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Transparent conductor-embedding nanocones for selective emitters: optical and electrical improvements of Si solar cells

Title
Transparent conductor-embedding nanocones for selective emitters: optical and electrical improvements of Si solar cells
Authors
Kim, JoondongYun, Ju-HyungKim, HyunyubCho, YunaePark, Hyeong-HoKumar, M. Melvin DavidYi, JunsinAnderson, Wayne A.Kim, Dong-Wook
Ewha Authors
김동욱
SCOPUS Author ID
김동욱scopus
Issue Date
2015
Journal Title
SCIENTIFIC REPORTS
ISSN
2045-2322JCR Link
Citation
vol. 5
Publisher
NATURE PUBLISHING GROUP
Indexed
SCI; SCIE; SCOPUS WOS
Abstract
Periodical nanocone-arrays were employed in an emitter region for high efficient Si solar cells. Conventional wet-etching process was performed to form the nanocone-arrays for a large area, which spontaneously provides the graded doping features for a selective emitter. This enables to lower the electrical contact resistance and enhances the carrier collection due to the high electric field distribution through a nanocone. Optically, the convex-shaped nanocones efficiently reduce light-reflection and the incident light is effectively focused into Si via nanocone structure, resulting in an extremely improved the carrier collection performances. This nanocone-arrayed selective emitter simultaneously satisfies optical and electrical improvement. Wereport the record high efficiency of 16.3% for the periodically nanoscale patterned emitter Si solar cell.
DOI
10.1038/srep09256
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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