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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 53, Iss. 13 — May. 1, 2014
  • pp: 2847–2852

Light-scattering effectiveness of two-dimensional disordered surface textures in thin-film silicon solar cells

Pinghui S. Yeh, Chien-Wei Chen, Bing-Ru Yang, and Lu-Sheng Hong  »View Author Affiliations


Applied Optics, Vol. 53, Issue 13, pp. 2847-2852 (2014)
http://dx.doi.org/10.1364/AO.53.002847


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Abstract

To compare the light-scattering effectiveness of surface-textured solar cells of various design parameters such as density, diameter, refractive index, and location, this study used a new parameter, optical path length gain (OPLG), that is more sensitive than Haze. By modeling two-dimensional disordered textures as a structure that comprises many randomly distributed, small, spherical scatterers, ray-tracing simulations of surface-textured thin-film silicon solar cells were performed. The simulation results suggest that: (1) the optimal scatterer diameter for hydrogenated amorphous silicon (a-Si:H) solar cells is 50nm, producing an average OPLG of 3.5; and (2) the optimal scatterer diameter for a-Si:H/μc-Si:H (hydrogenated microcrystalline silicon) tandem cells is 75nm, producing an average OPLG of 3.4 and an increase in the bandwidth of the absorption spectrum of 14.5%.

© 2014 Optical Society of America

OCIS Codes
(290.1990) Scattering : Diffusion
(290.5850) Scattering : Scattering, particles
(290.5880) Scattering : Scattering, rough surfaces

ToC Category:
Scattering

History
Original Manuscript: November 29, 2013
Revised Manuscript: March 25, 2014
Manuscript Accepted: March 29, 2014
Published: April 25, 2014

Citation
Pinghui S. Yeh, Chien-Wei Chen, Bing-Ru Yang, and Lu-Sheng Hong, "Light-scattering effectiveness of two-dimensional disordered surface textures in thin-film silicon solar cells," Appl. Opt. 53, 2847-2852 (2014)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-53-13-2847

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