Epitaxial growth of BaSnO3 film as inorganic electron transport layer for CsPbI2Br solar cell application

IF 2.8 3区化学 Q3 CHEMISTRY, PHYSICAL

Chemical Physics Letters Pub Date : 2024-10-18 DOI:10.1016/j.cplett.2024.141696

Lifang Xu , Linhao Zhu , Haoming Wei

引用次数: 0

Abstract

The inorganic electron transport layer BaSnO₃ films were epitaxially grown on Nb:SrTiO₃ substrates by pulsed laser deposition. The effect of growth oxygen pressure on the oxygen vacancies in the BaSnO₃ was demonstrated by the X-ray photoelectron spectroscopy. The intrinsic relationship between oxygen vacancy concentration and lattice stress in the BaSnO₃ films was analyzed based on the X-ray diffractometer and the X-ray photoelectron spectroscopy. By adjusting the oxygen pressure, the BaSnO₃ films with low resistivity and high electron mobility were obtained. The optimal photoelectric conversion efficiency of CsPbI₂Br solar cell with BaSnO₃ films as electron transport layer reached 11.71%.

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作为无机电子传输层的 BaSnO3 薄膜的外延生长，用于 CsPbI2Br 太阳能电池的应用

利用脉冲激光沉积法在 Nb:SrTiO3 基底上外延生长了无机电子传输层 BaSnO3 薄膜。X 射线光电子能谱证明了生长氧压对 BaSnO3 中氧空位的影响。利用 X 射线衍射仪和 X 射线光电子能谱分析了 BaSnO3 薄膜中氧空位浓度与晶格应力之间的内在关系。通过调节氧压，获得了电阻率低、电子迁移率高的 BaSnO3 薄膜。以 BaSnO3 薄膜为电子传输层的 CsPbI2Br 太阳能电池的最佳光电转换效率达到了 11.71%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical Physics Letters 化学-物理：原子、分子和化学物理

CiteScore

5.70

自引率

3.60%

发文量

798

审稿时长

33 days

期刊介绍： Chemical Physics Letters has an open access mirror journal, Chemical Physics Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Chemical Physics Letters publishes brief reports on molecules, interfaces, condensed phases, nanomaterials and nanostructures, polymers, biomolecular systems, and energy conversion and storage. Criteria for publication are quality, urgency and impact. Further, experimental results reported in the journal have direct relevance for theory, and theoretical developments or non-routine computations relate directly to experiment. Manuscripts must satisfy these criteria and should not be minor extensions of previous work.