Abstract
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 (ISC) of 6.1 μA, open circuit voltage (VOC) 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.
Graphic Abstract
Similar content being viewed by others
References
Tan YJ, Godaba H, Chen G, Tan STM, Wan G, Li G, Lee PM, Cai Y, Li S, Shepherd RF, Ho JS, Tee BCK. A transparent, self-healing and high-kappa dielectric for low-field-emission stretchable optoelectronics. Nat Mater. 2020;19:182–8.
Wang S, Oh JY, Xu J, Tran H, Bao Z. Skin-inspired electronics: an emerging paradigm. Acc Chem Res. 2018;51:1033–45.
Kang J, Tok JBH, Bao Z. Self-healing soft electronics. Nat Electron. 2019;2:144–50.
You I, Mackanic DG, Matsuhisa N, Kang J, Kwon J, Beker L, Mun J, Suh W, Kim TY, Tok JBH, Bao Z, Jeong U. Artificial multimodal receptors based on ion relaxation dynamics. Science. 2020;370:961–5.
Cao Z, Liu H, Jiang L. Transparent, mechanically robust, and ultrastable ionogels enabled by hydrogen bonding between elastomers and ionic liquids. Mater Horiz. 2020;7:912–8.
Pan S, Liu Z, Wang M, Jiang Y, Luo Y, Wan C, Qi D, Wang C, Ge X, Chen X. Mechanocombinatorially screening sensitivity of stretchable strain sensors. Adv Mater. 2019;31:e1903130.
Pan S, Zhang F, Cai P, Wang M, He K, Luo Y, Li Z, Chen G, Ji S, Liu Z, Loh XJ, Chen X. Mechanically interlocked hydrogel–elastomer hybrids for on-skin electronics. Adv Funct Mater. 2020;30:1909540.
Park S, Parida K, Lee PS. Deformable and transparent ionic and electronic conductors for soft energy devices. Adv Energy Mater. 2017;7:1701369.
Pu X, Liu M, Chen X, Sun J, Du C, Zhang Y, Zhai J, Hu W, Wang ZL. Ultrastretchable, transparent triboelectric nanogenerator as electronic skin for biomechanical energy harvesting and tactile sensing. Sci Adv. 2017;3:e1700015.
Qu X, Niu W, Wang R, Li Z, Guo Y, Liu X, Sun J. Solid-state and liquid-free elastomeric ionic conductors with autonomous self-healing ability. Mater Horiz. 2020;7:2994–3004.
Ren Y, Guo J, Liu Z, Sun Z, Wu Y, Liu L, Yan F. Ionic liquid–based click-ionogels. Sci Adv. 2019;5:eaax0648.
Sun JY, Keplinger C, Whitesides GM, Suo Z. Ionic skin. Adv Mater. 2014;26:7608–14.
Yang C, Suo Z. Hydrogel ionotronics. Nat Rev Mater. 2018;3:125–42.
Zhang X, Sheng N, Wang L, Tan Y, Liu C, Xia Y, Nie Z, Sui K. Supramolecular nanofibrillar hydrogels as highly stretchable, elastic and sensitive ionic sensors. Mater Horiz. 2019;6:326–33.
Lei Z, Wu P. Adaptable polyionic elastomers with multiple sensations and entropy-driven actuations for prosthetic skins and neuromuscular systems. Mater Horiz. 2019;6:538–45.
Kim YS, Liu M, Ishida Y, Ebina Y, Osada M, Sasaki T, Hikima T, Takata M, Aida T. Thermoresponsive actuation enabled by permittivity switching in an electrostatically anisotropic hydrogel. Nat Mater. 2015;14:1002–7.
Lee Y, Cha SH, Kim YW, Choi D, Sun JY. Transparent and attachable ionic communicators based on self-cleanable triboelectric nanogenerators. Nat Commun. 2018;9:1804.
Zhang LM, He Y, Cheng S, Sheng H, Dai K, Zheng WJ, Wang MX, Chen ZS, Chen YM, Suo Z. Self-healing, adhesive, and highly stretchable ionogel as a strain sensor for extremely large deformation. Small. 2019;15:1804651.
