Electric field-tuned band engineering and photocatalytic H ₂ evolution mechanism in ZnS/SnS ₂ and ZnSe/SnSe ₂ heterojunctions

Cuihua Zhao; X Chen; Guang Xu; Weiwei Xing; Jianhua Chen; Xi Zhou

doi:10.1039/d6ta01381c

January 1, 2026Journal of Materials Chemistry A

Electric field-tuned band engineering and photocatalytic H ₂ evolution mechanism in ZnS/SnS ₂ and ZnSe/SnSe ₂ heterojunctions

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Key Points

The study examines how electric fields influence bandgap properties and photocatalytic efficiency in ZnS/SnS2 and ZnSe/SnSe2 heterojunctions.
Investigated the effects of electric fields on bandgap and Z-scheme behavior in heterojunctions.
Analyzed efficiency changes under different field conditions.
Optimal negative fields increased STH efficiency by 1.8× for ZnS/SnS2.
Optimal negative fields increased STH efficiency by 3× for ZnSe/SnSe2.

Implication

Shows electric fields enhance photocatalytic H2 evolution in semiconductors, indicating optimal conditions for efficiency gains.

Abstract

Study show electric fields control bandgap, and Z-scheme in ZnS/SnS 2 & ZnSe/SnSe 2 . Negative fields preserve Z-scheme; positive fields cause Type-II/I transitions. Optimal negative fields boost STH efficiency 1.8× (ZnS/SnS 2 ) and 3× (ZnSe/SnSe 2 ).

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Cite This Study

Zhao et al. (2026) studied this question.

synapsesocial.com/papers/6a1fc730dee9eb8c0dce8110 https://doi.org/10.1039/d6ta01381c

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Electric field-tuned band engineering and photocatalytic H ₂ evolution mechanism in ZnS/SnS ₂ and ZnSe/SnSe ₂ heterojunctions

Key Points

Implication

Abstract

Discussion

Cite This Study

Electric field-tuned band engineering and photocatalytic H ₂ evolution mechanism in ZnS/SnS ₂ and ZnSe/SnSe ₂ heterojunctions

Key Points

Implication

Abstract

Discussion

Cite This Study

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