Effect of CdCl2 Treatment of CdS Films on CdTe/CdS Solar Cells

    Research output: Contribution to conferencePaper

    Abstract

    We investigated the effect of CdCl2 treatment of CdS films on the photovoltaic performance of polycrystalline CdTe/CdS solar cells. X-ray diffraction studies indicated that the diffusion of S into CdTe is qualitatively the same for CdTe/CdS films fabricated with both as-deposited and CdCl2-treated CdS. A major difference was observed in the extent of Te diffusion into CdS for the two types of CdSfilms. Full conversion of CdS into CdS1-yTey was observed for films prepared with as-deposited CdS, while the formation of the ternary phase was below the detection limit for films prepared with CdCl2-treated CdS. Photoluminescence measurements confirmed this result. The difference in interdiffusion leads to differences in optical transmission of CdS films and spectral reponse of CdTe/CdS solarcells. An increase of 2.7 mA/cm2 in short-circuit current density was observed as a result of improved spectral response in the wavelength range of 500-600 nm for the CdCl2-treated CdS.
    Original languageAmerican English
    Pages331-336
    Number of pages6
    StatePublished - 1996
    EventThin Films for Photovoltaic and Related Device Applications: Materials Research Society Symposium - San Francisco, California
    Duration: 8 Apr 199611 Apr 1996

    Conference

    ConferenceThin Films for Photovoltaic and Related Device Applications: Materials Research Society Symposium
    CitySan Francisco, California
    Period8/04/9611/04/96

    Bibliographical note

    Work performed by Colorado School of Mines, Golden, Colorado

    NREL Publication Number

    • NREL/CP-23035

    Fingerprint

    Dive into the research topics of 'Effect of CdCl2 Treatment of CdS Films on CdTe/CdS Solar Cells'. Together they form a unique fingerprint.

    Cite this