Development of Novel High-performance and Stable Cellulose Acetate-based Triboelectric Nanogenerator and its Application in Wearable Devices

開發新穎高性能穩定醋酸纖維素奈米摩擦發電元件及其於穿戴式裝置之應用

何鈞逸(C. Y. Ho) ； 鄭侑軒(Y. H. Cheng) ； 張志宇(C. Y. Chang)

《紡織綜合研究期刊》 32卷1期 (2022/01) Pp. 72-77

https://doi.org/10.6439/TTRJ.202201_32(1).0011

摘要

Triboelectric nanogenerator (TENG) that converts mechanical energy into electricity has been considered as an economical strategy for energy harvesting. In this study, we present a promising strategy to simultaneously enhance the performance and stability of cellulose acetate-based TENG by employing N,N-dimethylformamide (DMF) treatment. The amide functional groups can strongly interact with cellulose acetate and form desirable surface dipole, thereby improving the output performance of C-TENG. Remarkable output characteristics with open-circuit voltage (V_(oc)) of 348V and short-circuit current (I_(sc)) of 16μA are attained with DMF solvent treatment. Importantly, this strategy can also be applicable to smart textiles, which can light up 46 light-emitting diodes through human motion. More encouragingly, the resulting TENG also exhibits excellent durability, affording nearly unchanged V_(oc) over 180,000 operation cycles. Our results are very promising to accelerate the development of self-powered wearable integrated microsystems based on environmental-friendly TENG technology.

關鍵字

Cellulose acetate ； triboelectric nanogenerator ； smart fabrics