Enhanced light absorption in thin-film solar cells with light propagation direction conversion

Suemune, Ikuo

Optics Express, 2013, 21(S3), A539-A547

Permalink : https://hdl.handle.net/2115/52940

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ファイル	フォーマット	サイズ	閲覧回数	説明
oe-21-S3-A539	pdf	1.18 MB	1,537

アクセス権	open access
URI	https://hdl.handle.net/2115/52940
タイトル	Enhanced light absorption in thin-film solar cells with light propagation direction conversion
著者	e-Rad_Researcher 00112178 著者名 Suemune, Ikuo
言語	英語
キーワード	Diffraction gratings
	Gratings
	Absorption
	Solar energy
発行日	2013-04-25
出版者	Optical Society of America
収録物名	Optics Express
巻(号)	21(S3)
ページ	A539-A547
抄録	Enhancement of optical absorption in thin-film solar cells (TF-SCs) has been the long-lasting issue to achieve high efficiencies. Grating couplers have been studied for the conversion of incident light into guided modes propagating along TF-SCs to extend optical path for higher optical absorption. However the wavelength band for the efficient conversion remained relatively narrow and the overall improvement of TF-SC efficiencies has been limited. This paper demonstrates that the grating height design as well as the phase matching condition is important for the enhancement of optical absorption in TF-SCs with the calculation of short-circuit currents as a figure of merit for optimization. The influence of the light absorption coefficients and grating coupling strengths on the light absorption bandwidth is also discussed.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	© 2013 Optical Society of America, Inc.
EISSN	1094-4087
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1364/OE.21.00A539