Bai Y, Chen B, Xiang F, Zhou J, Wang H, Suo Z. Transparent hydrogel with enhanced water retention capacity by introducing highly hydratable salt. Appl Phys Lett. 2014;105:151903.
Sun J, Lu G, Zhou J, Yuan Y, Zhu X, Nie J. Robust physically linked double-network ionogel as a flexible bimodal sensor. ACS Appl Mater Interfaces. 2020;12:14272–9.
Kim HJ, Chen B, Suo Z, Hayward RC. Ionoelastomer junctions between polymer networks of fixed anions and cations. Science. 2020;367:773–6.
Ding Y, Zhang J, Chang L, Zhang X, Liu H, Jiang L. Preparation of high-performance ionogels with excellent transparency, good mechanical strength, and high conductivity. Adv Mater. 2017;29:1704253.
Li T, Wang Y, Li S, Liu X, Sun J. Mechanically robust, elastic, and healable ionogels for highly sensitive ultra-durable ionic skins. Adv Mater. 2020;32:e2002706.
Zhang L, Jiang D, Dong T, Das R, Pan D, Sun C, Wu Z, Zhang Q, Liu C, Guo Z. Overview of ionogels in flexible electronics. Chem Rec. 2020;20:948–67.
Zhou F, Huang H, Xiao C, Zheng S, Shi X, Qin J, Fu Q, Bao X, Feng X, Mullen K, Wu ZS. Electrochemically scalable production of fluorine-modified graphene for flexible and high-energy ionogel-based microsupercapacitors. J Am Chem Soc. 2018;140:8198–205.
Sun L, Chen S, Guo Y, Song J, Zhang L, Xiao L, Guan Q, You Z. Ionogel-based, highly stretchable, transparent, durable triboelectric nanogenerators for energy harvesting and motion sensing over a wide temperature range. Nano Energy. 2019;63:103847.
Weng D, Xu F, Li X, Li S, Li Y, Sun J. Polymeric complex-based transparent and healable ionogels with high mechanical strength and ionic conductivity as reliable strain sensors. ACS Appl Mater Interfaces. 2020;12:57477–85.
Li Z, Wang J, Hu R, Lv C, Zheng J. A highly ionic conductive, healable, and adhesive polysiloxane-supported ionogel. Macromol Rapid Commun. 2019;40:1800776.
Tamate R, Hashimoto K, Horii T, Hirasawa M, Li X, Shibayama M, Watanabe M. Self-healing micellar ion gels based on multiple hydrogen bonding. Adv Mater. 2018;30:e1802792.
Rao YL, Chortos A, Pfattner R, Lissel F, Chiu YC, Feig V, Xu J, Kurosawa T, Gu X, Wang C, He M, Chung JW, Bao Z. Stretchable self-healing polymeric dielectrics cross-linked through metal-ligand coordination. J Am Chem Soc. 2016;138:6020–7.
Li C-H, Wang C, Keplinger C, Zuo J-L, Jin L, Sun Y, Zheng P, Cao Y, Lissel F, Linder C, You X-Z, Bao Z. A highly stretchable autonomous self-healing elastomer. Nat Chem. 2016;8:618–24.
Pena-Francesch A, Jung H, Demirel MC, Sitti M. Biosynthetic self-healing materials for soft machines. Nat Mater. 2020;19:1230–5.
Trivedi TJ, Bhattacharjya D, Yu JS, Kumar A. Functionalized agarose self-healing ionogels suitable for supercapacitors. Chemsuschem. 2015;8:3294–303.
Cao Y, Morrissey TG, Acome E, Allec SI, Wong BM, Keplinger C, Wang C. A transparent, self-healing, highly stretchable ionic conductor. Adv Mater. 2017;29:1605099.
Cao Y, Tan YJ, Li S, Lee WW, Guo H, Cai Y, Wang C, Tee BCK. Self-healing electronic skins for aquatic environments. Nat Electron. 2019;2:75–82.
Fan F-R, Tian Z-Q, Lin WZ. Flexible triboelectric generator. Nano Energy. 2012;1:328–34.
Wen Z, Yang Y, Sun N, Li G, Liu Y, Chen C, Shi J, Xie L, Jiang H, Bao D, Zhuo Q, Sun X. A wrinkled pedot: Pss film based stretchable and transparent triboelectric nanogenerator for wearable energy harvesters and active motion sensors. Adv Funct Mater. 2018;28:1803684.
