Highly Transparent, Stretchable, and Self-Healable Ionogel for Multifunctional Sensors, Triboelectric Nanogenerator, and Wearable Fibrous Electronics
Lijie Sun , Hongfei Huang , Qiyu Ding , Yifan Guo , Wei Sun , Zhuangchun Wu , Minglin Qin , Qingbao Guan , Zhengwei You
Advanced Fiber Materials ›› 2021, Vol. 4 ›› Issue (1) : 98 -107.
Highly Transparent, Stretchable, and Self-Healable Ionogel for Multifunctional Sensors, Triboelectric Nanogenerator, and Wearable Fibrous Electronics
Ionogels with high transparency, stretchability and self-healing capability show great potential for wearable electronics. Here, a kind of highly transparent, stretchable and self-healable ionogels are designed using double physical cross-linking including hydrogen bonding and dipole–dipole interaction. Owing to the dynamic and reversible nature of the ion–dipole interaction and hydrogen bonds of polymeric chains, the ionogel possesses good self-healing capability. The multifunctional sensors for strain and temperature are fabricated based on ionogel. The ionogel can serve as strain sensor that exhibited high sensitivity [gauge factor (GF) = 3.06] and durability (1000 cycles) to a wide range of strains (0–300%). Meanwhile, the ionogel shows rapid response to temperature, due to the temperature dependence of its ionic conductivity. Furthermore, the ionogel fibers with excellent antifreezing (− 20 °C) capability are fabricated, and the fibers show the good sensing performance to human motions and temperature. Importantly, the antifreezing ionogel-based triboelectric nanogenerator (ITENG) is assembled for efficient energy harvesting. The ITENG shows a short circuit current (I SC) of 6.1 μA, open circuit voltage (V OC) of 115 V, and instantaneous peak power density of 334 mW m−2. This work provides a new strategy to design ionogels for the advancement of wearable electronics.
National Natural Science Foundation of China(21991123)
Natural Science Foundation of Shanghai(20ZR1402500)
Belt & Road Young Scientist Exchanges Project of Science and Technology Commission Foundation of Shanghai(20520741000)
Shanghai Belt and Road Joint Laboratory of Advanced Fiber and Low-dimension Materials (Donghua University)(18520750400)
Fundamental Research Funds for the Central Universities(2232021G-02)
DHU Distinguished Young Professor Program(LZA2019001)
Science and Technology Commission of Shanghai(17DZ2260100)
Shanghai Rising-Star Program
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