One-step electrodeposition of In2Se3 and CuInSe2 on nanostructures TiO2 films for potential use in solar cells

M.VALDÉS; A. GOOSSENS; M. VAZQUEZ

New London, EEUU

Conferencia; Gordon Research Conference on Electrodeposition; 2008

In order to reduce production costs, new cell concepts based on nanostructured materials have been developed. Grätzel and co-workers introduced an important advancement by using nanostructured titanium dioxide in dye-sensitized solar cells . Others groups have used a similar concept to design new cells based on 3D inorganic heterojunctions, achieving conversion efficiencies of 5% by atomic layer deposition (ALD) and spray pyrolysis deposition (SPD) . Chalcopyrites, particularly CuInSe2 and CuInS2 (CIS), are among the most promising absorbing materials for solar cells. High conversion efficiencies have been achieved in solar cells that incorporate electrodeposited CIS. The purpose of this study is to exclude these type of deposition processes completely, relying instead on less expensive methods such as spraying and electrodeposition .