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Optics Express

Optics Express

  • Editor: Martijn de Sterke
  • Vol. 16, Iss. 20 — Sep. 29, 2008
  • pp: 15754–15758

Improvement of conversion efficiency for multi-junction solar cells by incorporation of Au nanoclusters

M. D. Yang, Y. K. Liu, J. L. Shen, C. H. Wu, C. A. Lin, W. H. Chang, H. H. Wang, H. I. Yeh, W. H. Chan, and W. J. Parak  »View Author Affiliations

Optics Express, Vol. 16, Issue 20, pp. 15754-15758 (2008)

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We studied the photoluminescence (PL) and photovoltaic current-voltage characteristics of the three-junction InGaP/InGaAs/Ge solar cells by depositing Au nanoclusters on the cell surface. The increases of the PL intensity and short-circuit current after incorporation of Au nanoclusters are evident. An increase of 15.3 % in energy conversion efficiency (from 19.6 to 22.6 %) is obtained for the three-junction solar cells in which Au nanoclusters have been incorporated. We suggest that the increased light trapping due to radiative scattering from Au nanoclusters is responsible for improving the performance of the three-junction solar cells.

© 2008 Optical Society of America

OCIS Codes
(350.6050) Other areas of optics : Solar energy
(160.4236) Materials : Nanomaterials

ToC Category:

Original Manuscript: August 20, 2008
Revised Manuscript: September 17, 2008
Manuscript Accepted: September 17, 2008
Published: September 19, 2008

M. D. Yang, Y. K. Liu, J. L. Shen, C. H. Wu, C. A. Lin, W. H. Chang, H. H. Wang, H. I. Yeh, W. H. Chan, and W. J. Parak, "Improvement of conversion efficiency for multi-junction solar cells by incorporation of Au nanoclusters," Opt. Express 16, 15754-15758 (2008)

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