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Enhanced Charge Carrier Lifetime of TiS3 Photoanode by Introduction of S-2(2-) Vacancies for Efficient Photoelectrochemical Hydrogen Evolution
Tian, ZL; Guo, XW; Wang, D; Sun, D; Zhang, SN; Bu, KJ; Zhao, W; Huang, FQ
2020-03-21
Source PublicationADVANCED FUNCTIONAL MATERIALS
ISSN1616-301X
Issue21
SubtypeArticle
AbstractRecent advances in layered TiS3 has shown appealing potential for photoelectrochemical hydrogen evolution due to its excellent optical and electronic properties. Here, an excellent photoanode, composed of TiS3 nanoribbon arrays with moderate S-2(2-) vacancies, is proposed to achieve efficient photoelectrochemical hydrogen evolution. These unique S-2(2-) vacancies are introduced in the TiS3 photoanode by a simple vacuum re-annealing method, which is inspired by crystal structure analyses of TiS3 and TiS2. The existing S-2(2-) vacancies are revealed to significantly promote the electron conductivity, charge separation, and transport of the photoanode simultaneously. The resulting TiS3-x photoanode with approximate to 22% S-2(2-) vacancies exhibits a twofold increase in the electron diffusion length for efficient electron collection and a remarkably high photocurrent density of 15.35 mA cm(-2) at 1.4 V versus reversible hydrogen electrode.
DOI10.1002/adfm.202001286
WOS KeywordSULFUR VACANCIES ; LIGHT-ABSORPTION ; WATER ; TRISULFIDE ; NANORIBBONS ; SEMICONDUCTOR ; SEPARATION ; MONOLAYER
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/28220
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Tian, ZL,Guo, XW,Wang, D,et al. Enhanced Charge Carrier Lifetime of TiS3 Photoanode by Introduction of S-2(2-) Vacancies for Efficient Photoelectrochemical Hydrogen Evolution[J]. ADVANCED FUNCTIONAL MATERIALS,2020(21).
APA Tian, ZL.,Guo, XW.,Wang, D.,Sun, D.,Zhang, SN.,...&Huang, FQ.(2020).Enhanced Charge Carrier Lifetime of TiS3 Photoanode by Introduction of S-2(2-) Vacancies for Efficient Photoelectrochemical Hydrogen Evolution.ADVANCED FUNCTIONAL MATERIALS(21).
MLA Tian, ZL,et al."Enhanced Charge Carrier Lifetime of TiS3 Photoanode by Introduction of S-2(2-) Vacancies for Efficient Photoelectrochemical Hydrogen Evolution".ADVANCED FUNCTIONAL MATERIALS .21(2020).
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