Microstructures, optical and photoelectric conversion properties of spherical silicon solar cells with anti-reflection SnO sub(x):F thin films

The microstructures and optical and photoelectric conversion properties of spherical silicon (Si) solar cells were investigated and discussed. The surface of the spherical Si with a pn junction provided high crystallinity, and the lattice constant of the center of Si spheres is larger than that of t...

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Bibliographic Details
Published inJapanese Journal of Applied Physics Vol. 53; no. 5S1; pp. 05FJ03 - 1-05FJ03-7
Main Authors Oku, Takeo, Kanayama, Masato, Ono, Yuji, Akiyama, Tsuyoshi, Kanamori, Youichi, Murozono, Mikio
Format Journal Article
LanguageEnglish
Published 01.01.2014
Subjects
Annealing
Lattice parameters
Microstructure
Optical properties
Photoelectricity
Photovoltaic cells
Silicon
Solar cells
Thin films
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Summary:The microstructures and optical and photoelectric conversion properties of spherical silicon (Si) solar cells were investigated and discussed. The surface of the spherical Si with a pn junction provided high crystallinity, and the lattice constant of the center of Si spheres is larger than that of the surface, which would be due to the lattice distortion by defect structures at the center of Si. The conversion efficiencies of spherical Si solar cells coated with SnO sub(x):F anti-reflection thin films were improved by annealing. The optical absorption and fluorescence of the solar cells increased, and the lattice constants of SnO sub(x):F anti-reflection layers decreased after annealing. The mechanisms of chemical reactions at the Si/metal interface were also discussed.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
content type line 23
ObjectType-Feature-2
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAP.53.05FJ03