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Enhanced triboelectrification of the polydimethylsiloxane surface by ultraviolet irradiation

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Title
Enhanced triboelectrification of the polydimethylsiloxane surface by ultraviolet irradiation
Author(s)
Jong Hun Kim; Yun B.K.; Jung J.H.; Jeong Young Park
Publication Date
2016-03
Journal
APPLIED PHYSICS LETTERS, v.108, no.13, pp.133901 -
Publisher
AMER INST PHYSICS
Abstract
Study of the triboelectric charging effect has recently gained much attraction by proposing a new potential technical application in the field of energy harvesting. Transparent polydimethylsiloxane (PDMS) has some advantages in employing the triboelectric effect due to good conformity at nanometer scale and the simple fabrication process. In this study, we demonstrate that UV irradiation can enhance the performance of a PDMS-based nanotribogenerator. Contact atomic force microscopy combined with Kelvin probe force microscopy enables an in-depth investigation of the effect of UV illumination on local triboelectric charge generation and its decay in PDMS. We found that UV exposure not only facilitates triboelectric charge generation but also enhances charge redistribution, which is related to the wettability of the PDMS surface. This study provides insights into the fundamental understanding and design of triboelectric generator devices. © 2016 AIP Publishing LLC
URI
https://pr.ibs.re.kr/handle/8788114/3305
ISSN
0003-6951
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
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