CdxZn1-xS/Sb2Se3 thin film photocathode for efficient solar water splitting

Yan Li; Kang Wang; Dingwang Huang; Lintao Li; Jiahua Tao; Nabil Ahmed Abdel Ghany; Feng Jiang

doi:10.1016/j.apcatb.2020.119872

Cd_xZn_1-xS/Sb₂Se₃ thin film photocathode for efficient solar water splitting

Yan Li, Kang Wang, Dingwang Huang, Lintao Li, Jiahua Tao, Nabil Ahmed Abdel Ghany, Feng Jiang

School of Physics and Electronic Science

Research output: Contribution to journal › Article › peer-review

67 Scopus citations

Abstract

Solar water splitting is considered an ideal clean energy production method and has been increasingly studied by researchers. Here, we report a highly efficient Sb₂Se₃ photocathode using a Cd_xZn_1-xS modification layer. It was found that the ratio of Zn/Cd significantly influenced the photoelectrochemical (PEC) properties of the Pt/Cd_xZn_1-xS/Sb₂Se₃ photocathode. The Pt/Cd_xZn_1-xS/Sb₂Se₃ photocathode achieved the best photocurrent density of 17.5 mAcm⁻² at 0 V_RHE and a high HC-STH efficiency of 2.19 %. Moreover, a tandem device with a Pt/Cd_xZn_1-xS/Sb₂Se₃ photocathode and BiVO₄ photoanode was prepared for standalone solar water splitting, and this tandem device showed notable stability for over 8.5 h without obvious degradation. This research offers an effective strategy for fabricating Sb₂Se₃-based photocathodes to efficiently produce hydrogen via solar water splitting and reveals a new direction for achieving durable and high-efficiency materials for overall solar water splitting.

Original language	English
Article number	119872
Journal	Applied Catalysis B: Environmental
Volume	286
DOIs	https://doi.org/10.1016/j.apcatb.2020.119872
State	Published - 5 Jun 2021

Keywords

Buffer layer
CdZnS
SbSe
Solar water splitting
Zn/Cd ratio

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.apcatb.2020.119872

Cite this

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title = "CdxZn1-xS/Sb2Se3 thin film photocathode for efficient solar water splitting",

abstract = "Solar water splitting is considered an ideal clean energy production method and has been increasingly studied by researchers. Here, we report a highly efficient Sb2Se3 photocathode using a CdxZn1-xS modification layer. It was found that the ratio of Zn/Cd significantly influenced the photoelectrochemical (PEC) properties of the Pt/CdxZn1-xS/Sb2Se3 photocathode. The Pt/CdxZn1-xS/Sb2Se3 photocathode achieved the best photocurrent density of 17.5 mAcm−2 at 0 VRHE and a high HC-STH efficiency of 2.19 \%. Moreover, a tandem device with a Pt/CdxZn1-xS/Sb2Se3 photocathode and BiVO4 photoanode was prepared for standalone solar water splitting, and this tandem device showed notable stability for over 8.5 h without obvious degradation. This research offers an effective strategy for fabricating Sb2Se3-based photocathodes to efficiently produce hydrogen via solar water splitting and reveals a new direction for achieving durable and high-efficiency materials for overall solar water splitting.",

keywords = "Buffer layer, CdZnS, SbSe, Solar water splitting, Zn/Cd ratio",

author = "Yan Li and Kang Wang and Dingwang Huang and Lintao Li and Jiahua Tao and Ghany, \{Nabil Ahmed Abdel\} and Feng Jiang",

note = "Publisher Copyright: {\textcopyright} 2021 Elsevier B.V.",

year = "2021",

month = jun,

day = "5",

doi = "10.1016/j.apcatb.2020.119872",

language = "英语",

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T1 - CdxZn1-xS/Sb2Se3 thin film photocathode for efficient solar water splitting

AU - Li, Yan

AU - Wang, Kang

AU - Huang, Dingwang

AU - Li, Lintao

AU - Tao, Jiahua

AU - Ghany, Nabil Ahmed Abdel

AU - Jiang, Feng

PY - 2021/6/5

Y1 - 2021/6/5

N2 - Solar water splitting is considered an ideal clean energy production method and has been increasingly studied by researchers. Here, we report a highly efficient Sb2Se3 photocathode using a CdxZn1-xS modification layer. It was found that the ratio of Zn/Cd significantly influenced the photoelectrochemical (PEC) properties of the Pt/CdxZn1-xS/Sb2Se3 photocathode. The Pt/CdxZn1-xS/Sb2Se3 photocathode achieved the best photocurrent density of 17.5 mAcm−2 at 0 VRHE and a high HC-STH efficiency of 2.19 %. Moreover, a tandem device with a Pt/CdxZn1-xS/Sb2Se3 photocathode and BiVO4 photoanode was prepared for standalone solar water splitting, and this tandem device showed notable stability for over 8.5 h without obvious degradation. This research offers an effective strategy for fabricating Sb2Se3-based photocathodes to efficiently produce hydrogen via solar water splitting and reveals a new direction for achieving durable and high-efficiency materials for overall solar water splitting.

AB - Solar water splitting is considered an ideal clean energy production method and has been increasingly studied by researchers. Here, we report a highly efficient Sb2Se3 photocathode using a CdxZn1-xS modification layer. It was found that the ratio of Zn/Cd significantly influenced the photoelectrochemical (PEC) properties of the Pt/CdxZn1-xS/Sb2Se3 photocathode. The Pt/CdxZn1-xS/Sb2Se3 photocathode achieved the best photocurrent density of 17.5 mAcm−2 at 0 VRHE and a high HC-STH efficiency of 2.19 %. Moreover, a tandem device with a Pt/CdxZn1-xS/Sb2Se3 photocathode and BiVO4 photoanode was prepared for standalone solar water splitting, and this tandem device showed notable stability for over 8.5 h without obvious degradation. This research offers an effective strategy for fabricating Sb2Se3-based photocathodes to efficiently produce hydrogen via solar water splitting and reveals a new direction for achieving durable and high-efficiency materials for overall solar water splitting.

KW - Buffer layer

KW - CdZnS

KW - SbSe

KW - Solar water splitting

KW - Zn/Cd ratio

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DO - 10.1016/j.apcatb.2020.119872

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