Tan Xiaohong, Lu Heng, Zhou Yanmei, Wu Shaoru, Huang Guobin, Wang Xudong, Zeng Jingbin, Li Feiming, Cai Zhixiong, Zhang Maosheng
College of Chemistry, Chemical Engineering and Environment, Minnan Normal University Zhangzhou 363000 China.
Institute of Food Safety and Environment Monitoring, Fuzhou University Fuzhou 350108 China.
RSC Adv. 2022 Sep 14;12(38):25106-25111. doi: 10.1039/d2ra03084e. eCollection 2022 Aug 30.
Sensing temperature () has gained great attention since is the most important parameter in daily life, scientific research and industry. A ratiometric fluorescence sensor is fabricated by doping MAPbBr perovskite nanocrystals (PNCs) and rhodamine B (RhB) into a polyacrylonitrile (PAN) matrix and the composite materials are electrospun into optical fibers. The fibers show characteristic emissions at 521 and 587 nm under UV irradiation ( = 365 nm). Both emission intensities gradually increased with elevating , accompanied with a fluorescence color change from green to yellow. There is a linear relationship between fluorescence intensity ratio ( / ) and in the range of 30-45 °C. The response sensitivity is as high as 4.38% °C at 45 °C.
由于温度是日常生活、科学研究和工业中最重要的参数，温度传感自（此处原文缺失具体内容）以来受到了极大关注。通过将MAPbBr钙钛矿纳米晶体（PNCs）和罗丹明B（RhB）掺杂到聚丙烯腈（PAN）基质中制备了一种比率荧光温度传感器，并将复合材料静电纺丝成光纤。在紫外光照射（波长 = 365 nm）下，这些光纤在521和587 nm处显示出特征发射。随着温度升高，两种发射强度均逐渐增加，同时伴随着荧光颜色从绿色变为黄色。在30 - 45 °C范围内，荧光强度比（I521 / I587）与温度之间存在线性关系。在45 °C时，温度响应灵敏度高达4.38% / °C。
