Commenced in January 2007
Paper Count: 30172
The Effect of a Graded Band Gap Window on the Performance of a Single Junction AlxGa1-xAs/GaAs Solar Cell
Abstract:We have modeled the effect of a graded band gap window on the performance of a single junction AlxGa1-xAs/GaAs solar cell. First, we study the electrical characteristics of a single junction AlxGa1-xAs/GaAs solar cell, by employing an optimized structure for this solar cell, we show that grading the band gap of the window can increase the conversion efficiency of the solar cell by about 1.5%, and can also improve the quantum efficiency of the solar cell especially at shorter wavelengths.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1073130Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1547
 B. Danilchenko, et al., "1MeV electron irradiation influence on GaAs solar cell performance", Solar Energy Materials & Solar Cells 92 (2008) 1336-1340.
 Martin A. Green, Keith Emery, Yoshihiro Hishikawa, Wilhelm Warta, "Solar cell efficiency tables (Version 33)", Prog. Photovolt: Res. Appl. 2009; 17:85-94.
 A. F. Meftah, N. Sengouga, A. M. Meftah, S. Khelifi, "Numerical simulation of the effect of the Al molar fraction and thickness of an AlxGa1-xAs window on the sensitivity of a p+-n-n+ GaAs solar cell to 1 MeV electron irradiation", Renewable Energy 34 (2009) 2426-2431.
 B. Li, et al., "High efficiency AlxGa1-xAs/GaAs solar cells: Fabrication, irradiation and annealing effect", Solar Energy Materials & Solar Cells 44 (1996) 63-67.
 V. M. Andreev, V. V. Komin, I. V. Kochnev, V. M. Lantratov, M. Z. Shvarts, "High-efficiency AlGaAs-GaAs solar cells with internal bragg reflector", CH3365-4/94/0000-1894 $4.00 ┬® 1994 IEEE.
 X. B. Xiang, W. H. Du, X. L. Chang, H. R. Yuan, "The study on high efficient AlxGa1-xAs/GaAs solar cell", Solar Energy Materials & Solar Cells 68 (2001) 97-103.
 M. Z. Shvarts, O. I. Chosta, I. V. Kochnev, V. M. Lantratov, V. M. Andreev, "Radiation resistant AlGaAs/GaAs concentrator solar cells with internal bragg reflector", Solar Energy Materials & Solar Cells 68 (2001) 105-122.
 Silvaco International, Atlas User-s Manual, 2007.
 Arturo Morales-Acevedo, "Effective absorption coefficient for graded band gap semiconductors and the expected photocurrent density in solar cells", Solar Energy Materials & Solar Cells 93 (2009) 41- 44.