Wide-angle antireflection effect of subwavelength structures for solar cells

Hitoshi Sai; Homare Fujii; Koji Arafune; Yoshio Ohshita; Yoshiaki Kanamori; Hiroo Yugami; Masafumi Yamaguchi

doi:10.1143/JJAP.46.3333

Wide-angle antireflection effect of subwavelength structures for solar cells

Hitoshi Sai, Homare Fujii, Koji Arafune, Yoshio Ohshita, Yoshiaki Kanamori, Hiroo Yugami, Masafumi Yamaguchi

Research output: Contribution to journal › Article › peer-review

90 Citations (Scopus)

Abstract

The angle-dependent reflectivity of several surface structures was analyzed and evaluated with the viewpoint of solar cell applications. Numerical analysis showed that a Si subwavelength structure (SWS) maintains a lower reflectivity at large incident angles than conventional light-trapping techniques such as a random pyramid texture, and that it can contribute to increasing the output power of solar cells under oblique irradiation. This wide-angle antireflection effect was demonstrated by fabricating test crystalline Si cells with several surface structures including a SWS and measuring their angle-dependent short-circuit current densities.

Original language	English
Pages (from-to)	3333-3336
Number of pages	4
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	46
Issue number	6 A
DOIs	https://doi.org/10.1143/JJAP.46.3333
Publication status	Published - 2007 Jun 6

Keywords

Angle dependence
Antireflection
Light-trapping
Solar cell
Subwavelength structure
Surface texture

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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10.1143/JJAP.46.3333

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Wide-angle antireflection effect of subwavelength structures for solar cells. / Sai, Hitoshi; Fujii, Homare; Arafune, Koji; Ohshita, Yoshio; Kanamori, Yoshiaki ; Yugami, Hiroo; Yamaguchi, Masafumi.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 46, No. 6 A, 06.06.2007, p. 3333-3336.

Research output: Contribution to journal › Article › peer-review

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abstract = "The angle-dependent reflectivity of several surface structures was analyzed and evaluated with the viewpoint of solar cell applications. Numerical analysis showed that a Si subwavelength structure (SWS) maintains a lower reflectivity at large incident angles than conventional light-trapping techniques such as a random pyramid texture, and that it can contribute to increasing the output power of solar cells under oblique irradiation. This wide-angle antireflection effect was demonstrated by fabricating test crystalline Si cells with several surface structures including a SWS and measuring their angle-dependent short-circuit current densities.",

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AU - Sai, Hitoshi

AU - Fujii, Homare

AU - Arafune, Koji

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AU - Kanamori, Yoshiaki

AU - Yugami, Hiroo

AU - Yamaguchi, Masafumi

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N2 - The angle-dependent reflectivity of several surface structures was analyzed and evaluated with the viewpoint of solar cell applications. Numerical analysis showed that a Si subwavelength structure (SWS) maintains a lower reflectivity at large incident angles than conventional light-trapping techniques such as a random pyramid texture, and that it can contribute to increasing the output power of solar cells under oblique irradiation. This wide-angle antireflection effect was demonstrated by fabricating test crystalline Si cells with several surface structures including a SWS and measuring their angle-dependent short-circuit current densities.

AB - The angle-dependent reflectivity of several surface structures was analyzed and evaluated with the viewpoint of solar cell applications. Numerical analysis showed that a Si subwavelength structure (SWS) maintains a lower reflectivity at large incident angles than conventional light-trapping techniques such as a random pyramid texture, and that it can contribute to increasing the output power of solar cells under oblique irradiation. This wide-angle antireflection effect was demonstrated by fabricating test crystalline Si cells with several surface structures including a SWS and measuring their angle-dependent short-circuit current densities.

KW - Angle dependence

KW - Antireflection

KW - Light-trapping

KW - Solar cell

KW - Subwavelength structure

KW - Surface texture

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Wide-angle antireflection effect of subwavelength structures for solar cells

Abstract

Keywords

ASJC Scopus subject areas

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