Ultralow‐Temperature SnO 2 Electron Transport Layers Fabricated by Intermediate‐Controlled Chemical Bath Deposition for Highly Efficient Perovskite Solar Cells

作者：Liguo Gao, Zhen He, Ke Zeng, Anmin Liu, Feng Jiang, Tingli Ma · 发表于：ChemSusChem · 年份：2023 · DOI：10.1002/cssc.202300765 · 被引用次数：8 · 研究领域：Perovskite Materials and Applications、Conducting polymers and applications、Quantum Dots Synthesis And Properties

Abstract As electron transport layers (ETLs) in perovskite solar cells (PSCs), tin oxide (SnO 2 ) possess high carrier mobilities with appropriate energy band alignment and high optical transmittance. Herein, SnO 2 ETLs were fabricated by intermediate‐controlled chemical bath deposition (IC‐CBD) at ultralow temperature, where the chelating agent effectively altered the nucleation and growth process. Compared with conventional CBD, SnO 2 ETLs fabricated by IC‐CBD had lower defects, smooth surface, good crystallinity, and remarkable interfacial contact with perovskite, resulting in good quality of perovskite, high photovoltaic performance (23.17 %), and enhanced stability of devices.