Highest Solar-to-Hydrogen Conversion Efficiency in Cu2ZnSnS4 Photocathodes and Its Directly Unbiased Solar Seawater Splitting (IMAGE)

Shanghai Jiao Tong University Journal Center

Highest Solar-to-Hydrogen Conversion Efficiency in Cu2ZnSnS4 Photocathodes and Its Directly Unbiased Solar Seawater Splitting

Caption

  • 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 VRHE in 0.5 M H2SO4 electrolyte, and STH efficiency of 2.20% in CZTS-BiVO4 tandem cell in natural seawater is achieved.

Credit

Muhammad Abbas, Shuo Chen, Zhidong Li, Muhammad Ishaq, Zhuanghao Zheng, Juguang Hu, Zhenghua Su, Yanbo Li, Liming Ding, Guangxing Liang.

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License

CC BY-NC-ND

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