Gong W, Hou C, Guo Y, Zhou J, Mu J, Li Y, Zhang Q, Wang H. A wearable, fibroid, self-powered active kinematic sensor based on stretchable sheath-core structural triboelectric fibers. Nano Energy. 2017;39:673–83.
Zhao G, Zhang Y, Shi N, Liu Z, Zhang X, Wu M, Pan C, Liu H, Li L, Wang ZL. Transparent and stretchable triboelectric nanogenerator for self-powered tactile sensing. Nano Energy. 2019;59:302–10.
Ye C, Xu Q, Ren J, Ling S. Violin string inspired core-sheath silk/steel yarns for wearable triboelectric nanogenerator applications. Adv Fiber Mater. 2020;2:24–33.
Kim YM, Moon HC. Ionoskins: nonvolatile, highly transparent, ultrastretchable ionic sensory platforms for wearable electronics. Adv Funct Mater. 2019;30:1907290.
Sun J, Yuan Y, Lu G, Li L, Zhu X, Nie J. A transparent, stretchable, stable, self-adhesive ionogel-based strain sensor for human motion monitoring. J Mater Chem C. 2019;7:11244–50.
Cai Y, Shen J, Yang C-W, Wan Y, Tang H-L, Aljarb AA, Chen C, Fu J-H, Wei X, Huang K-W, Han Y, Jonas SJ, Dong X, Tung V. Mixed-dimensional mxene-hydrogel heterostructures for electronic skin sensors with ultrabroad working range. Sci Adv. 2020;6:eabb5367.
Song J, Chen S, Sun L, Guo Y, Zhang L, Wang S, Xuan H, Guan Q, You Z. Mechanically and electronically robust transparent organohydrogel fibers. Adv Mater. 2020;32:e1906994.
Agrawal RC, Pandey GP. Solid polymer electrolytes: materials designing and all-solid-state battery applications: an overview. J Phys D Appl Phys. 2008;41:223001.
Shi Q, Sun J, Hou C, Li Y, Zhang Q, Wang H. Advanced functional fiber and smart textile. Adv Fiber Mater. 2019;1:3–31.
Chen M, Wang Z, Li K, Wang X, Wei L. Elastic and stretchable functional fibers: a review of materials, fabrication methods, and applications. Adv Fiber Mater. 2021;3:1–13.
Sun H, Zhao Y, Jiao S, Wang C, Jia Y, Dai K, Zheng G, Liu C, Wan P, Shen C. Environment tolerant conductive nanocomposite organohydrogels as flexible strain sensors and power sources for sustainable electronics. Adv Funct Mater. 2021. https://doi.org/10.1002/adfm.202101696.
Bao D, Wen Z, Shi J, Xie L, Jiang H, Jiang J, Yang Y, Liao W, Sun X. An anti-freezing hydrogel based stretchable triboelectric nanogenerator for biomechanical energy harvesting at sub-zero temperature. J Mater Chem A. 2020;8:13787–94.
Acknowledgements
This work was supported by the National Natural Science Foundation of China (21991123 and 52073049), the Natural Science Foundation of Shanghai (20ZR1402500 and 18ZR1401900), Shanghai Rising-Star Program (20520741000), Belt & Road Young Scientist Exchanges Project of Science and Technology Commission Foundation of Shanghai (20520741000), the Shanghai Belt and Road Joint Laboratory of Advanced Fiber and Low-dimension Materials (Donghua University) (18520750400), the Fundamental Research Funds for the Central Universities (2232021G-02), DHU Distinguished Young Professor Program (LZA2019001), and the Science and Technology Commission of Shanghai (17DZ2260100).
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare no competing financial interests.
Supplementary Information
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Sun, L., Huang, H., Ding, Q. et al. Highly Transparent, Stretchable, and Self-Healable Ionogel for Multifunctional Sensors, Triboelectric Nanogenerator, and Wearable Fibrous Electronics. Adv. Fiber Mater. 4, 98–107 (2022). https://doi.org/10.1007/s42765-021-00086-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s42765-021-00086-8