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Composition measurements related to the Cu/sub 2/S/Zn/sub x/Cd/sub 1-x/S heterojunction

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.90976· OSTI ID:6024688
Composition of zinc and cadmium have been measured for three key regions related to the formation of Cu/sub 2/S on Zn/sub x/Cd/sub 1-x/X by aqueous ion exchange. These are the ion-exchange solution, the resulting Cu/sub 2/S, and the Zn/sub x/Cd/sub 1-x/S near the Cu/sub 2/S-Zn/sub x/Cd/sub 1-x/ interface. It is found that the participation of zinc in the ion-exchange reaction is incomplete. Zinc is thus retained in the p-n junction region, and is found mainly in the Zn/sub x/Cd/sub 1-x/S just under the interface. This phenomenon helps to account for certain differences between electro-optical properties of Cu/sub 2/S/CdS and Cu/sub 2/S/Zn/sub x/Cd/sub 1-x/S solar cells.
Research Organization:
Department of Electrical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
OSTI ID:
6024688
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 35:10; ISSN APPLA
Country of Publication:
United States
Language:
English