Abstract
Glass substrate constituents play a very important role in CuInGaSe2/Cu2ZnSnS4 thin film solar cell. The diffusion of Na from soda lime glass substrate (SLG) reportedly passivates the grain boundaries of the absorber layers that prevent recombinations of electrons & holes at the grain boundaries. Thus, glasses with various alkali metal oxides (Na/Li/K) have been synthesized and characterized using various experimental techniques to understand the structure-property correlation and its effect on the diffusion phenomenon. The as-prepared glasses for substrate are thermally and mechanically more stable, with better conductivity and higher diffusivity than commercially available soda lime glass (SLG). The present glasses exhibit suitable properties for use as substrate for thin film solar cell.
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