Browsing by Author "Vedel, J."

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    Band Edge Shifts of p-type Copper Indium Diselenide Electrodes in Aqueous Electrolytes
    (Applied Physics Letters, 1993) Siripala W; Vedel, J.; Lincot, D.; Cahen, D.
    Impedance measurements were used to evaluate the relative band edge positions of single crystalp?CuInSe2electrodes in various aqueous electrolytes, by measuring the extrapolated flatband potentials, V fb. We find that V fb can be shifted, depending on the extent of the potential scan and on the pH of the electrolyte used, over a range of up to 1.7 V (between pH 0?pH 14). In the pH range 0?6, V fb can be fixed at intermediate values, which, in their turn, are determined by the pH of the electrolyte.