Polarization-Driven Control of Dynamically Tunable Solar-to-Hydrogen Conversion and On-Demand Water Splitting in 2D Janus-Ferroelectric Heterojunctions DOI
Shuli Liu, Wei Wei,

Dongqiu Zhao

и другие.

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Май 27, 2025

van der Waals heterostructures improve carrier efficiency via band engineering and interfacial design, surpassing traditional photocatalytic material limitations. However, their intrinsic electric fields are limited by work function differences, accumulation weakens field effects. Two-dimensional ferroelectric leverage spontaneous polarization dynamic tunability to optimize transport water-splitting kinetics. This study combines Janus MSSe (M = W, Mo) with α-In2Se3 monolayers create a spontaneously polarized heterojunction. Through switching (P↑ or P↓) the synergistic effects of interlayer built-in fields, alignment regulated. In α-In2Se3/MSSe Mo), P↓ suppresses photogenerated migration, reducing solar-to-hydrogen (STH) efficiency, while P↑ accelerates it, boosting STH efficiency. Furthermore, introducing vacancies adjusting enable flexible regulation reaction controllable initiation termination reaction. Our introduces novel methodology for controlling dynamics carriers through application polarization-induced thereby advancing practical implementation photocatalysts in sustainable energy production environmental remediation technologies.

Язык: Английский

Polarization-Driven Control of Dynamically Tunable Solar-to-Hydrogen Conversion and On-Demand Water Splitting in 2D Janus-Ferroelectric Heterojunctions DOI
Shuli Liu, Wei Wei,

Dongqiu Zhao

и другие.

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Май 27, 2025

van der Waals heterostructures improve carrier efficiency via band engineering and interfacial design, surpassing traditional photocatalytic material limitations. However, their intrinsic electric fields are limited by work function differences, accumulation weakens field effects. Two-dimensional ferroelectric leverage spontaneous polarization dynamic tunability to optimize transport water-splitting kinetics. This study combines Janus MSSe (M = W, Mo) with α-In2Se3 monolayers create a spontaneously polarized heterojunction. Through switching (P↑ or P↓) the synergistic effects of interlayer built-in fields, alignment regulated. In α-In2Se3/MSSe Mo), P↓ suppresses photogenerated migration, reducing solar-to-hydrogen (STH) efficiency, while P↑ accelerates it, boosting STH efficiency. Furthermore, introducing vacancies adjusting enable flexible regulation reaction controllable initiation termination reaction. Our introduces novel methodology for controlling dynamics carriers through application polarization-induced thereby advancing practical implementation photocatalysts in sustainable energy production environmental remediation technologies.

Язык: Английский

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