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Yang, Changduk
Advanced Tech-Optoelectronic Materials Synthesis Lab (ATOMS)
Research Interests
  • Optoelectronic materials synthesis/organic electronics, functionalization of carbonaceous solids, advanced materials chemistry, macromolecular chemistry

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3D Cu ball-based hybrid triboelectric nanogenerator with non-fullerene organic photovoltaic cells for self-powering indoor electronics

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Title
3D Cu ball-based hybrid triboelectric nanogenerator with non-fullerene organic photovoltaic cells for self-powering indoor electronics
Author
Jung, SungwooOh, JiyeonYang, U. JeongLee, Sang MyeonLee, JunghoJeong, MingyuCho, YongjoonKim, SeoyoungBaik, Jeong MinYang, Changduk
Issue Date
2020-11
Publisher
Elsevier Ltd
Citation
NANO ENERGY, v.77, pp.105271
Abstract
Hybrid energy harvesters capable of capturing energy from multiple sources are gaining increasing attention. In this study, we develop the first hybrid organic photovoltaic cell−triboelectric nanogenerator (OPV–TENG) system targeting human activities indoors. The hybrid device comprises a non-fullerene OPV and a Cu ball-based TENG connected in series. Through optimization of an OPV cell, high power conversion efficiencies (15.03%–16.45%) are achieved for cells covering 50 mm2 from indoor light sources. The Cu ball-based TENG effectively generates alternative electricity (electric power > 3 μW and charge up to 1.5 nC) by continuous contact−separation of the Cu balls due to human walking. The hybrid OPV–TENG system by stimulation/automatically harvests indoor light energy and mechanical energy from human motion. The total voltage/current outputs of the hybrid system are close to the sum of those generated from the OPV and TENG individually. Also, we demonstrate that a capacitor and a lithium-ion battery (LIB) are effectively and rapidly charged using an OPV–TENG-based hybrid self-charging device. Our study initiates developing hybrid OPV–TENG systems with extensive application potential for powering indoor electronics. © 2020 Elsevier Ltd
URI
https://scholarworks.unist.ac.kr/handle/201301/48765
URL
https://www.sciencedirect.com/science/article/pii/S221128552030848X
DOI
10.1016/j.nanoen.2020.105271
ISSN
2211-2855
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