Results 31 to 40 of about 12,931 (263)

Realization of cost-effective and high-performance solar-blind ultraviolet photodetectors based on amorphous Ga2O3 prepared at room temperature

Materials Today Advances, 2022
The solar-blind photodetectors based on amorphous Ga2O3 (a-Ga2O3) are attractive in recent years due to their simple fabrication process and good compatibility with different substrates.
Yifei Wang, Yixin Xue, Jie Su, Zhenhua Lin, Jincheng Zhang, Jingjing Chang, Yue Hao   +6 more
doaj   +1 more source

In-situ neutron-transmutation for substitutional doping in 2D layered indium selenide based phototransistor

eLight, 2022
Neutron-transmutation doping (NTD) has been demonstrated for the first time in this work for substitutional introduction of tin (Sn) shallow donors into two-dimensional (2D) layered indium selenide (InSe) to manipulate electron transfer and charge ...
Zhinan Guo, Yonghong Zeng, Fanxu Meng, Hengze Qu, Shengli Zhang, Shipeng Hu, Sidi Fan, H. Zeng, R. Cao, P. Prasad, Dian Fan, Han Zhang   +11 more
semanticscholar   +1 more source

Sensitivity Limit of Nanoscale Phototransistors

, 2017
In this paper the optical gain mechanism in phototransistor detectors (PTDs) is explored in low light conditions. An analytical formula is derived for the physical limit on the minimum number of detectable photons for the PTD. This formulation shows that
Brown, André EX, Ch'ng, Quee-Lim, Currie, Michael, Grundy, Laura J, Hokanson, Jim, Javer, Avelino, Kerr, Rex, Lee, Chee Wai, Li, Chris, Li, Kezhi, Schafer, William R, Yemini, Eviatar   +11 more
core   +4 more sources

A Low‐Toxic Colloidal Quantum Dots Sensitized IGZO Phototransistor Array for Neuromorphic Vision Sensors

Advanced Optical Materials
The rapid development of optoelectronic devices with biomimetic synaptic behavior holds significant potential for neuromorphic visual applications. However, considerable challenges remain including convenient device fabrication and low toxicity materials
Tong Chen, Shijie Zhan, Benxuan Li, Bo Hou, Hang Zhou   +4 more
semanticscholar   +1 more source

Analysis on the Optical Response of Ldr and Phototransistor in Photoplethysmography

Sensing and Bio-Sensing Research, 2020
In photoplethysmography, light source and light detector are employed such that the received signal corresponds to a particular information needed. This research used five different LEDs as light sources.
Celeste M. Ojeda, Jennifer C. Dela Cruz
doaj   +1 more source

phototransistor [PDF]

, 2014
Citation: 'phototransistor' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.P04658 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire   +1 more source

SnSe₂ Quantum Dots: Facile Fabrication and Application in Highly Responsive UV-Detectors

Nanomaterials, 2019
Synthesizing quantum dots (QDs) using simple methods and utilizing them in optoelectronic devices are active areas of research. In this paper, we fabricated SnSe2 QDs via sonication and a laser ablation process. Deionized water was used as a solvent, and
Xiangyang Li, Ling Li, Huancheng Zhao, Shuangchen Ruan, Wenfei Zhang, Peiguang Yan, Zhenhua Sun, Huawei Liang, Keyu Tao   +8 more
doaj   +1 more source

A Fast-Response Ultraviolet Phototransistor with a PVK QDs/ZnO Nanowire Heterostructure and Its Application in Pharmaceutical Solute Detection

Nanomaterials, 2023
The sensitivity and photoelectric noise of UV photodetectors are challenges that need to be overcome in pharmaceutical solute detection applications. This paper presents a new device concept for a CsPbBr3 QDs/ZnO nanowire heterojunction structure for ...
Jiajun Li, Qihua Guo, Ye Tao, Dalin Li, Yiting Yang, Dandan Zhou, Jiangyong Pan, Xiang Liu, Zhi Tao   +8 more
doaj   +1 more source

Phototransistor [PDF]

, 1973
A phototransistor is described in which there is included as a part of its integral structure an auxiliary diode in the form of an added base-collector junction.
Mccann, D. H.
core   +1 more source

Wafer‐Scale Synthesis of Mithrene and its Application in UV Photodetectors

Advanced Functional Materials, EarlyView.
A controlled tarnishing step on the silver surface precedes the solid‐vapor‐phase chemical transformation into silver phenylselenolate thin films. The approach yields crystals exceeding 1 µm with improved in‐plane orientation. Integration on graphene phototransistors demonstrates high photoresponsivity, positioning mithrene as a promising material for ...
Maryam Mohammadi, Stefanie L. Stoll, Analía F. Herrero, Sana Khan, Federico Fabrizi, Christian Gollwitzer, Zhenxing Wang, Surendra B. Anantharaman, Max C. Lemme   +8 more
wiley   +1 more source