Abstract
Triboelectric nanogenerator (TENG) is the new technique that can convert low-frequency mechanical energy into effective electricity. As an energy collector, the pursuit of high output characteristics is understandable. Although high charge density has been achieved by working in high vacuum or charge pumping techniques, it remains challenging to obtain the high output performance directly in the atmosphere. Herein, surface-engineering of the triboelectric layer for enhancing output performance has been reviewed carefully. By constructing surface morphology or developing surface modification, high performance of TENGs is finally presented in the review.
Highlights
Researchers have been devoting efforts towards the development of clean and renewable energy, with the increasing energy issue
The results showed that all Triboelectric nanogenerator (TENG) output performances with different micro/nano structures significantly increased, compared with TENG
The output performance of TENG was dependent upon end-functional groups of self-assembled monolayer (SAM) that formed on PDMS substrate
Summary
Researchers have been devoting efforts towards the development of clean and renewable energy, with the increasing energy issue. There have been previous works focused on materials selection [48,49,50,51,52,53,54], surface modification [41,55,56,57,58,59,60,61,62,63], and control of surface topography [64,65,66] to investigate the triboelectrification mechanism on the performance of triboelectric nanogenerators. While materials selection is dependent on choosing the triboelectric contact pairs, far apart in triboelectric series depends on which materials have opposite polarity Another way to study the triboelectrification mechanism is the control of surface topography to improve the output performance of the optimized device.
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