A Boosting Strategy of Photovoltaics by Stacking Monolayer InSe and β‐Sb into Heterostructure

Chemistry - A European Journal, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 20, 2025

Identifying two-dimensional (2D) solar photovoltaic devices with high efficiency remains an urgent challenge in addressing current energy demands. Considering the limitations of isolated 2D systems applications, most effective solution is stacking them into van der Waals heterostructures (vdWHs). However, favorable factors for photovoltaics vdWHs are still uncertain, nor their intrinsic enrichment or enhancement mechanism on being clear. Here, based typical monolayer transition metal-chalcogenide compound InSe and β-phase antimonene (Sb), we propose a boosting strategy performances by InSe/Sb vdWH. After confirming feasibility its experimental synthesis, several superior related characteristics verified than components. Including more moderately sized indirect to direct band gap, higher electron mobilities those InSe, hindrance carrier recombination due staggered type-II alignment, stronger red-shifted optical harvesting abilities because redistribution. In addition, further researches conducted additional such stacked vdWH devices. Such as photocurrent infrared light range, photoelectric conversion efficiencies visible region, quality including photon responsivity Rph${R_{ph} }$ external quantum τeqe${\tau _{eqe} components many other vdWHs. Therefore, have not only proposed potential applications photovoltaics, but formation principles alignment accompany promotion mechanisms can provide powerful theoretical guidances future design preparation high-efficiency

Language: Английский

Ultrahigh carrier mobility and multidirectional piezoelectricity in 2D Janus copper-containing chalcogenides monolayers

Physical Chemistry Chemical Physics, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 24, 2024

We predicted two 2D Janus copper-containing chalcogenide monolayers with the combination of ultrahigh carrier mobility and multidirectional piezoelectricity.

Language: Английский