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- Title
Acoustostimulated Expansion of the Short-Wavelength Sensitivity Range of AlGaAs/GaAs Solar Cells.
- Authors
Zaveryukhina, E. B.; Zaveryukhina, N. N.; Lezilova, L. N.; Zaveryukhin, B. N.; Volodarski&ibreve;, V. V.; Muminov, R. A.
- Abstract
The effect of ultrasonic waves on the spectral sensitivity of solar energy converters based on AlGaAs/GaAs heterostructures has been studied. Ultrasonic treatment of a zinc-doped graded-gap AlxGa1 – xAs film leads to the formation of a surface layer sensitive to electromagnetic radiation in the wavelength range λ < 0.551μm. It is established that this layer is formed as a result of the acoustostimulated inward diffusion of zinc from the surface to the bulk of the graded-gap layer. The observed expansion of the short-wavelength sensitivity range and an increase in the efficiency of nonequilibrium charge carrier collection in AlGaAs/GaAs solar cells are due to improvement of the crystal defect structure and the dopant redistribution under the action of ultrasound. © 2005 Pleiades Publishing, Inc.
- Subjects
SOLAR energy; SPECTRAL sensitivity; ZINC; ELECTROMAGNETIC waves; ELECTROMAGNETISM; CASCADE converters
- Publication
Technical Physics Letters, 2005, Vol 31, Issue 1, p27
- ISSN
1063-7850
- Publication type
Article
- DOI
10.1134/1.1859492