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Kwon, Tae-Hyuk
Energy Recognition
Research Interests
  • Energy transfer, organic solar cells, supercapacitor, ultrasonic spray chemistry, dithienothiophene, iridium complexes, phosphorescent bioapplications

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Indoor-light-energy-harvesting dye-sensitized photo-rechargeable battery

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dc.contributor.author Kim, Byung-Man ko
dc.contributor.author Lee, Myeong-Hee ko
dc.contributor.author Dilimon Vijayan Sobhana ko
dc.contributor.author Kim, Jeong Soo ko
dc.contributor.author Nam, Jung Seung ko
dc.contributor.author Cho, Yoon-Gyo ko
dc.contributor.author Noh, Hyun Kuk ko
dc.contributor.author Roh, Deok-Ho ko
dc.contributor.author Kwon, Tae-Hyuk ko
dc.contributor.author Song, Hyun-Kon ko
dc.date.available 2020-01-03T00:16:56Z -
dc.date.created 2019-12-31 ko
dc.date.issued 2020-05 ko
dc.identifier.citation ENERGY & ENVIRONMENTAL SCIENCE, v.13, no.5, pp.1473 - 1480 ko
dc.identifier.issn 1754-5692 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/30701 -
dc.description.abstract Photo-rechargeable batteries (PRBs) benefit from their bifunctionality covering energy harvesting and storage. However, dim-light performances of the PRBs for indoor applications have not been reported. Herein, we present an external-power-free single-structured PRB named a dye-sensitized photo-rechargeable battery (DSPB) with an outstanding light-to-charge energy efficiency (eta(overall)) of 11.5% under the dim light condition. This unprecedented eta(overall) was attributed to the thermodynamically-favorable design of the DSPB that maximizes the working potential. At high-power irradiation, the kinetically-fast but thermodynamically-unfavorable iodine mediator (I-/I-3(-)) showed the highest charge and discharge capacities even if its discharge voltage was lowest. Under dim-light for indoor applications, however, the thermodynamically-favorable but kinetically-slow copper complex mediator (Cu+/2+(dmp)(2)) showed energy density and efficiency superior to I-/I-3(-) because its kinetics did not limit the harvesting capacity. The successful demonstration of the ability of the DSPB to operate a temperature-sensing IoT device only by indoor light opens the possibility of realizing indoor-light-harvesting PRBs. ko
dc.language 영어 ko
dc.publisher Royal Society of Chemistry ko
dc.title Indoor-light-energy-harvesting dye-sensitized photo-rechargeable battery ko
dc.type ARTICLE ko
dc.identifier.wosid 000536818900016 ko
dc.type.rims ART ko
dc.identifier.doi 10.1039/C9EE03245B ko
dc.identifier.url https://pubs.rsc.org/en/content/articlelanding/2020/ee/c9ee03245b#!divAbstract ko
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