors on two-dimensional β-InSe." National Science Review, May 31, 2021. http://dx.doi.org/10.1093/nsr/nwab098.

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Abstract Two-dimensional (2D) indium selenide (InSe) has been widely studied for applications in transistors and photodetectors, benefitting from its excellent optoelectronic properties. Among the three specific polytypes (γ-, ϵ- and β-phase) of InSe, only the crystal lattice of InSe in β-phase (β-InSe) belongs to a nonsymmetry point group of $D_{6h}^4$, which indicates a stronger anisotropic transport behavior and a potential in the polarized photodetection of β-InSe based optoelectronic devices. Therefore, we prepare the stable p-type 2D layered β-InSe via temperature gradient method. The anisotropic Raman, transport and photoresponse properties of β-InSe have been experimentally and theoretically proved. It shows that the β-InSe based device has a ratio of 3.76 for the maximum to minimum dark current and a high photocurrent anisotropic ratio of 0.70 at 1 V bias voltage, respectively. The appealing anisotropic properties demonstrated in this work clearly identify β-InSe as a competitive candidate for filter-free polarization sensitive photodetectors.
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Dissertations / Theses on the topic "Filter-free photodetectors"

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Gavranović, Stevan. "Monokrystaly perovskitů pro detekci elektromagnetického záření." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2021. http://www.nusl.cz/ntk/nusl-445139.

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This thesis is focused on the study of the detection of electromagnetic radiation using monocrystalline perovskites. Theoretical part deals with basic principles of detections and possible applications of hybrid perovskite crystals in the field of ultraviolet and visible spectrum detection. Parameters of the recently published perovskite photodetectors are also presented. Experimental part describes synthesis, structural and optical properties of MAPbBr3 single crystals and electrical characterization of the Au/MAPbBr3/Au photodetector. Photodetector parameters (responsivity, external quantum efficiency and specific detectivity) are calculated based on the spectral and switching (on/off) current responses.
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Paudel, Nava R. "Nanoparticle-aided Radiation Therapy: Micro-dosimetry and Evaluation of the Mediators Producing Biological Damage." University of Toledo / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1403142628.

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Conference papers on the topic "Filter-free photodetectors"

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Kang, Chun Hong, Guangyu Liu, Changmin Lee, Omar Alkhazragi, Jonathan M. Wagstaff, Kuang-Hui Li, Fatimah Alhawaj, et al. "1.5-Gbit/s Filter-free Optical Communication Link based on Wavelength-selective Semipolar ( 20 21 ¯ ) InGaN/GaN Micro-photodetector." In CLEO: Science and Innovations. Washington, D.C.: OSA, 2020. http://dx.doi.org/10.1364/cleo_si.2020.sm3r.5.

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