Skin-touch-actuated textile-based triboelectric nanogenerator with black phosphorus for durable biomechanical energy harvesting

Jiaqing Xiong, Peng Cui, Xiaoliang Chen, Jiangxin Wang, Kaushik Parida, Meng-Fang Lin and Pooi See Lee ()
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Jiaqing Xiong: Nanyang Technological University
Peng Cui: Nanyang Technological University
Xiaoliang Chen: Nanyang Technological University
Jiangxin Wang: Nanyang Technological University
Kaushik Parida: Nanyang Technological University
Meng-Fang Lin: Nanyang Technological University
Pooi See Lee: Nanyang Technological University

Nature Communications, 2018, vol. 9, issue 1, 1-9

Abstract: Abstract Textiles that are capable of harvesting biomechanical energy via triboelectric effects are of interest for self-powered wearable electronics. Fabrication of conformable and durable textiles with high triboelectric outputs remains challenging. Here we propose a washable skin-touch-actuated textile-based triboelectric nanogenerator for harvesting mechanical energy from both voluntary and involuntary body motions. Black phosphorus encapsulated with hydrophobic cellulose oleoyl ester nanoparticles serves as a synergetic electron-trapping coating, rendering a textile nanogenerator with long-term reliability and high triboelectricity regardless of various extreme deformations, severe washing, and extended environmental exposure. Considerably high output (~250–880 V, ~0.48–1.1 µA cm−2) can be attained upon touching by hand with a small force (~5 N) and low frequency (~4 Hz), which can power light-emitting diodes and a digital watch. This conformable all-textile-nanogenerator is incorporable onto cloths/skin to capture the low output of 60 V from subtle involuntary friction with skin, well suited for users’ motion or daily operations.

Date: 2018
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DOI: 10.1038/s41467-018-06759-0

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