Flexible Fabric Temperature Sensor Based on Vo 2 /Pedot:Pss with High Performance

作者：Yuxin Wang, Yang Hong, Xiaokang Hu, Yang Ye, Peike Wang, Jingjing Luo, Ao Yin, Zhongqi Ren, Haipeng Liu, Qi Xue, Jiang Liu, Sisi He, Suzhu Yu, Jun Wei · 发表于：Advanced Materials Technologies · 年份：2023 · DOI：10.1002/admt.202300898 · 被引用次数：28 · 研究领域：Advanced Sensor and Energy Harvesting Materials、Gas Sensing Nanomaterials and Sensors、Transition Metal Oxide Nanomaterials

Long‐term effective temperature monitoring using a flexible wearable temperature sensor is critical for future health monitoring, noninvasive clinical biomonitoring, disease diagnosis, and so on. Thermistors have the merits of simple structure, ease of preparation and great sensitivity, but the preparation of thermistors with good flexibility is often at the expense of their sensitivity and requirement of high temperature. Herein, a flexible temperature sensor with stability and high sensitivity by spraying VO 2 /PEDOT:PSS composites on an SBS electrospinning substrate is reported. The sensor exhibits high thermal sensitivity (−2.712%/°C), high precision (85 mK), ultra‐fast response time (1 s) and recovery time (2.5 s), enabling accurate real‐time temperature detection and meeting the need for long‐term temperature monitoring and tracking. As a proof of concept, this sensor is applied to monitor human skin temperature, breathing rate, and temperature recognition, and as a temperature‐based input keyboard, demonstrating its tremendous potential to further develop personalized flexible sensors.