Results 51 to 60 of about 3,090 (200)

Theoretical Simulation of a Room Temperature HgCdTe Long-Wave Detector for Fast Response − Operating Under Zero Bias Conditions

Metrology and Measurement Systems, 2017
The paper reports on a long-wave infrared (cut-off wavelength ~ 9 μm) HgCdTe detector operating under nbiased condition and room temperature (300 K) for both short response time and high detectivity operation.
Martyniuk Piotr, Kopytko Małgorzata, Madejczyk Paweł, Henig Aleksandra, Grodecki Kacper, Gawron Waldemar, Rutkowski Jarosław   +6 more
doaj   +1 more source

Bias‐Tunable Two‐Terminal Organic Photodetector for Intelligent Imaging

Advanced Science, EarlyView.
A vertically stacked two‐terminal photodetector with a symmetric donor–acceptor–donor trilayer active exhibits reconfigurable photoresponse with bias‐tunable magnitude and polarity, together with sub‐millisecond response speed and a wide tunable output window.
Sangin Hahn, Sanghoon Park, Seunghyup Yoo   +2 more
wiley   +1 more source

Performance Optimization of Hg_1-xCd_xTe Photovoltaic Detectors Under Strong Illumination Considering Temperature and Wavelength Dependencies

IEEE Photonics Journal
Currently, HgCdTe detectors are advancing towards very long wavelengths and room temperature operation. However, as operating temperatures and illumination intensity increase, the performance of these detectors deteriorates, evidenced by increased dark ...
Jiahui Chen, Wangyong Chen, Linlin Cai, Pengling Yang, Dahui Wang, Manling Shen, Xiangyang Li, Hui Qiao   +7 more
doaj   +1 more source

Graded multilayer triple cation perovskites for high speed and detectivity self-powered photodetector via scalable spray coating process

Scientific Reports, 2022
Rapid advancements in perovskite materials have led to potential applications in various optoelectronic devices, such as solar cells, light-emitting diodes, and photodetectors.
Koth Amratisha, Waris Tuchinda, Pipat Ruankham, Atittaya Naikaew, Pimsuda Pansa-Ngat, Ladda Srathongsian, Worawat Wattanathana, Ko Ko Shin Thant, Ratchadaporn Supruangnet, Hideki Nakajima, Somboon Sahasithiwat, Pongsakorn Kanjanaboos   +11 more
doaj   +1 more source

Thermal Spin Coated PbS QD SWIR Imager for Non‐Invasive Glucose Monitoring

Advanced Science, EarlyView.
Thermal spin‐coating enables controlled film formation of PbS quantum dots, leading to denser packing, reduced defect‐assisted transport, and improved carrier extraction. The resulting photodetectors exhibit suppressed dark current, enhanced responsivity, and faster response.
Lei Rao, Shuo Cheng, Qian Chen, Jiankai Wang, Jingrui Ma, Junjie Hao, Xiao Wei Sun, Wei Chen, Cun Zheng Ning, Haodong Tang   +9 more
wiley   +1 more source

A Cascade Bilayer Electron-Transporting Layer for Enhanced Performance and Stability of Self-Powered All-Inorganic Perovskite Photodetectors

Molecules
This study aims to enhance optoelectronic properties of all-inorganic perovskite photodetectors (PDs) by incorporating a bilayer electron transport layer (ETL).
Yu Hyun Kim, Jae Woong Jung
doaj   +1 more source

3D‐Printed Magnetoelectronics for Interactive Appliances and Self‐Aware 4D‐Printed Mechatronics

Advanced Science, EarlyView.
3D‐printed magnetoelectronics integrate high‐performance magnetic field sensing directly into complex structural components. Flexible spring and cross‐shaped sensors exhibit giant magnetoimpedance and 3D Hall sensing for vector field reconstruction. Applications include smart‐home switches, robotic joysticks, volumetric magnetometers, and self‐aware 4D‐
Eduardo Sergio Oliveros‐Mata, Anna Martin Vilardell, Fabian Ganss, Christoph Leyens, Lukas Stepien, Denys Makarov   +5 more
wiley   +1 more source

Colossal Photovoltaic Current in Ferroelectric Oxide by Constructing Defect Band

Advanced Science, EarlyView.
Colossal photovoltaic current density of 34.36 mA/cm2 under 375 nm illumination has been achieved in the Pb‐deficient PbTiO3 film. The ultraviolet photoresponsivity surpasses that of all reported ferroelectric materials. This enhancement is attributed to the junction effect between the Pb‐deficient and non‐defective layers.
Yiran Sun, Zhenbang Dai, Xingzhong Cao, Peng Zhang, Chen Lin, Zihang Huang, Ruian Zhang, Yi Fu, Xuanyu Jiang, He Tian, Jingjing Xue, Kaifeng Wu, Junhui Wang, Tianqi Deng, Andrew M. Rappe, Gaorong Han, Zhaohui Ren   +16 more
wiley   +1 more source

Impressive Reduction of Dark Current in InSb Infrared Photodetector to achieve High Temperature Performance [PDF]

Journal of Optoelectronical Nanostructures, 2018
Infrared photo detectors have vast and promising applications in military,industrial and other fields. In this paper, we present a method for improving theperformance of an infrared photodetector based on an InSb substance.
Saman Salimpour, Hassan Rasooli Saghai
doaj  

High-performance near-infrared photodetectors based on gate-controlled graphene–germanium Schottky junction with split active junction

Nanophotonics, 2022
The structure of a gate-controlled graphene/germanium hybrid photodetector was optimized by splitting the active region to achieve highly sensitive infrared detection capability.
Kim Cihyun, Yoo Tae Jin, Kwon Min Gyu, Chang Kyoung Eun, Hwang Hyeon Jun, Lee Byoung Hun   +5 more
doaj   +1 more source