The enhancement of a self-powered UV photodetector based on vertically aligned Ag-modified ZnO nanowires

RSC Advances ◽  
2015 ◽  
Vol 5 (82) ◽  
pp. 66738-66741 ◽  
Author(s):  
Yiyu Zeng ◽  
Xinhua Pan ◽  
Wen Dai ◽  
Yunchao Chen ◽  
Zhizhen Ye
Keyword(s):  
Response Time ◽  
Fast Response ◽  
Zno Nanowires ◽  
Uv Detection ◽  
Ag Nanoparticle ◽  
Uv Detector ◽  
Excellent Performance ◽  
Uv Photodetector ◽  
Vertically Aligned ◽  
Self Powered

A Ag nanoparticle-modified ZnO NWs based UV detector displays an excellent performance in UV detection such as high responsivity and fast response time.

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 A fast response, self-powered and room temperature near infrared-terahertz photodetector based on a MAPbI3/PEDOT:PSS composite

2020 ◽  
Vol 8 (35) ◽  
pp. 12148-12154 ◽  
Author(s):  
Yifan Li ◽  
Yating Zhang ◽  
Tengteng Li ◽  
Xin Tang ◽  
Mengyao Li ◽  
...  
Keyword(s):  
Response Time ◽  
Room Temperature ◽  
Near Infrared ◽  
Fast Response ◽  
Rapid Response ◽  
Self Powered

A novel self-powered NIR and THz PTE PD based on a (MAPbI3/PEDOT:PSS) composite with a rapid response time of 28 μs.

scholarly journals Enhanced photoresponse of a high-performance self-powered UV photodetector based on ZnO nanorods and a novel electrolyte by the piezo-phototronic effect

RSC Advances ◽  
2018 ◽  
Vol 8 (58) ◽  
pp. 33174-33179 ◽  
Author(s):  
Xiaoli Peng ◽  
Weihao Wang ◽  
Yiyu Zeng ◽  
Xinhua Pan ◽  
Zhizhen Ye ◽  
...  
Keyword(s):  
High Performance ◽  
Tensile Strain ◽  
Compressive Strain ◽  
Zno Nanorods ◽  
Uv Detector ◽  
Uv Photodetector ◽  
Self Powered

A flexible UV detector exhibits high performance. The photoresponse of the device under different upward angles (tensile strain) and downward angles (compressive strain) were studied. A 163% change in responsivity was obtained when the downward angle reached 60°.

Synthesis of vertically-aligned large-area MoS2 nanofilm and its application in MoS2/Si heterostructure photodetector

2021 ◽  
Author(s):  
Yong Lei ◽  
Xiao-Zhan Yang ◽  
Wenlin Feng
Keyword(s):  
Near Infrared ◽  
Transition Metal Dichalcogenides ◽  
Response Speed ◽  
Fast Response ◽  
Large Area ◽  
Potential Applications ◽  
Metal Dichalcogenides ◽  
Vertically Aligned ◽  
Deep Ultraviolet ◽  
Self Powered

Abstract Van der Waals heterostructures based on the combination of 2D transition metal dichalcogenides (TMDCs) and conventional semiconductors offer new opportunities for the next generation of optoelectronics. In this work, the sulfurization of Mo film is used to synthesize vertically-aligned MoS2 nanofilm (V-MoS2) with wafer-size and layer controllability. The V-MoS2/n-Si heterojunction was fabricated by using a 20-nm thickness V-MoS2, and the self-powered broadband photodetectors covering from deep ultraviolet to near infrared is achieved. The device shows superior responsivity (5.06 mA/W), good photodetectivity (5.36×1011 Jones) and high on/off ratio Ion/Ioff (8.31 ×103 at 254 nm). Furthermore, the V-MoS2/n-Si heterojunction device presents a fast response speed with the rise time and fall time being 54.53 ms and 97.83 ms, respectiveely. The high photoelectric performances could be attributed to the high-quality heterojunction between the V-MoS2 and n-Si. These findings suggest that the V-MoS2/n-Si heterojunction has great potential applications in the deep ultraviolet-near infrared detection field, and might be used as a part of the construction of integrated optoelectronic systems.

Vertically aligned GaN nanorod arrays/p-Si heterojunction self-powered UV photodetector with ultrahigh photoresponsivity

2020 ◽  
Vol 45 (17) ◽  
pp. 4843
Author(s):  
Yulin Zheng ◽  
Xin Tang ◽  
Yuhui Yang ◽  
Wenliang Wang ◽  
Guoqiang Li
Keyword(s):  
Nanorod Arrays ◽  
Uv Photodetector ◽  
Vertically Aligned ◽  
Self Powered

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

High sensitivity and fast response self-powered solar-blind ultraviolet photodetector with a β-Ga2O3/spiro-MeOTAD p–n heterojunction

2020 ◽  
Vol 8 (13) ◽  
pp. 4502-4509 ◽  
Author(s):  
Zuyong Yan ◽  
Shan Li ◽  
Zeng Liu ◽  
Yusong Zhi ◽  
Jie Dai ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Fast Response ◽  
Ultraviolet Photodetector ◽  
Uv Photodetector ◽  
Inorganic P ◽  
Solar Blind ◽  
Self Powered

A β-Ga2O3/spiro-MeOTAD organic–inorganic p–n heterojunction was fabricated for use in a high sensitivity and fast response self-powered solar-blind UV photodetector.

A self-powered ultraviolet photodetector based on TiO2/Ag/ZnS nanotubes with high stability and fast response

2020 ◽  
Vol 8 (4) ◽  
pp. 1353-1358 ◽  
Author(s):  
Xiang Li ◽  
Shiyong Gao ◽  
Guangning Wang ◽  
Zhikun Xu ◽  
Shujie Jiao ◽  
...  
Keyword(s):  
Ag Nanoparticles ◽  
High Stability ◽  
Room Temperature ◽  
Fast Response ◽  
Ultraviolet Photodetector ◽  
Uv Photodetector ◽  
Self Powered

Ag nanoparticles were deposited onto TiO2 nanotubes and a ZnS layer was further fabricated on the surface of the TiO2/Ag nanotubes at room temperature to form a self-powered UV photodetector.

scholarly journals Development and Empirical Investigation of a Self-Powered UV Detector Based-Microcontroller

2018 ◽  
Vol 26 (3) ◽  
pp. 318-327
Author(s):  
Haider Al-Mumen
Keyword(s):  
Low Cost ◽  
Ultra Violet ◽  
Fast Response ◽  
Nano Particles ◽  
Core Material ◽  
Uv Detector ◽  
Dye Sensitized ◽  
Color Sensors ◽  
Self Powered ◽  
Sustainable Power

Titanium dioxide Nano particles have been used as a core material for the design of low-cost sustainable power source, the dye sensitized cell. In this work, dye sensitized cell was investigated to be used as a self-powered ultra violet light detector in a data acquisition system. To enhance the detector robustness, the device was sealed using cross-linked photo resist to isolate it from the environmental effects. The detector was tested in air as well as in water to proof its characteristics in various environmental conditions. High responsivity and fast response were achieved for both discrete and continuous ultraviolet (UV) illuminations. To prove the self-powered property of the sensor, it was interfaced to a microcontroller. Our experimental results confirmed that there is no need of intermediate electronics such as signal conditioning in the interfacing circuit. Furthermore, the detector observed obvious selectivity for different light colors. This characteristic makes it candidate for the development of color sensors.

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