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 ◽  
...  

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.

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Ting Zhang ◽  
Shibin Li

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.


2021 ◽  
Vol 9 (14) ◽  
pp. 4799-4807
Author(s):  
Yong Zhang ◽  
Weidong Song

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.


RSC Advances ◽  
2018 ◽  
Vol 8 (49) ◽  
pp. 28041-28047 ◽  
Author(s):  
Xinxin Liu ◽  
Feng Li ◽  
Minxuan Xu ◽  
Junjie Qi

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


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 ◽  
...  

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.


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

RSC Advances ◽  
2016 ◽  
Vol 6 (89) ◽  
pp. 85951-85957 ◽  
Author(s):  
Shiming Ni ◽  
Qingjiang Yu ◽  
Yuewu Huang ◽  
Jianan Wang ◽  
Lin Li ◽  
...  

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


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