Silk Fibroin Based Conductive Film for Multifunctional Sensing and Energy Harvesting

Xiaoyu Dong; Qiang Liu; Sai Liu; Ronghui Wu; Liyun Ma

doi:10.1007/s42765-022-00152-9

Advanced Fiber Materials ›› 2022, Vol. 4 ›› Issue (4) : 885 -893. DOI: 10.1007/s42765-022-00152-9

Research Article

Silk Fibroin Based Conductive Film for Multifunctional Sensing and Energy Harvesting

Xiaoyu Dong ¹^,²
, Qiang Liu ³
, Sai Liu ⁵
, Ronghui Wu ²^,⁴^,^d
, Liyun Ma ¹^,²^,^e

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¹College of Textiles and Clothing, Xinjiang University, 830046, Urumqi, People’s Republic of China

²Key Laboratory of High Performance Fibers and Products, Ministry of Education, Donghua University, 201620, Shanghai, People’s Republic of China

³College of Materials, Xiamen University, 361005, Xiamen, People’s Republic of China

⁴Department of Mechanical Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-Gil, 44919, Ulsan, Republic of Korea

⁵College of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, 310018, Hangzhou, People’s Republic of China

^d wuronghui@unist.ac.kr

^e maliyun0323@hotmail.com

Xiaoyu Dong

got her bachelor degree from the College of Textiles and Clothing in Xinjiang University. She has been engaged in the research of silk-based flexible electronics during undergraduate period and after graduation.

Qiang Liu

graduated from the College of Materials Science and Engineering of Xiamen University with a master's degree in 2019. During his master's degree, he researched on silk-based composite materials, including conductive silk fibers, conductive silk films and other advanced electronic device materials.

Sai Liu

got her Ph.D. degree from the college of textiles in Donghua University. By the third year of Ph.D. period, she visited School of Materials, University of Manchester for one year. After graduation, she has been working in College of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University. Her current research focus on auxetic textiles and flexible electronics.

Ronghui Wu

received her Ph.D. degree from the college of textiles in Donghua University. During Ph.D. period, she worked as an exchange student in Institute of Biomimetic and Soft Matter, Xiamen University (XMU). After that, she worked as a visiting scholar at Dept. of Science, National University of Singapore (NUS) in 2018. She is now a postdoc in Ulsan National Institute of Science and Technology (UNIST). Her research interests focus on silk fibroin spinning and fibrous electronics.

Liyun Ma

received her Ph.D. degree from the college of textiles in Donghua University. During Ph.D. period, she worked as an exchange student in Institute of Biomimetic and Soft Matter, Xiamen University and Beijing Institute of Nanoenergy and Nanosystems, CAS. She is now a lecturer in Xinjiang University. Her research interests focus on biomaterial, flexible materials, textile electronics etc.

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Abstract

Development of biomaterial based flexible electronics has got intensive attention owing to the potential applications in the wearable and epidermal devices. Silk fibroin, as a natural textile material with excellent performance, has been widely concerned by industry and academy. However, the property of electrical insulation limits his development in the field of flexible electronics. In this paper, a regenerated silk fibroin/carbon nanotube (RSF/CNT) conductive film has been successfully fabricated and applied in flexible capacitive-type pressure sensor and wearable triboelectric nanogenerator by a facile method. The electrical conductivity and mechanical property of RSF/CNT film was optimized by investigating with different composite ratio from 10 to 90% (W_RSF/W_CNT). The RSF/CNT film has a good photothermal response and electric heating performance. We furtherly demonstrated that the RSF/CNT based sensor can be used as epidermal self-powered sensor for multifunction human motion monitoring and Morse code compilation. The observed research results have shown that the RSF/CNT film has a wide range of potential application prospects in the wearable electronics field.

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Xiaoyu Dong, Qiang Liu, Sai Liu, Ronghui Wu, Liyun Ma. Silk Fibroin Based Conductive Film for Multifunctional Sensing and Energy Harvesting. Advanced Fiber Materials, 2022, 4(4): 885-893 DOI:10.1007/s42765-022-00152-9