Effect of Ag/rGO on the Optical Properties of Plasmon-Modified SnO2 Composite and Its Application in Self-Powered UV Photodetector

被引：14
作者：
Abdalla, James Taban [1 ,2 ]
Wang, Jinzhong [1 ]
Wang, Dongbo [1 ]
机构：
[1] Harbin Inst Technol, Dept Optoelect Informat Sci, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
[2] Univ Juba, Sch Appl & Ind Sci, POB 80 Buluk, Juba City, South Sudan
来源：
CRYSTALS | 2019年 / 9卷 / 12期
基金：
中国国家自然科学基金; 黑龙江省自然科学基金;
关键词：
UV photodetector; surface plasmon; Ag; rGO; SnO2; nanorod; plasmon-modified-SnO2; composite; SIZE-CONTROLLED SYNTHESIS; REDUCED GRAPHENE OXIDE; SENSITIZED SOLAR-CELLS; HIGH-PERFORMANCE; SURFACE; TIO2; NANOPARTICLES; DYE; ZNO; PHOTOCATALYST;
D O I：
10.3390/cryst9120648
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
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.
引用
收藏
页数：14
相关论文
共 67 条
[1]   TiCl4 surface-treated SnO2 photoanodes for self-powered UV photodetectors and dye-sensitized solar cells [J].
Abdalla, J. T. ;
Huang, Y-W. ;
Yu, Q-J. ;
Wang, J-Z. ;
Wang, J-N. ;
Yu, C-L. ;
Gao, S-Y. ;
Jiao, S-J. ;
Wang, D-B. ;
Alarabi, A. M. ;
Abdellah, A. .
MATERIALS TECHNOLOGY, 2017, 32 (07) :443-450
[2]   sp2/sp3 bonding ratio dependence of the band-gap in graphene oxide [J].
Akbari, Ebrahim ;
Akbari, Iman ;
Ebrahimi, Mohammad Reza .
EUROPEAN PHYSICAL JOURNAL B, 2019, 92 (04)
[3]   Enhanced the UV response of AlN coated ZnO nanorods photodetector [J].
Amany, A. ;
Wang, DongBo ;
Wang, JinZhong ;
Zeng, Zhi ;
Jiao, ShuJie ;
Hao, ChunLei ;
Zhao, Yingchun ;
Xie, Yang ;
Gao, ShiYong ;
Ni, ShiMing ;
Luan, ChunYang ;
Alarabi, Alhadi ;
Taban, James ;
Zhao, LianCheng .
JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 776 :111-115
[4]   Ultrafast UV Switch Based on ZnO-Ag Heterostructures [J].
An, Xiuyun ;
Teng, Feng ;
Zhang, Zhenxing ;
Pan, Xiaojun ;
Zhou, Jinyuan ;
Xie, Erqing .
ELECTRONIC MATERIALS LETTERS, 2014, 10 (01) :95-99
[5]   Enhanced photoresponse performance of self-powered UV-visible photodetectors based on ZnO/Cu2O/electrolyte heterojunctions via graphene incorporation [J].
Bai, Zhiming ;
Liu, Jia ;
Liu, Fuxin ;
Zhang, Yinghua .
JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 726 :803-809
[6]   Synthesis and characterization of Cu doped ZnO nanoparticles for stable and fast response UV photodetector at low noise current [J].
Ben Elkamel, Imen ;
Hamdaoui, Nejeh ;
Mezni, Amine ;
Ajjel, Ridha ;
Beji, Lotfi .
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2019, 30 (10) :9444-9454
[7]   Hybrid Sputtering-Remote PECVD Deposition of Au Nanoparticles on SiO2 Layers for Surface Plasmon Resonance-Based Colored Coatings [J].
Beyene, Haile Takele ;
Tichelaar, Frans D. ;
Peeters, Paul ;
Kolev, Ivan ;
van de Sanden, Mauritius C. M. ;
Creatore, Mariadriana .
PLASMA PROCESSES AND POLYMERS, 2010, 7 (08) :657-664
[8]   Zinc oxide ultraviolet photodetectors: rapid progress from conventional to self-powered photodetectors [J].
Boruah, Buddha Deka .
NANOSCALE ADVANCES, 2019, 1 (06) :2059-2085
[9]   Spinel ZnFe2O4 nanoplates embedded with Ag clusters:: Preparation, characterization, and photocatalytic application [J].
Cao, Xuebo ;
Gu, Li ;
Lan, Xianmei ;
Zhao, Cui ;
Yao, Dan ;
Sheng, Wenjun .
MATERIALS CHEMISTRY AND PHYSICS, 2007, 106 (2-3) :175-180
[10]   Functional thin film coatings incorporating gold nanoparticles in a transparent conducting fluorine doped tin oxide matrix [J].
Chew, Clair K. T. ;
Salcianu, Carmen ;
Bishop, Peter ;
Carmalt, Claire J. ;
Parkin, Ivan P. .
JOURNAL OF MATERIALS CHEMISTRY C, 2015, 3 (05) :1118-1125
1234567