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Two-dimensional GaAs/AlGaAs superlattice structures for solar cell applications: Ultimate efficiency estimation
Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
Adam Mickiewicz Univ Poznan, Fac Phys, Surface Phys Div, PL-61614 Poznan, Poland.
2009 (English)In: Journal of Applied Physics, ISSN 0021-8979, Vol. 106, no 9, 093703- p.Article in journal (Refereed) Published
Abstract [en]

We calculate the band structure of a two-dimensional GaAs/AlGaAs superlattice and estimate the ultimate efficiency of solar cells using this type of structure for solar energy conversion. The superlattice under consideration consists of gallium arsenide rods forming a square lattice and embedded in aluminum gallium arsenide. The ultimate efficiency is determined versus structural parameters including the filling fraction, the superlattice constant, the rod geometry, and the concentration of Al in the matrix material. The calculated efficiency of the superlattice proves to exceed the efficiency of each component material in the monolithic state in a wide range of parameter values.

Place, publisher, year, edition, pages
2009. Vol. 106, no 9, 093703- p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-52905DOI: 10.1063/1.3253584OAI: diva2:285754
Available from: 2010-01-13 Created: 2010-01-12 Last updated: 2010-01-13

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