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Energy Express

Energy Express

  • Editor: Bernard Kippelen
  • Vol. 19, Iss. S5 — Sep. 12, 2011
  • pp: A1165–A1174

Efficient optical absorption in thin-film solar cells

Lili Yang, Yimin Xuan, and Junjie Tan  »View Author Affiliations

Optics Express, Vol. 19, Issue S5, pp. A1165-A1174 (2011)

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In order to improve the optical absorption of hydrogenated amorphous silicon (a-Si:H) thin film solar cells, a new structure consisted of ITO layer with the nonresonant nanoparticles embedded in it and a-Si:H layer, is proposed. By optimizing both the thickness of a-Si:H layer and nanoparticles size, the effects of Fabry-Perot resonance and the scattering of incident light are discussed and analyzed. It is demonstrated that the enhanced optical absorption can be achieved due to the coupling of incident light and nanostructure, simultaneously the proposed structure can be considered as gradient refractive index structure to restrain the reflection at the interface of ITO and a-Si:H thin film.

© 2011 OSA

OCIS Codes
(050.2230) Diffraction and gratings : Fabry-Perot
(290.5850) Scattering : Scattering, particles
(310.6860) Thin films : Thin films, optical properties
(350.4990) Other areas of optics : Particles

ToC Category:
Thin Films

Original Manuscript: July 8, 2011
Revised Manuscript: August 20, 2011
Manuscript Accepted: August 24, 2011
Published: September 2, 2011

Lili Yang, Yimin Xuan, and Junjie Tan, "Efficient optical absorption in thin-film solar cells," Opt. Express 19, A1165-A1174 (2011)

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