量子电子学报2025，Vol.42Issue(4)：526-536,11.DOI:10.3969/j.issn.1007-5461.2025.04.008
基于量子点掺杂聚合物光纤的温度传感研究
Research on temperature sensing based on quantum dot-doped polymer optical fibers
摘要
Abstract
This study proposes a kind of polymer optical fiber doped with organic-inorganic hybrid perovskite quantum dots for rapid and sensitive temperature sensing in high-conformity interactive scenarios.In the polymer optical fiber,methylammonium lead bromide(MAPbBr3)is encapsulated as the core with high-refractive-index polydimethylsiloxane(PDMS),to enhance the stability of MAPbBr3 quantum dots,and at the same time,low-refractive-index PDMS is used as the cladding to improve the sensor's photoluminescence collection efficiency.The experimental results show that the polymer optical fiber has a diameter of up to 1120 µm,a fracture strain exceeding 150%,and a mechanical strength exceeding 2.84 MPa,exhibiting characteristics of miniaturization and stretchability.The sensor leverages the temperature dependence of the fluorescence quenching efficiency of MAPbBr3 quantum dots,demonstrating a temperature sensitivity of-1.314%℃-1 within the range of 25℃-85℃,with a response time of only 4.5 s.Finally,studies on body temperature detection at different parts of the human body successfully validate the sensor's capability for rapid and sensitive temperature change detection.The research results provide a foundation for the subsequent realization of a low-cost,easy-to-fabricate,wearable device for real-time monitoring human body temperature.关键词
光谱学/聚合物光纤/钙钛矿量子点/荧光淬灭/温度检测Key words
spectroscopy/polymer optical fiber/chalcogenide quantum dots/fluorescence quenching/temperature detection分类
数理科学引用本文复制引用
许汪洋,杨同坤,李良晔,李豪,孙琪真..基于量子点掺杂聚合物光纤的温度传感研究[J].量子电子学报,2025,42(4):526-536,11.基金项目
青年科学基金项目(A类)(62425505),中央高校基本科研业务费专项资金资助(2024BRA012) （A类）
