A New Facile Route to Flexible and Semi-Transparent Electrodes Based on Water Exfoliated Graphene and their Single-Electrode Triboelectric Nanogenerator

Advanced Materials
Dong-Wook ShinM F Craciun

Abstract

Wearable technologies are driving current research efforts to self-powered electronics, for which novel high-performance materials such as graphene and low-cost fabrication processes are highly sought.The integration of high-quality graphene films obtained from scalable water processing approaches in emerging applications for flexible and wearable electronics is demonstrated. A novel method for the assembly of shear exfoliated graphene in water, comprising a direct transfer process assisted by evaporation of isopropyl alcohol is developed. It is shown that graphene films can be easily transferred to any target substrate such as paper, flexible polymeric sheets and fibers, glass, and Si substrates. By combining graphene as the electrode and poly(dimethylsiloxane) as the active layer, a flexible and semi-transparent triboelectric nanogenerator (TENG) is demonstrated for harvesting energy. The results constitute a new step toward the realization of energy harvesting devices that could be integrated with a wide range of wearable and flexible technologies, and opens new possibilities for the use of TENGs in many applications such as electronic skin and wearable electronics.

References

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Citations

Jun 18, 2019·Advanced Materials·Liang HuangJun Zhou
Aug 14, 2019·Advanced Science·Elias Torres AlonsoMonica F Craciun
Jun 18, 2020·Nature Communications·Darren NuttingFreddie Withers
Sep 5, 2019·Nanoscale·Benjamin T HoganAnna Baldycheva
Jan 24, 2021·International Journal of Biological Macromolecules·Lilong CaoYuping Wei

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