A novel high-performance self-powered UV-vis-NIR photodetector based on a CdS nanorod array/reduced graphene oxide film heterojunction and its piezo-phototronic regulation

2018 ◽  
Vol 6 (3) ◽  
pp. 630-636 ◽  
Author(s):  
Xiang-Xiang Yu ◽  
Hong Yin ◽  
Hai-Xia Li ◽  
Han Zhao ◽  
Chong Li ◽  
...  

A high-performance self-powered piezo-phototronic effect enhanced broadband photodetector based on a CdS nanorod array/rGO film heterojunction was fabricated facilely by spin-coating.

2021 ◽  
pp. 100954
Author(s):  
Yu Zhang ◽  
Xuetao Shi ◽  
Guangcheng Zhang ◽  
Qiang Gao ◽  
Fei Huang ◽  
...  

Crystals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 648 ◽  
Author(s):  
James Taban Abdalla ◽  
Jinzhong Wang ◽  
Dongbo Wang

A facile hydrothermal method was employed to synthesize silver–reduced graphene oxide (Ag/rGO) plasmon-modified SnO2 composite, by incorporating Ag–reduced graphene oxide (Ag/rGO) into SnO2 nanorods as a photoanode for assembling a self-powered ultraviolet photodetector (UVPD). The as-synthesized samples were investigated in detail by X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectroscopy, and UV visible spectrophotometer. The as-prepared Ag/rGO films show enhanced light absorption attributed to the localized surface plasmon resonance (LSPR). The optimized 1.0 wt.% Ag/rGO incorporated into SnO2-based UVPD exhibits a significant photocurrent response due to the enhanced absorption light and effective suppression of charge recombination. This UVPD demonstrates a high performance, with photocurrent density reaching 0.29 mAcm−2 compared to the SnO2-based device with 0.16 mAcm−2. This device also exhibits a high on:off ratio of 195 and fast response time, which are superior to that of the free-modified one. In addition, the UVPD based on plasmon-modified SnO2 photoanode treated with TiCl4-aqueous solution has attained a higher photocurrent with a maximum value reaching 5.4 mAcm−2, making this device favorable in ultraviolet detection.


2016 ◽  
Vol 4 (41) ◽  
pp. 16213-16218 ◽  
Author(s):  
Mingmao Wu ◽  
Yingru Li ◽  
Bowen Yao ◽  
Ji Chen ◽  
Chun Li ◽  
...  

A flexible in-plane micro-supercapacitor fabricated by laser carving a highly conductive reduced graphene oxide film and electrochemical activation exhibits high areal specific capacitance and excellent cycling stability.


2017 ◽  
Vol 43 (7) ◽  
pp. 5374-5381 ◽  
Author(s):  
Yanhua Ding ◽  
Na Zhang ◽  
Jianyong Zhang ◽  
Xiaorui Wang ◽  
Jianqun Jin ◽  
...  

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