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February 6, 2026

Enhanced Carrier Extraction and Photostability in Perovskite Solar Cells via Band-Engineered Sb 2 O x /TiO 2 Bilayer Heterojunction

Key Points

This research aims to enhance electron extraction and photostability in perovskite solar cells using a band-engineered bilayer heterojunction.
Development of band-engineered Sb2Ox/TiO2 bilayer heterojunctions.
Comparison of these heterostructures to conventional single-layer electron transport layers.
Evaluation of carrier extraction efficiency and recombination suppression at the perovskite/ETL interface.
The bilayer heterojunctions exhibited improved electron extraction compared to single-layer ETLs.
Significant reduction in recombination losses was observed.
Enhanced photostability of the perovskite solar cells was achieved.

Abstract

Efficient electron extraction and suppression of recombination at the perovskite/electron transport layer (ETL) interface are critical for high-performance perovskite solar cells (PSCs).Heterostructured ETLs, compared to conventional single-layer counterparts, provide enhanced...

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Lopa et al. (Thu,) studied this question.

synapsesocial.com/papers/698585ea8f7c464f23009bfd https://doi.org/https://doi.org/10.1039/d5nr04821d

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