Spectroscopic Analysis of Impurity Precipitates in CdS Films

    Research output: Contribution to conferencePaper


    Impurities in cadmium sulfide (CdS) films are a concern in the fabrication of copper (indium, gallium) diselenide (CIGS) and cadmium telluride (CdTe) photovoltaic devices. Devices incorporating chemical-bath-deposited (CBD) CdS are comparable in quality to devices incorporating purer CdS films grown using vacuum deposition techniques, despite the higher impurity concentrations typically observedin the CBD CdS films. In this paper, we summarize and review the results of Fourier transform infrared (FTIR), Auger, electron microprobe, and X-ray photoelectron spectroscopic (XPS) analyses of the impurities in CBD CdS films. We show that these impurities differ as a function of substrate type and film deposition conditions. We also show that some of these impurities exist as 10{sup 2}micron-scale precipitates.
    Original languageAmerican English
    Number of pages9
    StatePublished - 1998
    EventNCPV Program Review Meeting - Denver, Colorado
    Duration: 8 Sep 199811 Sep 1998


    ConferenceNCPV Program Review Meeting
    CityDenver, Colorado

    NREL Publication Number

    • NREL/CP-520-25287


    Dive into the research topics of 'Spectroscopic Analysis of Impurity Precipitates in CdS Films'. Together they form a unique fingerprint.

    Cite this