Results 41 to 50 of about 140,358 (312)

Spray-coated perovskite hemispherical photodetector featuring narrow-band and wide-angle imaging

Nature Communications, 2022
Sphere imagers featuring specific wavelength recognition and wide-angle imaging are required to meet the fast development of modern technology. However, it is still challenging to deposit high-quality photosensitive layers on sphere substrates from low ...
Xiaopeng Feng, Yuhong He, W. Qu, Jinmei Song, Wanting Pan, Mingrui Tan, Bai Yang, Haotong Wei   +7 more
semanticscholar   +1 more source

High-sensitivity, high-speed, broadband mid-infrared photodetector enabled by a van der Waals heterostructure with a vertical transport channel

Nature Communications
The realization of room-temperature-operated, high-performance, miniaturized, low-power-consumption and Complementary Metal-Oxide-Semiconductor (CMOS)-compatible mid-infrared photodetectors is highly desirable for next-generation optoelectronic ...
Jianfeng Wu, Jialin Zhang, Ruiqi Jiang, Hao Wu, Shouheng Chen, Xinlei Zhang, Wenhui Wang, Yuanfang Yu, Qiang Fu, Rui Lin, Yueying Cui, Tao Zhou, Zhenliang Hu, Dongyang Wan, Xiaolong Chen, Weida Hu, Hongwei Liu, Junpeng Lu, Zhenhua Ni   +18 more
semanticscholar   +1 more source

High-speed III-V nanowire photodetector monolithically integrated on Si

Nature Communications, 2020
Direct epitaxial growth of III-Vs on silicon for optical emitters and detectors is an elusive goal. Nanowires enable the local integration of high-quality III-V material, but advanced devices are hampered by their high-aspect ratio vertical geometry ...
S. Mauthe, Y. Baumgartner, M. Sousa, Q. Ding, M. Rossell, A. Schenk, L. Czornomaz, K. Moselund   +7 more
semanticscholar   +1 more source

Polarization-Sensitive Self-Powered Type-II GeSe/MoS2 Van der Waals Heterojunction Photodetector.

ACS Applied Materials and Interfaces, 2020
Polarization-sensitive photodetectors are highly desirable for high performance optical signal capture and stray light shielding in order to enhance the capability for detection and identification of targets in the dark, haze and other complex ...
Ye Xin, Xinxin Wang, Zhuo Chen, D. Weller, Yingying Wang, Li-jie Shi, Xiao Ma, Chunjie Ding, Wei Li, Shuai Guo, Ruibin Liu   +10 more
semanticscholar   +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

Conjugated Polymer (MEH-PPV:MWCNTs) Organic Nanocomposite for Photodetector Application

مجلة بغداد للعلوم, 2018
Fabrication of a photodetector consists of the conjugated polymer "MEH-PPV"- poly (2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenlenevinylene) and MEH-PPV:MWCNT nanocomposite thin film. The volume ratio investigated was 0.75:0.25.
Baghdad Science Journal
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

BER and outage probability of DPSK subcarrier intensity modulated free space optics in fully developed speckle. [PDF]

, 2009
In this paper a differential phase shift keying (DPSK) subcarrier intensity modulated (SIM) free space optical (FSO) link is considered in negative exponential atmospheric turbulence environment.
Ghassemlooy, Zabih, Leitgeb, Erich, Popoola, Wasiu Oyewole   +2 more
core   +2 more sources

Controlled Synthesis of 2D Palladium Diselenide for Sensitive Photodetector Applications

Advanced Functional Materials, 2018
Palladium diselenide (PdSe2), a thus far scarcely studied group‐10 transition metal dichalcogenide has exhibited promising potential in future optoelectronic and electronic devices due to unique structures and electrical properties.
Longhui Zeng, Di Wu, Shenghuang Lin, Chao Xie, Huiyu Yuan, W. Lu, S. Lau, Y. Chai, L. Luo, Zhong-Jun Li, Y. Tsang   +10 more
semanticscholar   +1 more source

Removing Homocoupling Defects in Alkoxy/Alkyl‐PBTTT Enhances Polymer:Fullerene Co‐Crystal Formation and Stability

Advanced Functional Materials, EarlyView.
PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu, Jochen Vanderspikken, Paola Mantegazza, Stefania Moro, Mouna Hamid, Sigurd Mertens, Niko Van den Brande, Laurence Lutsen, Vincent Lemaur, David Beljonne, Giovanni Costantini, Koen Vandewal, Bruno Van Mele, Wouter Maes, Bart Goderis   +14 more
wiley   +1 more source