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Surface-concentrated light and efficient carrier collection in microhole-patterned Si solar cells

Title
Surface-concentrated light and efficient carrier collection in microhole-patterned Si solar cells
Authors
Kim J.Lee E.Ju M.Kim H.Yi J.Moon S.-J.Hyun M.S.Kim D.-W.
Ewha Authors
김동욱
SCOPUS Author ID
김동욱scopus
Issue Date
2013
Journal Title
Optics Express
ISSN
1094-4087JCR Link
Citation
vol. 21, no. 13, pp. A607 - A615
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We investigate photovoltaic characteristics of crystalline Si solar cells with microhole-patterned surface. We compare patterned samples with different hole-widths and periods with a planar counterpart. From the finitedifference time-domain simulation, the patterned and planar samples are expected to have similar short circuit current density, Jsc (difference: 1.2%). In contrast, the difference in the measured Jsc is as large as 12.6%. The simulated optical field patterns reveal that the sample with more significantly concentrated light near the surface has higher quantum efficiency due to more efficient carrier collection. We report the highest efficiency of 15.6% among the hole-patterned solar cells. © 2013 Optical Society of America.
DOI
10.1364/OE.21.00A607
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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