{"title":"Epitaxial growth of BaSnO3 film as inorganic electron transport layer for CsPbI2Br solar cell application","authors":"Lifang Xu , Linhao Zhu , Haoming Wei","doi":"10.1016/j.cplett.2024.141696","DOIUrl":null,"url":null,"abstract":"<div><div>The inorganic electron transport layer BaSnO<sub>3</sub> films were epitaxially grown on Nb:SrTiO<sub>3</sub> substrates by pulsed laser deposition. The effect of growth oxygen pressure on the oxygen vacancies in the BaSnO<sub>3</sub> was demonstrated by the X-ray photoelectron spectroscopy. The intrinsic relationship between oxygen vacancy concentration and lattice stress in the BaSnO<sub>3</sub> films was analyzed based on the X-ray diffractometer and the X-ray photoelectron spectroscopy. By adjusting the oxygen pressure, the BaSnO<sub>3</sub> films with low resistivity and high electron mobility were obtained. The optimal photoelectric conversion efficiency of CsPbI<sub>2</sub>Br solar cell with BaSnO<sub>3</sub> films as electron transport layer reached 11.71%.</div></div>","PeriodicalId":273,"journal":{"name":"Chemical Physics Letters","volume":"857 ","pages":"Article 141696"},"PeriodicalIF":2.8000,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Physics Letters","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0009261424006389","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
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%.
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.
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