Dual‐Ion Directed Synergistic Doping for Regulating Film Crystallization and Carrier Dynamics in High‐Efficiency Antimony Selenosulfide Thin‐Film Solar Cells DOI

Kangjun Geng,

Junjie Dong,

Bangzhi Shen

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Май 30, 2025

Abstract Antimony selenosulfide (Sb 2 (S,Se) 3 ) has attracted significant attention in photovoltaic applications due to its excellent optoelectronic properties. However, despite the recent progress, efficiency of Sb thin‐film solar cells remains significantly lower than theoretical limit. Reducing carrier recombination and enhancing crystal orientation‐induced transport is crucial further improving device performance. In this study, a novel dual‐ion synergistic regulation strategy based on interface passivation layer soaking modification employed enhance crystallization orientation thin films. The results demonstrate that modifying aluminum oxide (Al O interfacial with sodium hydroxide (NaOH) solution effectively reduces oxygen content cadmium sulfide (CdS) surface, thereby suppressing oxygen‐induced [ hk 0] growth Moreover, for first time, study reveals doping Na Al ions regulates kinetics , leading improve transport, reduce deep‐level defect density, optimize band structure, ultimately recombination. As result, cell an 9.79% achieved under strategy.

Язык: Английский

Dual‐Ion Directed Synergistic Doping for Regulating Film Crystallization and Carrier Dynamics in High‐Efficiency Antimony Selenosulfide Thin‐Film Solar Cells DOI

Kangjun Geng,

Junjie Dong,

Bangzhi Shen

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Май 30, 2025

Abstract Antimony selenosulfide (Sb 2 (S,Se) 3 ) has attracted significant attention in photovoltaic applications due to its excellent optoelectronic properties. However, despite the recent progress, efficiency of Sb thin‐film solar cells remains significantly lower than theoretical limit. Reducing carrier recombination and enhancing crystal orientation‐induced transport is crucial further improving device performance. In this study, a novel dual‐ion synergistic regulation strategy based on interface passivation layer soaking modification employed enhance crystallization orientation thin films. The results demonstrate that modifying aluminum oxide (Al O interfacial with sodium hydroxide (NaOH) solution effectively reduces oxygen content cadmium sulfide (CdS) surface, thereby suppressing oxygen‐induced [ hk 0] growth Moreover, for first time, study reveals doping Na Al ions regulates kinetics , leading improve transport, reduce deep‐level defect density, optimize band structure, ultimately recombination. As result, cell an 9.79% achieved under strategy.

Язык: Английский

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