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

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.

SUBMITTER: Xiong J 

PROVIDER: S-EPMC6189134 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature