What question did this study set out to answer?

To investigate how different ratios of aluminum (Al) doping influence the properties of ZnO:Al electron-selective contacts for crystalline silicon solar cells.

April 12, 2026Journal of Materials Chemistry A1 citations

Influence of Al doping ratio on properties of ZnO:Al passivating contacts for crystalline silicon solar cells

PKPiyumi Kanchana KodithuwakkuAustralian National University CSChristian SamundsettAustralian National University DMDaniel MacDonaldAustralian National University

Key Points

To investigate how different ratios of aluminum (Al) doping influence the properties of ZnO:Al electron-selective contacts for crystalline silicon solar cells.
Evaluation of ZnO:Al structures with varying Al doping ratios.
Comparison of optical and electrical properties across different doping levels.
Assessment of contact performance in solar cell applications.
Higher Al doping improves optical transparency of ZnO contacts.
Optimized Al doping ratios enhance electron selectivity.
ZnO:Al contacts show potential for better performance in solar cells than traditional polysilicon contacts.

Abstract

ZnO-based electron-selective passivating contacts, with a structure analogous to conventional polysilicon passivating contacts, but offering better optical transparency, have recently emerged as a promising technology for silicon solar cell applications....

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