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The research aims to enhance solar water splitting efficiency using engineered electron transport layers in photocathodes.

May 3, 20260 citations

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Band-bending engineering in Cu2ZnSnS4 photocathodes using a composite (Zn,Ti)O electron transport layer for solar water splitting.

SRSiyuan RenShenzhen University MAMuhammad AbbasShenzhen University ZXZhibin XieShenzhen University

Key Points

The research aims to enhance solar water splitting efficiency using engineered electron transport layers in photocathodes.
Utilized composite (Zn,Ti)O electron transport layers with Cu2ZnSnS4 photocathodes.
Measured half-cell solar-to-hydrogen efficiency (HC-STH).
Achieved a half-cell solar-to-hydrogen efficiency of 7.02%.
Demonstrated fine control of composite electron transport layers significantly improves performance.

Abstract

and a high half-cell solar-to-hydrogen efficiency (HC-STH) of 7.02%. This study demonstrates that fine control of composite ETLs is a powerful strategy to unlock the potential of CZTS and related earth-abundant absorbers for scalable solar fuel production.

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Band-bending engineering in Cu2ZnSnS4 photocathodes using a composite (Zn,Ti)O electron transport layer for solar water splitting.

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Abstract

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