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SiNx layers on nanostructured Si solar cells: Effective for optical absorption and carrier collection

Title
SiNx layers on nanostructured Si solar cells: Effective for optical absorption and carrier collection
Authors
Cho, YunaeKim, EunahGwon, MinjiPark, Hyeong-HoKim, JoondongKim, Dong-Wook
Ewha Authors
김동욱
SCOPUS Author ID
김동욱scopus
Issue Date
2015
Journal Title
APPLIED PHYSICS LETTERS
ISSN
0003-6951JCR Link1077-3118JCR Link
Citation
vol. 107, no. 15
Publisher
AMER INST PHYSICS
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We compared nanopatterned Si solar cells with and without SiNx layers. The SiNx layer coating significantly improved the internal quantum efficiency of the nanopatterned cells at long wavelengths as well as short wavelengths, whereas the surface passivation helped carrier collection of flat cells mainly at short wavelengths. The surface nanostructured array enhanced the optical absorption and also concentrated incoming light near the surface in broad wavelength range. Resulting high density of the photo-excited carriers near the surface could lead to significant recombination loss and the SiNx layer played a crucial role in the improved carrier collection of the nanostructured solar cells. (C) 2015 AIP Publishing LLC.
DOI
10.1063/1.4933202
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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