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dc.contributor.author정두석-
dc.date.accessioned2018-05-29T02:04:02Z-
dc.date.available2018-05-29T02:04:02Z-
dc.date.issued2016-05-
dc.identifier.citationCURRENT APPLIED PHYSICS, v.16, no.5, page.568-573en_US
dc.identifier.issn1567-1739-
dc.identifier.issn1878-1675-
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S1567173916300372?via%3Dihub-
dc.identifier.urihttp://repository.hanyang.ac.kr/handle/20.500.11754/71592-
dc.description.abstractTexturing of silicon wafers with periodic gratings in submicron scale is one of effective light trapping routes especially for thin crystalline silicon solar cells. The grating can be very effective for trapping of photons near band gap of crystalline silicon when its period is suitably chosen. The asymmetric gratings provide higher light trapping efficiency than symmetric ones because the asymmetric one suppress the escape of internally reflected light in the silicon wafers. In this study, we conceptually show that asymmetric grating can be fabricated by simple stacking of a dielectric layer onto the symmetric silicon grating structures. Optical simulations were performed to calculate optical absorptions in thin crystalline silicon of a 5 mu m thickness with symmetric and asymmetric grating structures. We demonstrate that with the asymmetric grating structures combined with highly efficient antireflection coating, optical absorptions in the thin silicon wafers can reach over 97% of the Lambertian absorption limit. (C) 2016 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipThis work was financially supported from the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (Grant No. 20143030011850, 20153030013060). I. Kim acknowledges KUUC (KIST-UNIST-Ulsan Center for Convergent Materials) for the partial financial support.en_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE BVen_US
dc.subjectThin crystalline silicon solar cellsen_US
dc.subjectLight trappingen_US
dc.subjectTexturingen_US
dc.subjectGratingen_US
dc.subjectOptical modelingen_US
dc.titleAsymmetric back contact nanograting design for thin c-Si solar cellsen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.cap.2016.02.007-
dc.relation.journalCURRENT APPLIED PHYSICS-
dc.contributor.googleauthorKim, Inho-
dc.contributor.googleauthorJeong, Doo Seok-
dc.contributor.googleauthorLee, Wook Seong-
dc.contributor.googleauthorKim, Won Mok-
dc.contributor.googleauthorLee, Kyeong-Seok-
dc.contributor.googleauthorLee, Taek-Sung-
dc.relation.code2016002235-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDIVISION OF MATERIALS SCIENCE AND ENGINEERING-
dc.identifier.piddooseokj-
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COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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