Siripala WVedel, J.Lincot, D.Cahen, D.2014-11-192014-11-1919930003-6951 (print) , 1077-3118 (online)http://repository.kln.ac.lk/handle/123456789/4138Impedance 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.CopperCopper, IndiumElectrodesElectrolytesArticlePhysics