Bionic Microstructure-Inspired Dual-Mode Flexible Sensor with Photothermal Effect for Ultrasensitive Temperature and Strain Monitoring

被引：0

作者：

Guo, Xiaohui ^{[1
]}

Niu, Yongzheng ^{[1
]}

Yin, Zhihao ^{[1
]}

Wang, Di ^{[2
,3
]}

Liu, Long ^{[2
,3
]}

Tang, Yongming ^{[1
]}

Li, Xianghui ^{[1
]}

Zhang, Yifang ^{[2
,3
]}

Li, Yu ^{[2
,3
]}

Zhang, Tianxu ^{[1
]}

Zhu, Xiaowen ^{[1
]}

Xu, Yiman ^{[1
]}

Zhang, Ziwen ^{[1
]}

Ding, Siwen ^{[1
]}

Wang, Dandan ^{[4
]}

Yang, Bing ^{[4
]}

Mai, Zhihong ^{[4
]}

Hong, Weiqiang ^{[1
,5
,6
]}

Xu, Wenrui ^{[7
]}

Hong, Qi ^{[1
]}

Zhao, Yunong ^{[1
]}

Yan, Feng ^{[8
]}

Wang, Ming ^{[9
]}

Xing, Guozhong ^{[2
,3
]}

机构：

[1] Anhui Univ, Sch Integrated Circuits, Key Lab Intelligent Comp & Signal Proc, Minist Educ, Hefei 230601, Peoples R China

[2] Chinese Acad Sci, Inst Microelect, Key Lab Fabricat Technol Integrated Circuits, Beijing 100029, Peoples R China

[3] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[4] JFS Lab, Wuhan 430206, Hubei, Peoples R China

[5] Dalian Univ Technol, State Key Lab High Performance Precis Mfg, Dalian 116024, Peoples R China

[6] Dalian Univ Technol, Key Lab Micro Nano Technol & Syst Liaoning Prov, Dalian 116024, Peoples R China

[7] Huadong Photoelectron IC Inst, Bengbu 233030, Anhui, Peoples R China

[8] Arizona State Univ, Sch Engn Matter Transport & Energy, Tempe, AZ 85287 USA

[9] Fudan Univ, Frontier Inst Chip & Syst, Zhangjiang Fudan Int Innovat Ctr, State Key Lab Integrated Chips & Syst, Shanghai 200433, Peoples R China

来源：

ADVANCED MATERIALS TECHNOLOGIES | 2024年 / 9卷 / 23期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

bionic structure; dual-mode sensing; intelligent sensing system; photothermal effect; thermochromic color change; FILMS;

D O I：

10.1002/admt.202400701

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Flexible dual-mode sensors play a pivotal role in information exchange between humans and the environment. However, achieving dual-mode sensing encompassing both flexibility and stretchability, while accurately quantifying stimulus signals such as temperature, remains a significant challenge. This paper presents a novel flexible dual-mode strain/temperature sensor (DMSTS) that utilizes graphite powder (GR)/polyaniline (PANI)/silicone rubber composites, inspired by the bionic microstructure of a centipede's foot. The DMSTS exhibits an exceptional strain detection range (approximate to 177%), and a low limit of detection (0.5% strain). Regarding temperature sensing, the DMSTS demonstrates a positive temperature coefficient effect within the range of 25-90 degrees C, with an ultrahigh sensitivity of 10.3 within the 75-90 degrees C range. Leveraging the photothermal characteristics of GR and PANI, the DMSTS holds significant promise for applications in human motion detection, infrared imaging, and photothermal effects. When integrated into an intelligent sensing system, it enables dynamic noncontact temperature measurement, human micro-expression detection, and motion joint monitoring. Additionally, by incorporating a flexible thermochromic film with color-changing ink, the DMSTS transforms temperature detection into a visually intuitive operation. With its versatile dual-mode sensing capabilities, the DMSTS exhibits substantial potential in the fields of wearable electronics and healthcare. This paper introduces a novel flexible dual-mode strain/temperature sensor using GR/PANI/silicone rubber composites, inspired by a centipede's foot. It detects strains up to 177% with a 0.5% limit of detection and shows high sensitivity (10.3) for temperatures from 75 to 90 degrees C. Integrated with a thermochromic film, it enables intuitive temperature monitoring and holds promise for wearable electronics and healthcare applications. image

引用

页数：11