INFLUENCE OF ION IMPLANTATION ON THE SURFACE CHARACTERISTICS OF POLYCRYSTALLINE CdS LAYERS

M. Al-Achkar and C.G. Scott
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M. Al-Achkar: Department of Applied Physics, University of Hull, Hull, HU6 7RX, UK
C.G. Scott: Department of Applied Physics, University of Hull, Hull, HU6 7RX, UK

Surface Review and Letters (SRL), 1994, vol. 01, issue 04, 665-668

Abstract: PN-heterojunction type solar cells have been fabricated by immersingn-type polycrystalline CdS films in a solution containing copper ions, to form ap-typeCu2Slayer over the CdS surface. The efficiency and stability of these devices have been found to be very dependent on the grain structure of the initial CdS layers but by the use of ion implantation to modify the structure of the CdS surface significant improvements in cell characteristics have been obtained. Evidence is provided to show that this improvement can be attributed to a reduction in the effective junction area of the cells.

Date: 1994
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DOI: 10.1142/S0218625X94000898

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