DICP OpenIR
Scalable Low-Band-Gap Sb2Se3 Thin-Film Photocathodes for Efficient Visible-Near-Infrared Solar Hydrogen Evolution
Zhang, Li1; Li, Yanbo2; Li, Changli1; Chen, Qiao1; Zhen, Zhen1; Jiang, Xin1; Zhong, Miao3; Zhang, Fuxiang4; Zhu, Hongwei1
KeywordAntimony Selenide Photocatalysis Surface Modification Thin Films Water Splitting
Source PublicationACS NANO
2017-12-01
ISSN1936-0851
DOI10.1021/acsnano.7b07512
Volume11Issue:12Pages:12753-12763
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS KeywordENHANCED WATER OXIDATION ; SIMULATED SUNLIGHT ; ENERGY-CONVERSION ; PARTICLE TRANSFER ; GRAIN-BOUNDARIES ; ATOMIC LAYER ; PHOTOANODES ; CELLS ; CATALYST ; TIO2
AbstractA highly efficient low-band-gap (1.2-0.8 eV) photoelectrode is critical for accomplishing efficient conversion of visible-near-infrared sunlight into storable hydrogen. Herein, we report an Sb2Se3 polycrystalline thin-film photocathode having a low band gap (1.2-1.1 eV) for efficient hydrogen evolution for wide solar-spectrum utilization. The photocathode was fabricated by a facile thermal evaporation of a single Sb2Se3 powder source onto the Mo-coated soda-lime glass substrate, followed by annealing under Se vapor and surface modification with an antiphotocorrosive CdS/TiO2 bilayer and Pt catalyst. The fabricated Sb2Se3(Se-annealed)/CdS/TiO2/Pt photocathode achieves a photocurrent density of ca. 8.6 mA cm(-2) at 0 V-RHE, an onset potential of ca. 0.43 V-RHE, a stable photocurrent for over 10 h, and a significant photoresponse up to the near-infrared region (ca. 1040 nm) in near-neutral pH buffered solution (pH 6.5) under AM 1.5G simulated sunlight. The obtained photoelectrochemical performance is attributed to the reliable synthesis of a micrometer-sized Sb2Se3 (Se-annealed) thin film as photoabsorber and the successful construction of an appropriate p-n heterojunction at the electrode liquid interface for effective charge separation. The demonstration of a low-band-gap and high-performance Sb2Se3 photocathode with facile fabrication might facilitate the development of cost-effective PEC devices for wide solar spectrum utilization.
Language英语
WOS IDWOS:000418990200105
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/169179
Collection中国科学院大连化学物理研究所
Corresponding AuthorZhu, Hongwei
Affiliation1.Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
2.Univ Elect Sci & Technol China, Inst Fundamental & Frontier Sci, Chengdu 610054, Sichuan, Peoples R China
3.Univ Toronto, Dept Elect & Comp Engn, 35 St George St, Toronto, ON M5S 1A4, Canada
4.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis,iChEM, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Li,Li, Yanbo,Li, Changli,et al. Scalable Low-Band-Gap Sb2Se3 Thin-Film Photocathodes for Efficient Visible-Near-Infrared Solar Hydrogen Evolution[J]. ACS NANO,2017,11(12):12753-12763.
APA Zhang, Li.,Li, Yanbo.,Li, Changli.,Chen, Qiao.,Zhen, Zhen.,...&Zhu, Hongwei.(2017).Scalable Low-Band-Gap Sb2Se3 Thin-Film Photocathodes for Efficient Visible-Near-Infrared Solar Hydrogen Evolution.ACS NANO,11(12),12753-12763.
MLA Zhang, Li,et al."Scalable Low-Band-Gap Sb2Se3 Thin-Film Photocathodes for Efficient Visible-Near-Infrared Solar Hydrogen Evolution".ACS NANO 11.12(2017):12753-12763.
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