{"title":"钙钛矿nanocrystals@covalent有机骨架作为敏感温度传感的纳米温度计。","authors":"Huijun Liang, Xinyu Wang, Hongjun Chen","doi":"10.1039/d5ay00891c","DOIUrl":null,"url":null,"abstract":"<p><p>Perovskite nanocrystal-based temperature sensors have drawn extensive attention. Improving the photostability of perovskites and their sensitivity to temperature are urgent issues that need to be addressed. Herein, a nanothermometer for color-changing temperature indicators is designed based on perovskite nanocrystals encapsulated in a covalent organic framework (CsPbBr<sub>3</sub> NCs@COF-V). Different temperature-response fluorescence behaviors originate from the photoluminescence of CsPbBr<sub>3</sub> NCs at 522 nm. CsPbBr<sub>3</sub> NCs@COF-V achieves temperature sensing in the range of 20-89 °C and shows high potential as a thermometer for monitoring the body temperature. Significantly, spherical COF-V boosts fluorescence stability, fluorescence lifetime, and sensitivity to temperature of CsPbBr<sub>3</sub> NCs.</p>","PeriodicalId":64,"journal":{"name":"Analytical Methods","volume":" ","pages":""},"PeriodicalIF":2.7000,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Perovskite nanocrystals@covalent organic framework as a nanothermometer for sensitive temperature sensing.\",\"authors\":\"Huijun Liang, Xinyu Wang, Hongjun Chen\",\"doi\":\"10.1039/d5ay00891c\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Perovskite nanocrystal-based temperature sensors have drawn extensive attention. Improving the photostability of perovskites and their sensitivity to temperature are urgent issues that need to be addressed. Herein, a nanothermometer for color-changing temperature indicators is designed based on perovskite nanocrystals encapsulated in a covalent organic framework (CsPbBr<sub>3</sub> NCs@COF-V). Different temperature-response fluorescence behaviors originate from the photoluminescence of CsPbBr<sub>3</sub> NCs at 522 nm. CsPbBr<sub>3</sub> NCs@COF-V achieves temperature sensing in the range of 20-89 °C and shows high potential as a thermometer for monitoring the body temperature. Significantly, spherical COF-V boosts fluorescence stability, fluorescence lifetime, and sensitivity to temperature of CsPbBr<sub>3</sub> NCs.</p>\",\"PeriodicalId\":64,\"journal\":{\"name\":\"Analytical Methods\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2025-07-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Analytical Methods\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1039/d5ay00891c\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, ANALYTICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Analytical Methods","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1039/d5ay00891c","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
Perovskite nanocrystals@covalent organic framework as a nanothermometer for sensitive temperature sensing.
Perovskite nanocrystal-based temperature sensors have drawn extensive attention. Improving the photostability of perovskites and their sensitivity to temperature are urgent issues that need to be addressed. Herein, a nanothermometer for color-changing temperature indicators is designed based on perovskite nanocrystals encapsulated in a covalent organic framework (CsPbBr3 NCs@COF-V). Different temperature-response fluorescence behaviors originate from the photoluminescence of CsPbBr3 NCs at 522 nm. CsPbBr3 NCs@COF-V achieves temperature sensing in the range of 20-89 °C and shows high potential as a thermometer for monitoring the body temperature. Significantly, spherical COF-V boosts fluorescence stability, fluorescence lifetime, and sensitivity to temperature of CsPbBr3 NCs.
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