Force-driven moisture-mediated CsPbBr3 nanocrystallization from amorphous glass

IF 6.8 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Science China Materials Pub Date : 2024-08-08 DOI:10.1007/s40843-024-2954-0

Peng Gao (, ), Hang Lin (, ), Pengfei Wang (, ), Ming Liu (, ), Ju Xu (, ), Yao Cheng (, ), Yuansheng Wang (, )

{"title":"Force-driven moisture-mediated CsPbBr3 nanocrystallization from amorphous glass","authors":"Peng Gao \n (, ), Hang Lin \n (, ), Pengfei Wang \n (, ), Ming Liu \n (, ), Ju Xu \n (, ), Yao Cheng \n (, ), Yuansheng Wang \n (, )","doi":"10.1007/s40843-024-2954-0","DOIUrl":null,"url":null,"abstract":"<div><p>While the “amorphous to crystalline” transformation process, which has significant potential for application, has been widely studied, the microscopic mechanism on the nanometer scale is not fully understood. In contrast to common heat-driven phase transformations, the present study demonstrated the force-driven moisture-mediated nanocrystallization of perovskite CsPbBr<sub>3</sub> precipitated from a glass matrix. In the present case, the breakage of the glass network under shearing force produces high-energy sites to absorb H<sub>2</sub>O molecules/clusters from ambient moisture, and the hydration process promotes the crystallization process. Microscratch analysis combined with confocal laser scanning microscopy revealed that the distribution of CsPbBr<sub>3</sub> nanocrystals almost reproduced that of the localized stress field and clearly reflected the crack propagation pathways. The potential applications of perovskite glass in the optical sensing of force and moisture are also explored. Our findings provide insight into crystal nucleation/growth in glass, as well as understanding the dynamics of crack propagation during the brittle fracture process.\n</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":773,"journal":{"name":"Science China Materials","volume":"67 10","pages":"3106 - 3114"},"PeriodicalIF":6.8000,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Science China Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s40843-024-2954-0","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

While the “amorphous to crystalline” transformation process, which has significant potential for application, has been widely studied, the microscopic mechanism on the nanometer scale is not fully understood. In contrast to common heat-driven phase transformations, the present study demonstrated the force-driven moisture-mediated nanocrystallization of perovskite CsPbBr₃ precipitated from a glass matrix. In the present case, the breakage of the glass network under shearing force produces high-energy sites to absorb H₂O molecules/clusters from ambient moisture, and the hydration process promotes the crystallization process. Microscratch analysis combined with confocal laser scanning microscopy revealed that the distribution of CsPbBr₃ nanocrystals almost reproduced that of the localized stress field and clearly reflected the crack propagation pathways. The potential applications of perovskite glass in the optical sensing of force and moisture are also explored. Our findings provide insight into crystal nucleation/growth in glass, as well as understanding the dynamics of crack propagation during the brittle fracture process.

Abstract Image

查看原文本刊更多论文

非晶态玻璃在湿气介导下的力驱动硒硼砂纳米结晶

虽然 "非晶到晶体 "的转变过程具有巨大的应用潜力，已被广泛研究，但纳米尺度上的微观机制尚未完全清楚。与常见的热驱动相变不同，本研究证明了从玻璃基质中析出的过氧化物锰硼砂的力驱动水分介导的纳米结晶。在本案例中，玻璃网络在剪切力作用下断裂，产生高能位点吸收来自环境湿度的 H2O 分子/簇，水合过程促进了结晶过程。结合共焦激光扫描显微镜进行的显微划痕分析表明，CsPbBr3 纳米晶体的分布几乎再现了局部应力场的分布，并清晰地反映了裂纹的传播途径。我们还探讨了包晶玻璃在力和湿度光学传感方面的潜在应用。我们的研究结果有助于深入了解玻璃中晶体的成核/生长，以及脆性断裂过程中裂纹扩展的动态。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Science China Materials Materials Science-General Materials Science

CiteScore

11.40

自引率

7.40%

发文量

949

期刊介绍： Science China Materials (SCM) is a globally peer-reviewed journal that covers all facets of materials science. It is supervised by the Chinese Academy of Sciences and co-sponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China. The journal is jointly published monthly in both printed and electronic forms by Science China Press and Springer. The aim of SCM is to encourage communication of high-quality, innovative research results at the cutting-edge interface of materials science with chemistry, physics, biology, and engineering. It focuses on breakthroughs from around the world and aims to become a world-leading academic journal for materials science.