Results 21 to 30 of about 17,314 (264)

Self-Driven Photo-Polarized Water Molecule-Triggered Graphene-Based Photodetector

Research, 2023
Flowing water can be used as an energy source for generators, providing a major part of the energy for daily life. However, water is rarely used for information or electronic devices.
Shisheng Lin, Chang Liu, Xin Chen, Yi Zhang, Hongtao Lin, Xutao Yu, Yujiao Bo, Yanghua Lu   +7 more
doaj   +1 more source

Ultrasensitive flexible broadband photodetectors achieving pA scale dark current

npj Flexible Electronics, 2017
Semiconductor physics: Energy saving flexible broadband hybrid photodetector Energy efficient and flexible alternative photodetector that detects both visible and invisible light comes closer to real life than ever.
Xiao Luo, Feiyu Zhao, Lili Du, Wenli Lv, Kun Xu, Yingquan Peng, Ying Wang, Feiping Lu   +7 more
doaj   +1 more source

Research on Germanium Photodetector with Multi-Mode Waveguide Input

Photonics, 2023
In this work, a vertical N-I-P germanium (Ge) photodetector (PD) with a multi-mode waveguide input is presented. The fabricated devices exhibit a low dark current of 10 nA at bias of −1 V, and a high responsivity of exceeding 0.75 A/W over the wavelength
Longsheng Wu, Dongsheng Lv, Nengyang Zhao, Ruxue Wang, Aimin Wu   +4 more
doaj   +1 more source

Optimization of the optical scheme of a photodetector module operating in the spectral range of 1.3–1.6 μm

Научно-технический вестник информационных технологий, механики и оптики
Optical system consisting of single-mode optical fiber and p-i-n photodiode semiconductor chip with InGaAs active layer was investigated. Considered photodetector module has responsivity in 1.3–1.6 µm.
Ya. N. Kovach, V. V. Andryushkin, E. S. Kolodeznyi, I. I. Novikov, A. A. Petrenko, A. V. Kamarchuk, S. S. Rochas, D. A. Bauman   +7 more
doaj   +1 more source

Ultra-broadband photodetection based on two-dimensional layered Ta2NiSe5 with strong anisotropy and high responsivity

Materials & Design, 2021
Broadband photodetectors have attracted substantial attention in recent years. The ternary chalcogenide Ta2NiSe5 is a layered material with a direct narrow-band gap (Eg ~ 0.33 eV) which possesses greatly potential to broadband photodetectors.
Yan Zhang, Wenzhi Yu, Jie Li, Jie Chen, Zhuo Dong, Liu Xie, Chang Li, Xinyao Shi, Wanlong Guo, Shenghuang Lin, Sudha Mokkapati, Kai Zhang   +11 more
doaj   +1 more source

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

In situ detection of spatial distribution information of temperature-pH-strain of sandstone cultural relics

npj Materials Degradation
To monitor in situ the temperature, pH, and micro-strain change information of sandstone artifacts in the process of oxalic acid corrosion, the temperature, pH, and micro-strain fiber Bragg grating (FBG) sensors are developed.
Changyuan Xu, Linyang Li, Rong Hu, Huihua Wu, Lingnan Kong, Nianbing Zhong, Bo Wan, Lei Wu, Dong Lai, Yuanyuan He, Yang Liu, Xiaoling Peng, Mingfu Zhao, Quanhua Xie   +13 more
doaj   +1 more source

Consistent reporting of performances in Ga2O3 UV-C photodetectors [PDF]

APL Electronic Devices
The study addresses the lack of consistency with reporting of Ga2O3 photodetector performances and assesses the impact of illumination intensity, illumination wavelength, and voltage bias on photodetector responsivity and time response.
Fabien C. P. Massabuau, Steve Reynolds, Sean Douglas, Farnaz Hadizadeh, David Nicol   +4 more
doaj   +1 more source

A Silicon Electromechanical Photodetector [PDF]

Nano Letters, 2013
Opto-mechanical systems have enabled wide-band optical frequency conversion and multi-channel all-optical radio frequency amplification. Realization of an on-chip silicon communication platform is limited by photodetectors needed to convert optical information to electrical signals for further signal processing.
Tallur, Siddharth, Bhave, Sunil A.
openaire   +3 more sources

Water Adsorption‐Induced Color Sensor: Insight Into the Sensing Mechanism and Interfacial Engineering for Improved Responsiveness

Advanced Functional Materials, EarlyView.
We report a unique color‐sensing phenomenon of a TiO2/SbSI:Sb2S3 device utilizing X‐ray absorption. Based on the revealed penetration and adsorption of water onto TiO2, we successfully improved the color response speed and sensitivity by incorporating a hydrophilic polymer interlayer, thereby opening up opportunities for photodetection applications ...
Tai Kobayashi, Ryosuke Nishikubo, Yusuke Tomiyori, Fumitaka Ishiwari, Daisuke Asakura, Eiji Hosono, Miho Kitamura, Hisao Kiuchi, Yoshihisa Harada, Akinori Saeki   +9 more
wiley   +1 more source