A Ga2O3/AlN heterojunction for self-powered solar-blind photodetection with high photo-to-dark current ratio and fast response speed

2021 ◽  
Author(s):  
Yuhua Hao ◽  
Xia Wang ◽  
Yuehua An
Keyword(s):  
Dark Current ◽  
Response Speed ◽  
Fast Response ◽  
Current Ratio ◽  
Solar Blind ◽  
Self Powered

Monodispersed hierarchical ZnGa2O4 microflowers for self-powered solar-blind detection

2016 ◽  
Vol 4 (15) ◽  
pp. 3113-3118 ◽  
Author(s):  
Yue Teng ◽  
Le Xin Song ◽  
Wei Liu ◽  
Zhe Yuan Xu ◽  
Qing Shan Wang ◽  
...  
Keyword(s):  
Response Time ◽  
Bias Voltage ◽  
Dark Current ◽  
Blind Detection ◽  
Current Ratio ◽  
Zero Bias ◽  
Single Crystalline ◽  
Short Response Time ◽  
Solar Blind ◽  
Self Powered

We successfully synthesized ZnGa2O4 microflowers self-assembled by hexagonal single-crystalline nanopetals. The ZnGa2O4 crystal exhibits improved solar-blind detection performance such as short response time, large light to dark current ratio and high photocurrent stability under zero bias voltage.

scholarly journals Solar-Blind Photodetector Based on NaTaO3/TiO2 Composite Film with Enhanced Photoelectric Performance

Coatings ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1178
Author(s):  
Min Zhang ◽  
Zhenjiang Li ◽  
Yunfei Zhao ◽  
Zhaofeng Wu ◽  
Jun Zhang ◽  
...  
Keyword(s):  
Response Time ◽  
Dark Current ◽  
High Performance ◽  
Uv Light ◽  
Fast Response ◽  
Current Ratio ◽  
Coated Glass Substrate ◽  
Ultraviolet Detectors ◽  
Photoelectric Performance ◽  
Solar Blind

In this study, ultraviolet detectors based on NaTaO3/TiO2 were fabricated with enhanced detection performance towards solar-blind (200–280 nm) light. A TiO2 seed layer was introduced and served as a buffer layer between the fluorine tin oxide (FTO)-coated glass substrate and the TiO2 film, which increased the adhesion between them. The periodic stability and photoelectric characteristics of the detectors were studied and analyzed. The detectors showed a high performance when illuminated by 265 nm and 254 nm UV light. At −15 V bias, the dark current of the detector was only 70 pA. Under the bias of −15 V and the illumination of 254 nm, the maximum photo-to-dark current ratio reached 20, and the response time was less than 300 ms. Moreover, the detector exhibited a fast response time and remained very stable after numerous testing cycles. These results demonstrate the potential application of NaTaO3/TiO2 composites in UV detection.

scholarly journals Ga2O3 Field-Effect-Transistor-Based Solar-Blind Photodetector With Fast Response and High Photo-to-Dark Current Ratio

2018 ◽  
Vol 39 (11) ◽  
pp. 1696-1699 ◽  
Author(s):  
Yaxuan Liu ◽  
Lulu Du ◽  
Guangda Liang ◽  
Wenxiang Mu ◽  
Zhitai Jia ◽  
...  
Keyword(s):  
Dark Current ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Fast Response ◽  
Current Ratio ◽  
Solar Blind ◽  
Effect Transistor

Self-powered solar-blind ZnGa2O4 UV photodetector with ultra-fast response speed

2020 ◽  
Vol 315 ◽  
pp. 112354 ◽  
Author(s):  
Dongyang Han ◽  
Kewei Liu ◽  
Qichao Hou ◽  
Xing Chen ◽  
Jialin Yang ◽  
...  
Keyword(s):  
Response Speed ◽  
Fast Response ◽  
Uv Photodetector ◽  
Solar Blind ◽  
Self Powered

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.

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.

Sign in / Sign up

Export Citation Format

Share Document