Self-powered broadband, high-detectivity and ultrafast photodetectors based on Pd-MoS2/Si heterojunctions

2016 ◽  
Vol 18 (2) ◽  
pp. 1131-1139 ◽  
Author(s):  
L. Z. Hao ◽  
W. Gao ◽  
Y. J. Liu ◽  
Y. M. Liu ◽  
Z. D. Han ◽  
...  
Keyword(s):  
Response Speed ◽  
High Responsivity ◽  
Self Powered

A self-powered photodetector based on a Pd-doped MoS2/Si heterojunction was fabricated. The device shows high detectivity, high responsivity, and an ultrafast response speed.

scholarly journals Self-Powered All-Inorganic Perovskite Photodetectors with Fast Response Speed

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Ting Zhang ◽  
Shibin Li
Keyword(s):  
High Performance ◽  
Solution Process ◽  
Response Speed ◽  
Fast Response ◽  
Single Step ◽  
Inorganic Perovskite ◽  
Perovskite Materials ◽  
Photoactive Materials ◽  
Self Powered ◽  
Solvent Processing

AbstractIn this manuscript, the inorganic perovskite CsPbI2Br and CsPbIBr2 are investigated as photoactive materials that offer higher stability than the organometal trihalide perovskite materials. The fabrication methods allow anti-solvent processing the CsPbIxBr3−x films, overcoming the poor film quality that always occur in a single-step solution process. The introduced diethyl ether in spin-coating process is demonstrated to be successful, and the effects of the anti-solvent on film quality are studied. The devices fabricated using the methods achieve high-performance, self-powered and the stabilized photodetectors show fast response speed. The results illustrate a great potential of all-inorganic CsPbIxBr3−x perovskites in visible photodetection and provide an effective way to achieve high performance devices with self-powered capability.

High performance self-powered CuZnS/GaN UV photodetectors with ultrahigh on/off ratio (3 × 108)

2021 ◽  
Vol 9 (14) ◽  
pp. 4799-4807
Author(s):  
Yong Zhang ◽  
Weidong Song
Keyword(s):  
Chemical Bath Deposition ◽  
High Performance ◽  
Response Speed ◽  
Fast Response ◽  
Uv Photodetector ◽  
Uv Photodetectors ◽  
Simple Chemical ◽  
Self Powered

P-CuZnS/n-GaN UV photodetector is prepared by a simple chemical bath deposition, showing excellent self-powered properties, including ultrahigh on/off ratio (3 × 108), fast response speed (0.14/40 ms) and large detectivity of 3 × 1013 Jones.

scholarly journals Self-powered, high response and fast response speed metal–insulator–semiconductor structured photodetector based on 2D MoS2

RSC Advances ◽  
2018 ◽  
Vol 8 (49) ◽  
pp. 28041-28047 ◽  
Author(s):  
Xinxin Liu ◽  
Feng Li ◽  
Minxuan Xu ◽  
Junjie Qi
Keyword(s):  
Response Speed ◽  
Fast Response ◽  
High Response ◽  
Metal Insulator ◽  
Metal Insulator Semiconductor ◽  
Response Recovery ◽  
Self Powered

A MIS structured self-powered photodetector of Pd/HfO2/MoS2 was fabricated by inserting a thin insulator, which has a fast response/recovery speed.

Self-powered photosensing characteristics of amorphous carbon/silicon heterostructures

RSC Advances ◽  
2016 ◽  
Vol 6 (46) ◽  
pp. 40192-40198 ◽  
Author(s):  
L. Z. Hao ◽  
Y. J. Liu ◽  
W. Gao ◽  
Z. D. Han ◽  
Z. J. Xu ◽  
...  
Keyword(s):  
Amorphous Carbon ◽  
High Stability ◽  
Response Speed ◽  
Fast Response ◽  
Self Powered ◽  
Silicon Heterostructures ◽  
Zero Voltage

A self-powered photodetector based on a a-C/Si heterojunction is fabricated. Under zero voltage, the device shows excellent photosensing characteristics with a high stability, a high detectivity and responsitivity, as well as a fast response speed.

Novel p-p Heterojunctions Self-Powered Broadband Photodetectors with Ultrafast Speed and High Responsivity

2017 ◽  
Vol 27 (38) ◽  
pp. 1703166 ◽  
Author(s):  
Pingping Yu ◽  
Kai Hu ◽  
Hongyu Chen ◽  
Lingxia Zheng ◽  
Xiaosheng Fang
Keyword(s):  
High Responsivity ◽  
Self Powered

Heterostructured TiO2/MgO nanowire arrays for self-powered UV photodetectors

RSC Advances ◽  
2016 ◽  
Vol 6 (89) ◽  
pp. 85951-85957 ◽  
Author(s):  
Shiming Ni ◽  
Qingjiang Yu ◽  
Yuewu Huang ◽  
Jianan Wang ◽  
Lin Li ◽  
...  
Keyword(s):  
Fast Response ◽  
Nanowire Arrays ◽  
Uv Photodetectors ◽  
High Responsivity ◽  
Spectral Selectivity ◽  
Self Powered

A heterostructured TiO2/MgO NWAs based UVPD exhibits a high responsivity and fast response, together with excellent spectral selectivity.

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