Highest Solar-to-Hydrogen Conversion Efficiency in Cu2ZnSnS4 Photocathodes and Its Directly Unbiased Solar Seawater Splitting
Highlights A novel approach, precursor seed layer engineering, is applied to prepare Cu2ZnSnS4 (CZTS) light-absorbing films using the solution-processed spin-coating method. Mo/CZTS/CdS/TiO2/Pt photocathode effectively mitigates defects in CZTS light absorber and the CZTS/CdS heterojunction interfac...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-05-01
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| Series: | Nano-Micro Letters |
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| Online Access: | https://doi.org/10.1007/s40820-025-01755-8 |
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| author | Muhammad Abbas Shuo Chen Zhidong Li Muhammad Ishaq Zhuanghao Zheng Juguang Hu Zhenghua Su Yanbo Li Liming Ding Guangxing Liang |
| author_facet | Muhammad Abbas Shuo Chen Zhidong Li Muhammad Ishaq Zhuanghao Zheng Juguang Hu Zhenghua Su Yanbo Li Liming Ding Guangxing Liang |
| author_sort | Muhammad Abbas |
| collection | DOAJ |
| description | Highlights A novel approach, precursor seed layer engineering, is applied to prepare Cu2ZnSnS4 (CZTS) light-absorbing films using the solution-processed spin-coating method. Mo/CZTS/CdS/TiO2/Pt photocathode effectively mitigates defects in CZTS light absorber and the CZTS/CdS heterojunction interface, optimizing charge carrier dynamics. Record photoelectrochemical performance including half-cell solar-to-hydrogen (HC-STH) efficiency of 9.91%, photocurrent density of 29.44 mA cm−2 at 0 V RHE in 0.5 M H2SO4 electrolyte, and STH efficiency of 2.20% in CZTS-BiVO4 tandem cell in natural seawater is achieved. |
| format | Article |
| id | doaj-art-27a0c3b642704814a835dd2d8dbd3db0 |
| institution | Kabale University |
| issn | 2311-6706 2150-5551 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nano-Micro Letters |
| spelling | doaj-art-27a0c3b642704814a835dd2d8dbd3db02025-08-20T03:43:01ZengSpringerOpenNano-Micro Letters2311-67062150-55512025-05-0117111910.1007/s40820-025-01755-8Highest Solar-to-Hydrogen Conversion Efficiency in Cu2ZnSnS4 Photocathodes and Its Directly Unbiased Solar Seawater SplittingMuhammad Abbas0Shuo Chen1Zhidong Li2Muhammad Ishaq3Zhuanghao Zheng4Juguang Hu5Zhenghua Su6Yanbo Li7Liming Ding8Guangxing Liang9Institute of Thin Film Physics and Applications, Shenzhen Key Laboratory of Advanced Thin Films and Applications, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Physics and Optoelectronic Engineering, Shenzhen UniversityInstitute of Thin Film Physics and Applications, Shenzhen Key Laboratory of Advanced Thin Films and Applications, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Physics and Optoelectronic Engineering, Shenzhen UniversityInstitute of Thin Film Physics and Applications, Shenzhen Key Laboratory of Advanced Thin Films and Applications, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Physics and Optoelectronic Engineering, Shenzhen UniversityInstitute of Thin Film Physics and Applications, Shenzhen Key Laboratory of Advanced Thin Films and Applications, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Physics and Optoelectronic Engineering, Shenzhen UniversityInstitute of Thin Film Physics and Applications, Shenzhen Key Laboratory of Advanced Thin Films and Applications, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Physics and Optoelectronic Engineering, Shenzhen UniversityInstitute of Thin Film Physics and Applications, Shenzhen Key Laboratory of Advanced Thin Films and Applications, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Physics and Optoelectronic Engineering, Shenzhen UniversityInstitute of Thin Film Physics and Applications, Shenzhen Key Laboratory of Advanced Thin Films and Applications, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Physics and Optoelectronic Engineering, Shenzhen UniversityInstitute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of ChinaSchool of Chemical Engineering and Light Industry, Guangdong University of TechnologyInstitute of Thin Film Physics and Applications, Shenzhen Key Laboratory of Advanced Thin Films and Applications, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Physics and Optoelectronic Engineering, Shenzhen UniversityHighlights A novel approach, precursor seed layer engineering, is applied to prepare Cu2ZnSnS4 (CZTS) light-absorbing films using the solution-processed spin-coating method. Mo/CZTS/CdS/TiO2/Pt photocathode effectively mitigates defects in CZTS light absorber and the CZTS/CdS heterojunction interface, optimizing charge carrier dynamics. Record photoelectrochemical performance including half-cell solar-to-hydrogen (HC-STH) efficiency of 9.91%, photocurrent density of 29.44 mA cm−2 at 0 V RHE in 0.5 M H2SO4 electrolyte, and STH efficiency of 2.20% in CZTS-BiVO4 tandem cell in natural seawater is achieved.https://doi.org/10.1007/s40820-025-01755-8Cu2ZnSnS4Solar-to-hydrogen conversionCharge transfer dynamicsPrecursor seed layer engineeringSeawater splitting |
| spellingShingle | Muhammad Abbas Shuo Chen Zhidong Li Muhammad Ishaq Zhuanghao Zheng Juguang Hu Zhenghua Su Yanbo Li Liming Ding Guangxing Liang Highest Solar-to-Hydrogen Conversion Efficiency in Cu2ZnSnS4 Photocathodes and Its Directly Unbiased Solar Seawater Splitting Nano-Micro Letters Cu2ZnSnS4 Solar-to-hydrogen conversion Charge transfer dynamics Precursor seed layer engineering Seawater splitting |
| title | Highest Solar-to-Hydrogen Conversion Efficiency in Cu2ZnSnS4 Photocathodes and Its Directly Unbiased Solar Seawater Splitting |
| title_full | Highest Solar-to-Hydrogen Conversion Efficiency in Cu2ZnSnS4 Photocathodes and Its Directly Unbiased Solar Seawater Splitting |
| title_fullStr | Highest Solar-to-Hydrogen Conversion Efficiency in Cu2ZnSnS4 Photocathodes and Its Directly Unbiased Solar Seawater Splitting |
| title_full_unstemmed | Highest Solar-to-Hydrogen Conversion Efficiency in Cu2ZnSnS4 Photocathodes and Its Directly Unbiased Solar Seawater Splitting |
| title_short | Highest Solar-to-Hydrogen Conversion Efficiency in Cu2ZnSnS4 Photocathodes and Its Directly Unbiased Solar Seawater Splitting |
| title_sort | highest solar to hydrogen conversion efficiency in cu2znsns4 photocathodes and its directly unbiased solar seawater splitting |
| topic | Cu2ZnSnS4 Solar-to-hydrogen conversion Charge transfer dynamics Precursor seed layer engineering Seawater splitting |
| url | https://doi.org/10.1007/s40820-025-01755-8 |
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