industry research
rhombus4
For the application in a concentrator
PV system, the influences of optical
elements and the operating
temperature of the cells have to be
considered. In the future the
development of multi-junction solar
cells may be more directed towards
a maximum power output of a
specific concentrator system rather
than increasing the cell performance
under the standard AM1.5d spectrum
at 25 °C. This will help III-V
semiconductors to be more
successful in the new solar
concentrator PV market with the
potential to become a major player in
the industry and to lower the cost of Above and right: Figure 5
solar electricity.
References
[1] A. W. Bett, F. Dimroth, and G. Siefer, "Multijunction Concentrator Solar Cells," in Concentrator Photovoltaics. Heidelberg, Germany:
Springer Verlag, 2007, pp. 67-87.
[2] F. Dimroth and S. Kurtz, "High-Efficiency Multijunction Solar Cells," MRS Bulletin, vol. 32, pp. 230-4, 2007.
[3] R. R. King, D. C. Law, K. M. Edmondson, C. M. Fetzer, G. S. Kinsey, H. Yoon, R. A. Sherif, and N. H. Karam, "40% efficient metamorphic
GaInP/GaInAs/Ge multijunction solar cells," Applied Physics Letters, vol. 90, pp. 183516-1 -3, 2007.
[4] 1W. Guter, J. Schoene, S. P. Philipps, M. Steiner, G. Siefer, A. Wekkeli, E. Welser, E. Oliva, A. W. Bett, and F. Dimroth, "Current-matched
triple-junction solar cell reaching 41.1% conversion efficiency under concentrated sunlight," Applied Physics Letters vol. 94, pp. 223504/1-3,
2009.
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www.compoundsemiconductor.net October 2009
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