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Preparation of a flexible photoanode of the photoelectrochemical ultraviolet photodetector based on rutile TiO2 nanowires and the suppressed charge recombination at solid/liquid interface
Wang, Gang1; Ji, Fanbo1; Li, Jiang1; Zhang, Xinmiao1; Wu, Hongchang1; Bai, Zhaowen1; Jin, Mengjing1; Zhou, Jinyuan1; Xie, Erqing1; Pan, Xiaojun1,2
2024-01-12
Source PublicationJOURNAL OF PHYSICS D-APPLIED PHYSICS   Impact Factor & Quartile
ISSN0022-3727
EISSN1361-6463
Volume57Issue:2
page numbers10
Abstract

Flexible ultraviolet (UV) photodetector exhibits a promising application in portable electronic gadgets, display devices and biomedical imaging. In this study, a flexible photoanode of the photoelectrochemical (PEC)-type UV photodetector based on rutile TiO2 nanowires (TiO2 NWs) grown on carbon fiber cloth is realized. In photovoltaic applications, an insulating layer is usually introduced to suppress interfacial recombination and reduce the surface trap states. The interfacial recombination of semiconductor/electrolyte is suppressed by coating an Al2O3 barrier layer on the TiO2 NWs. The photodetectors of the TiO2@Al2O3 NWs show stable photocurrent, a high light/dark current ratio (I-light/I-dark) of 1170, a faster rise and decay response times of 0.09 and 0.09 s, and excellent spectral selectivity from 300 to 400 nm. The peak responsivity of the photodetectors reaches 2.8 mA W-1 at 360 nm. This flexible photoanode have a potential application in wearable PEC UV photodetector.

KeywordPhotodetector Flexible Photoanode Solid/liquid Interface Al2o3 Barrier
PublisherIOP Publishing Ltd
DOI10.1088/1361-6463/acffd6
Indexed BySCIE
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
WOS IDWOS:001083618100001
Original Document TypeArticle
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/569289
Collection兰州大学
Corresponding AuthorPan, Xiaojun
Affiliation
1.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China;
2.Qinghai Univ, New Energy Photovolta Ind Res Ctr, Xining 810016, Peoples R China
Recommended Citation
GB/T 7714
Wang, Gang,Ji, Fanbo,Li, Jiang,et al. Preparation of a flexible photoanode of the photoelectrochemical ultraviolet photodetector based on rutile TiO2 nanowires and the suppressed charge recombination at solid/liquid interface[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2024,57(2).
APA Wang, Gang.,Ji, Fanbo.,Li, Jiang.,Zhang, Xinmiao.,Wu, Hongchang.,...&Pan, Xiaojun.(2024).Preparation of a flexible photoanode of the photoelectrochemical ultraviolet photodetector based on rutile TiO2 nanowires and the suppressed charge recombination at solid/liquid interface.JOURNAL OF PHYSICS D-APPLIED PHYSICS,57(2).
MLA Wang, Gang,et al."Preparation of a flexible photoanode of the photoelectrochemical ultraviolet photodetector based on rutile TiO2 nanowires and the suppressed charge recombination at solid/liquid interface".JOURNAL OF PHYSICS D-APPLIED PHYSICS 57.2(2024).
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