Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 11, Issue 30, Pages 26824-26829Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b06627
Keywords
oblique microrod array; triboelectric nanogenerator; mechanical energy; energy-harvesting; wearable electronic
Funding
- NSFC [51472111, 81801847, 51603162, 51702377]
- Fundamental Research Funds for the Central Universities [JB181403, lzujbky-2018-ot04]
- National Program for Support of Top-notch Young Professionals
- National Natural Science Foundation of Shaanxi Province [2019JQ-291, 2019JQ-007]
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The rapid development of wearable electronics urgently requires a wearable energy-harvesting technology that can convert mechanical energy from body movements into electricity. In this paper, a novel structure with an oblique microrod array is employed to fabricate a high-performance textile-based wearable triboelectric nanogenerator (WTNG). The contact area of WTNGs can be efficiently enhanced when the oblique poly(dimethylsiloxane) microrods are forced to bend uniformly and slide along one direction during the working condition. The oblique microrod structure enables the WTNG to generate a short-circuit current density and an open circuit voltage reaching 3.24 mu A/cm(2) and 1014.2 V, respectively. The maximum peak power density of a WTNG reached 211.7 mu W/cm(2). Meanwhile, 48 red light-emitting diodes were simultaneously lit up by tapping a WTNG. Furthermore, the WTNG can be dressed on an elbow to continuously harvest energy from human motions as a sustainable power source. This work develops an efficient approach for enhancing the output performance of triboelectric nanogenerators and paves a promising way to power wearable electronics.
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