基于量子点掺杂聚合物光纤的温度传感研究 (特邀)

doi:10.3969/j.issn.1007-5461.2025.04.008

量子电子学报 ›› 2025, Vol. 42 ›› Issue (4): 526-536.doi: 10.3969/j.issn.1007-5461.2025.04.008

• “量子精密测量与应用” 专辑 • 上一篇下一篇

基于量子点掺杂聚合物光纤的温度传感研究 (特邀)

许汪洋 1, 杨同坤 1, 李良晔 1, 李豪 1, 孙琪真 1,2,3*

1 华中科技大学光学与电子信息学院, 湖北武汉 430074; 2 华中科技大学无锡研究院, 无锡江苏 214174; 3 华中科技大学引力中心, 湖北武汉 430074

收稿日期:2025-02-17 修回日期:2025-03-17 出版日期:2025-07-28 发布日期:2025-07-28
通讯作者: E-mail: qzsun@mail.hust.edu.cn E-mail: E-mail: qzsun@mail.hust.edu.cn
作者简介:许汪洋 ( 2000 - ), 湖北武汉人, 研究生, 主要从事聚合物光纤方面的研究。E-mail: wangyangxu@hust.edu.cn
基金资助:
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)

Research on temperature sensing based on quantum dot⁃doped polymer optical fibers

XU Wangyang 1 , YANG Tongkun 1 , LI Liangye 1 , LI Hao 1 , SUN Qizhen 1,2,3*

1 School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China; 2 Huazhong University of Science and Technology-Wuxi Research Institute, Wuxi, 214174, China; 3 National Precise Gravity Measurement Facility & School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China

Received:2025-02-17 Revised:2025-03-17 Published:2025-07-28 Online:2025-07-28

摘要/Abstract

摘要： 本研究提出了一种有机无机杂化钙钛矿量子点掺杂的聚合物光纤, 用于高保形交互场景中快速灵敏的温度感知。该聚合物光纤用高折射率聚二甲基硅氧烷 (PDMS) 封装甲基铵三溴化铅 (MAPbBr3) 作为纤芯以增强 MAPbBr3量子点的稳定性, 同时以低折射率PDMS作为包层来提高传感器光致荧光收集效率。实验结果表明: 聚合物光纤的直径可达1120 µm, 断裂应变超过150%, 机械强度超过2.84 MPa, 具备小型化和可拉伸的特点; 该传感器利用MAPbBr3量子点的荧光淬灭效率对温度的依赖性, 在25 ℃~85 ℃范围内表现出−1.314%℃−1 的温度灵敏度, 响应时间仅为4.5 s; 最后开展了人体不同部位体温检测研究, 成功验证了该传感器快速灵敏感知温度变化的能力。研究结果为后续实现一种低成本、易于制备、实时监测人体体温的可穿戴设备提供了一定的基础。

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

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.

Key words: spectroscopy, polymer optical fiber, chalcogenide quantum dots, fluorescence quenching, temperature detection

中图分类号:

O433.4

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 (特邀)[J]. 量子电子学报, 2025, 42(4): 526-536.

XU Wangyang , YANG Tongkun , LI Liangye , LI Hao , SUN Qizhen , . Research on temperature sensing based on quantum dot⁃doped polymer optical fibers[J]. Chinese Journal of Quantum Electronics, 2025, 42(4): 526-536.

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基于量子点掺杂聚合物光纤的温度传感研究 (特邀)

Research on temperature sensing based on quantum dot⁃doped polymer optical fibers

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