Dual back interface engineering optimized charge carrier dynamics in Sb2(S,Se)3 photocathodes for efficient solar hydrogen production DOI Creative Commons
Hafiz Sartaj Aziz, Tahir Imran, Munir Ahmad

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

A dual back interface engineering strategy with a MoO 2 underlayer and Au transport channel enhances charge carrier dynamics in the Mo/MoO /Au/Sb (S,Se) 3 /CdS/TiO /Pt photocathodes, achieving 32.60 mA cm −2 photocurrent 3.58% HC-STH efficiency.

Language: Английский

Engineering Ultrathin CuxS Layer on Planar Sb2S3 Photocathode to Enhance Photoelectrochemical Transformation DOI
Shuai Zhou, Lijun Zhang, Jian Li

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(32)

Published: May 16, 2024

Abstract Sb 2 S 3 has been extensively used as light absorber for photoelectrochemical cell. However, its p‐type nature may result in the formation of Schottky junction with substrates, thus hindering collection photogenerated holes. Herein, an ultrathin Cu x layer is successfully engineered bottom first time. Capitalizing on impressive electrical properties and superior optical properties, exhibits a high work function 4.90 eV, which causes upward band bending , forming hole‐transparent structure ohmic contact. The transparency enables back‐illumination /Cu platform, facilitating integration intricate catalyst layers transformation. When modified Pt nanoparticles, photocurrent density reaches −5.38 mA cm −2 at 0 V vs . RHE, marking fourfold increase compared to photocathode without layer. introducing molecular hybrid TC‐CoPc@carbon black, remarkable average −0.44 overpotential obtained CO reduction reaction, while less than −0.03 S.

Language: Английский

Citations

1
Unveiling the Dual Impact of CuI Layer and Se Content in Sb2(S, Se)3 Photocathodes for Solar Water Splitting DOI

Hao Zhe Chun,

Stener Lie, Mahmoud G. Ahmed

et al.

Solar RRL, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 14, 2024

Sb 2 (S, Se) 3 is a promising photocathode for photoelectrochemical (PEC) conversion of solar energy to hydrogen due its excellent optoelectronic properties, stability, and low toxicity. For such applications, p–i–n device architecture favorable efficient charge separation, with the p‐type layer improving hole extraction while n‐type facilitates electron injection into electrolyte evolution reaction. However, lack suitable layers depositing uniform constrains architectures PEC water splitting. In this work, various materials (e.g., NiO, CuS, CuI) are investigated. Photocathodes fabricated on CuI demonstrate superior performance improved growth absorber layer. The Se/S ratio adjusted further fine‐tune photocathode's absorption, influencing efficiency carriers’ separation. overall reaches maximum value when = 20%, achieving up 4.2 mA cm −2 stable photocurrents sustained 120 min under standard illumination conditions, highest‐reported photocurrent among S‐rich‐solution‐processed photocathodes. new avenues opened design devices.

Language: Английский

Citations

1
Fabricating High‐Efficiency Sb2(S,Se)3 Solar Cells by Novel Additive‐Assisted Longitudinal Component Engineering DOI

Qiqiang Zhu,

Weihuang Wang, Zhi‐Rong Chen

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

Abstract Antimony selenosulfide (Sb 2 (S,Se) 3 ) solar cells have achieved an efficiency of over 10.0%. However, the uncontrollable hydrothermal process makes preparing high‐quality Sb thin films a bottleneck for efficient cell. To address this problem, triethanolamine (TEA) additive is innovatively utilized to regulate reaction kinetic in work. The results show that TEA chelator can realize time‐domain control process, optimizing Se/(S+Se) elemental distribution film and shrinking bandgap offset film. Meanwhile, (021) (061) crystal orientation are enhanced harmful V Se1 defects passivated. Interestingly, uniform back surface gradient formed reduce minority carrier recombination at contact, increase photocurrent decrease diode current cells. Finally, J sc FF significantly improved by 8.6% 5.5% respectively, open‐circuit voltage deficit device reduced 44 mV, which leads 9.94% highest values sodium selenosulfate system.

Language: Английский

Citations

1
Engineering Ultrathin CuxS Layer on Planar Sb2S3 Photocathode to Enhance Photoelectrochemical Transformation DOI
Shuai Zhou, Lijun Zhang, Jian Li

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(32)

Published: May 16, 2024

Abstract Sb 2 S 3 has been extensively used as light absorber for photoelectrochemical cell. However, its p‐type nature may result in the formation of Schottky junction with substrates, thus hindering collection photogenerated holes. Herein, an ultrathin Cu x layer is successfully engineered bottom first time. Capitalizing on impressive electrical properties and superior optical properties, exhibits a high work function 4.90 eV, which causes upward band bending , forming hole‐transparent structure ohmic contact. The transparency enables back‐illumination /Cu platform, facilitating integration intricate catalyst layers transformation. When modified Pt nanoparticles, photocurrent density reaches −5.38 mA cm −2 at 0 V vs . RHE, marking fourfold increase compared to photocathode without layer. introducing molecular hybrid TC‐CoPc@carbon black, remarkable average −0.44 overpotential obtained CO reduction reaction, while less than −0.03 S.

Language: Английский

Citations

0
Hydrothermal deposition of [hk1] oriented Sb2(S,Se)3 nanorods as S-scheme heterojunction photocathode in photoelectrochemical cells DOI

Yuan-Hao Yang,

Xueling Wei,

Zhen Ma

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 357, P. 130088 - 130088

Published: Oct. 11, 2024

Language: Английский

Citations

0
Evaluating the Film Orientation and Grain Boundary of Vacuum- and Solution-Processed Sb2S3 Films toward Efficient Solar Cells DOI
Zhihao Chen, Xiao Chen, Jiacheng Zhou

et al.

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(22), P. 22536 - 22542

Published: Nov. 6, 2024

Language: Английский

Citations

0
Dual back interface engineering optimized charge carrier dynamics in Sb2(S,Se)3 photocathodes for efficient solar hydrogen production DOI Creative Commons
Hafiz Sartaj Aziz, Tahir Imran, Munir Ahmad

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

A dual back interface engineering strategy with a MoO 2 underlayer and Au transport channel enhances charge carrier dynamics in the Mo/MoO /Au/Sb (S,Se) 3 /CdS/TiO /Pt photocathodes, achieving 32.60 mA cm −2 photocurrent 3.58% HC-STH efficiency.

Language: Английский

Citations

0