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Title:Designing atomic interface in ▫$Sb_2S_3/CdS$▫ heterojunction for efficient solar water splitting
Authors:ID Yang, Minji (Author)
ID Fan, Zeyu (Author)
ID Du, Jinyan (Author)
ID Feng, Chao (Author)
ID Li, Ronghua (Author)
ID Zhang, Beibei (Author)
ID Pastukhova, Nadiia (Author)
ID Valant, Matjaž (Author)
ID Finšgar, Matjaž (Author)
ID Mavrič, Andraž (Author)
ID Li, Yanbo (Author)
.pdf Designing_Atomic_Interface_in_Sb2S3CdS_Heterojunction_for_Efficient_Solar_Water_Splitting.pdf (4,59 MB, This file will be accessible after 09.03.2025)
Work type:Unknown
Typology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:In the emerging Sb2S3‐based solar energy conversion devices, a CdS buffer layer prepared by chemical bath deposition is commonly used to improve the separation of photogenerated electron‐hole pairs. However, the cation diffusion at the Sb2S3/CdS interface induces detrimental defects but is often overlooked. Designing a stable interface in the Sb2S3/CdS heterojunction is essential to achieve high solar energy conversion efficiency. As a proof of concept, this study reports that the modification of the Sb2S3/CdS heterojunction with an ultrathin Al2O3 interlayer effectively suppresses the interfacial defects by preventing the diffusion of Cd2+ cations into the Sb2S3 layer. As a result, a water‐splitting photocathode based on Ag:Sb2S3/Al2O3/CdS heterojunction achieves a significantly improved half‐cell solar‐to‐hydrogen efficiency of 2.78% in a neutral electrolyte, as compared to 1.66% for the control Ag:Sb2S3/CdS device. This work demonstrates the importance of designing atomic interfaces and may provide a guideline for the fabrication of high‐performance stibnite‐type semiconductor‐based solar energy conversion devices.
Keywords:alumina, defect passivation, interface engineering, photoelectrochemical water splitting
Publication status:In print
Publication version:Author Accepted Manuscript
Publication date:01.01.2024
Year of publishing:2024
Number of pages:str. 1-11
Numbering:Vol. , iss. , [article no.] 2311644
PID:20.500.12556/RUNG-8931 New window
COBISS.SI-ID:188300547 New window
ISSN on article:1613-6829
DOI:10.1002/smll.202311644 New window
Publication date in RUNG:11.03.2024
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Record is a part of a journal

Shortened title:Small
COBISS.SI-ID:512826905 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Funding programme:P2-0412
Project number:P2-0412
Name:Heterogeni procesi na površinah trdnin za trajnostne tehnologije

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:J2-2498
Name:Redukcija ogljikovega dioksida na katalizatorju z izoliranimi atomi za tvorbo spojin z dodano vrednostjo

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:Z1-3189
Name:Transportne lastnosti dvodimenzionalnih konjugiranih polimerov

Funder:ARIS - Slovenian Research and Innovation Agency
Funding programme:P2-0118
Project number:P2-0118
Name:Tekstilna kemija in napredni tekstilni materiali


Licensing start date:08.03.2024