Flexible triboelectric nanogenerators using transparent copper nanowire electrodes: energy harvesting, sensing human activities and material recognition.

ABSTRACT: Triboelectric nanogenerators (TENGs) have emerged as a promising green technology to efficiently harvest otherwise wasted mechanical energy from the environment and human activities. However, cost-effective and reliably performing TENGs require rational integration of triboelectric materials, spacers, and electrodes. The present work reports for the first time the use of oxydation-resistant pure copper nanowires (CuNWs) as an electrode to develop a flexible, and inexpensive TENG through a potentially scalable approach involving vacuum filtration and lactic acid treatment. A ∼6 cm² device yields a remarkable open circuit voltage (V_oc) of 200 V and power density of 10.67 W m^-2 under human finger tapping. The device is robust, flexible and noncytotoxic

SUBMITTER: Bagchi B 

PROVIDER: S-EPMC10389064 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature