Abstract: A thin-film solar cell module, and a method of interconnecting two or more thin-film solar cells on a foreign supporting substrate. The method comprises the step of wire-bonding an air-side electrode of one thin-film solar cell to a substrate-side electrode of an adjacent solar cell, such that said thin-film solar cells are connected in series.

Abstract: The invention provides a method of forming a polycrystalline semiconductor film on a supporting substrate of foreign material. The method involves depositing a metal film onto the substrate, forming a film of metal oxide and/or hydroxide on a substrate of the metal, and forming a layer of an amorphous semiconductor material over a surface of the metal oxide and/or hydroxide film. The entire sample is then heated to a temperature at which the semiconductor layer is absorbed into the metal layer and deposited as a polycrystalline layer onto the target surface by metal-induced crystallization. The metal is left as an overlayer covering the deposited polycrystalline layer, with semiconductor inclusions in the metal layer. The polycrystalline semiconductor film and the overlayer are generated by porous interfacial metal oxide nd/or hydroxide film.