Growth and evaluation of lpe graded composition AlxGa1−xAs layers for high efficiency graded bandgap solar cells View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1977-11

AUTHORS

R. Sahai, J. S. Harris, D. D. Edwall, F. H. Eisen

ABSTRACT

A melt-mixing LPE growth technique to obtain a graded composition AlxGa1−xAs layer is described. The graded bandgap AlGaAs/GaAs solar cell requires the Al fraction (x) in the AlxGa1−xAs surface layer to increase from the junction towards the surface. The graded composition AlxGa1−xAs layer creates a built-in electric field for minority carriers which improves the carrier collection process. This graded bandgap solar cell should enable one to realize the full potential of GaAs as a material for solar energy conversion. Quantitative evaluation of the composition profile for these graded layers is needed to develop the proper growth technique and to understand the resulting solar cell characteristics. Rutherford backscattering analysis technique is described which has been successfully used to profile such layers. More... »

PAGES

645-658

Journal

TITLE

Journal of Electronic Materials

ISSUE

6

VOLUME

6

Author Affiliations

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf02660342

DOI

http://dx.doi.org/10.1007/bf02660342

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1021274989


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