ZnO/CuCrO2 Core-Shell Nanowire Heterostructures for Self-Powered UV Photodetectors with Fast Response

2018 ◽  
Vol 28 (43) ◽  
pp. 1803142 ◽  
Author(s):  
Thomas Cossuet ◽  
Joao Resende ◽  
Laetitia Rapenne ◽  
Odette Chaix-Pluchery ◽  
Carmen Jiménez ◽  
...  
Keyword(s):  
Fast Response ◽  
Core Shell ◽  
Uv Photodetectors ◽  
Nanowire Heterostructures ◽  
Self Powered

scholarly journals Optimal Sr-Doped Free TiO2@SrTiO3 Heterostructured Nanowire Arrays for High-Efficiency Self-Powered Photoelectrochemical UV Photodetector Applications

Crystals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 134 ◽  
Author(s):  
Shiming Ni ◽  
Fengyun Guo ◽  
Dongbo Wang ◽  
Shujie Jiao ◽  
Jinzhong Wang ◽  
...  
Keyword(s):  
High Performance ◽  
High Efficiency ◽  
Photogenerated Electron ◽  
Fast Response ◽  
Optical Signal ◽  
Nanowire Arrays ◽  
Core Shell ◽  
Uv Photodetectors ◽  
Photogenerated Electrons ◽  
Self Powered

Due to their high performance, photoelectrochemical ultraviolet (UV) photodetectors have attracted much attention, but the recombination of photogenerated electrons at the interface of photoanode/electrolyte limited further improvement of photoelectrochemical UV photodetectors (PEC UVPDs). Modification of TiO2 photoanode by SrTiO3 could improve the performance of UVPD, because the energy barrier that is established at the TiO2–SrTiO3 interface could accelerate the separation of the photogenerated electrons-holes pair. However, the recombination center that is caused by the preparation of TiO2@SrTiO3 core-shell heterostructured nanostructure decreases the performance of PEC UVPDs, which is still an important problem that hindered its application in PEC UVPDs. In this paper, we presented a Sr-doped free TiO2@SrTiO3 core-shell heterostructured nanowire arrays as a photoanode for the self-powered PEC UVPD. This will not only accelerate the separation of the photogenerated electrons-holes pair, but it will also reduce the recombination of photogenerated electron-hole pairs in the photoanode. The intrinsic effect of SrTiO3 reaction time on the J variations of UVPDs is investigated in detail. An impressive responsivity of 0.358 A W−1 was achieved at 360 nm for the UVPD based on TiO2@SrTiO3 core-shell heterostructured nanowire arrays, which heretofore is a considerably high photoresponsivity for self-powered photoelectrochemical UVPDs. Additionally, this UVPD also exhibits a high on/off ratio, fast response time, excellent visible-blind characteristic, and linear optical signal response.

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.

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.

Dual-Phase CsPbCl3–Cs4PbCl6 Perovskite Films for Self-Powered, Visible-Blind UV Photodetectors with Fast Response

2020 ◽  
Vol 12 (29) ◽  
pp. 32961-32969 ◽  
Author(s):  
Weidong Zhu ◽  
Minyu Deng ◽  
Dandan Chen ◽  
Zeyang Zhang ◽  
Wenming Chai ◽  
...  
Keyword(s):  
Fast Response ◽  
Dual Phase ◽  
Uv Photodetectors ◽  
Self Powered ◽  
Visible Blind

scholarly journals A self-powered solar-blind ultraviolet photodetector based on a Ag/ZnMgO/ZnO structure with fast response speed

RSC Advances ◽  
2017 ◽  
Vol 7 (22) ◽  
pp. 13092-13096 ◽  
Author(s):  
Ming-Ming Fan ◽  
Ke-Wei Liu ◽  
Xing Chen ◽  
Zhen-Zhong Zhang ◽  
Bing-Hui Li ◽  
...  
Keyword(s):  
Response Speed ◽  
Fast Response ◽  
Ultraviolet Photodetector ◽  
Uv Photodetectors ◽  
Solar Blind ◽  
Self Powered

Realization of Ag/ZnMgO/ZnO photodetectors provides a feasible route to develop self-powered solar-blind UV photodetectors with fast response speed.

Fabrication of a high sensitivity and fast response self-powered photosensor based on a core-shell silicon nanowire homojunction

2018 ◽  
Vol 116 ◽  
pp. 27-35 ◽  
Author(s):  
Assel A. Abdul-Hameed ◽  
M.A. Mahdi ◽  
Basil Ali ◽  
Abbas M. Selman ◽  
H.F. Al-Taay ◽  
...  
Keyword(s):  
Silicon Nanowire ◽  
High Sensitivity ◽  
Fast Response ◽  
Core Shell ◽  
Self Powered

Scalable fabrication of in-plane microscale self-powered integrated systems for fast-response and highly selective dual-channel gas detection

Nano Energy ◽  
2021 ◽  
pp. 106253
Author(s):  
Xiaoyu Shi ◽  
Junyu Chang ◽  
Jieqiong Qin ◽  
Hanqing Liu ◽  
Xiong Zhang ◽  
...  
Keyword(s):  
Fast Response ◽  
Gas Detection ◽  
Integrated Systems ◽  
Dual Channel ◽  
Self Powered
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