{"title":"Radiation behavior of Ruddlesden–Popper Srn+1TinO3n+1 (n = 1, 2, 3, and ∞): Effects of layered structure and temperature","authors":"Menghui Wang, Liangfu Zhou, Huashuai Hu, Fenghua Shen, Shijian Lin, Tongmin Zhang, Yuhong Li, Dongyan Yang","doi":"10.1111/jace.20612","DOIUrl":null,"url":null,"abstract":"<p>Ruddlesden–Popper (RP) perovskites are layer-structured derivatives of simple perovskites. In this study, the radiation behavior of RP perovskites Sr<i><sub>n</sub></i><sub>+1</sub>Ti<i><sub>n</sub></i>O<sub>3</sub><i><sub>n</sub></i><sub>+1</sub> (<i>n</i> = 1, 2, 3, and ∞) was investigated, focusing on the effects of [SrO] layers and temperatures. Under 3 MeV Xe ion irradiation at room temperature, Sr<i><sub>n</sub></i><sub>+1</sub>Ti<i><sub>n</sub></i>O<sub>3</sub><i><sub>n</sub></i><sub>+1</sub> perovskites exhibited varying degrees of amorphization and lattice swelling. As the index <i>n</i> increases or the density of [SrO] layers decreases, the radiation resistance of Sr<i><sub>n</sub></i><sub>+1</sub>Ti<i><sub>n</sub></i>O<sub>3</sub><i><sub>n</sub></i><sub>+1</sub> gradually increases, suggesting that the [SrO] layers play a significant role in the radiation behavior of RP perovskites. At high temperatures, Sr<i><sub>n</sub></i><sub>+1</sub>Ti<i><sub>n</sub></i>O<sub>3</sub><i><sub>n</sub></i><sub>+1</sub> perovskites exhibited enhanced radiation tolerance. Moreover, the typical layered Sr<i><sub>n</sub></i><sub>+1</sub>Ti<i><sub>n</sub></i>O<sub>3</sub><i><sub>n</sub></i><sub>+1</sub> (<i>n</i> = 1–3) perovskites decomposed into non-layered SrTiO<sub>3</sub> and SrO. To further elucidate these observations, annealing experiments were performed on pristine and room-temperature irradiated samples. The results confirm that the phase decomposition is caused by a combined effect of irradiation and high temperature. On the basis of the first-principles calculations, the experimental results are well interpreted within the framework of defect energetics and thermodynamic stability. This study provides insights into the mechanism governing the structural stability of RP perovskites under radiation, offering guidance for tuning the radiation resistance of complex materials.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 9","pages":""},"PeriodicalIF":3.8000,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the American Ceramic Society","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/jace.20612","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
引用次数: 0
Abstract
Ruddlesden–Popper (RP) perovskites are layer-structured derivatives of simple perovskites. In this study, the radiation behavior of RP perovskites Srn+1TinO3n+1 (n = 1, 2, 3, and ∞) was investigated, focusing on the effects of [SrO] layers and temperatures. Under 3 MeV Xe ion irradiation at room temperature, Srn+1TinO3n+1 perovskites exhibited varying degrees of amorphization and lattice swelling. As the index n increases or the density of [SrO] layers decreases, the radiation resistance of Srn+1TinO3n+1 gradually increases, suggesting that the [SrO] layers play a significant role in the radiation behavior of RP perovskites. At high temperatures, Srn+1TinO3n+1 perovskites exhibited enhanced radiation tolerance. Moreover, the typical layered Srn+1TinO3n+1 (n = 1–3) perovskites decomposed into non-layered SrTiO3 and SrO. To further elucidate these observations, annealing experiments were performed on pristine and room-temperature irradiated samples. The results confirm that the phase decomposition is caused by a combined effect of irradiation and high temperature. On the basis of the first-principles calculations, the experimental results are well interpreted within the framework of defect energetics and thermodynamic stability. This study provides insights into the mechanism governing the structural stability of RP perovskites under radiation, offering guidance for tuning the radiation resistance of complex materials.
期刊介绍：
The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials.
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