The fabrication procedures and characteristics of several thin-film p-CuInSe2/n-CdS heterojunction solar cells are presented. Two modes of operation (illumination through CuInSe2 or through CdS) are discussed. Efficiencies in the range of 4–5% are reported, under 100 mW/cm2 tungsten-halogen illumination for 1.2-cm2 devices. Included are the spectral response and J-V characteristics for these photovoltaic junctions.

A sequential masking system for the deposition of multilayer thinfilm structures A versatile and relatively inexpensive thin film deposition system which provides the selection of a number of substrate-mask-source arrangements is presented. The system, designed for use in a 36 em ultrahigh vacuum chamber, uses one linear and one rotary feedthrough to accomplish all mechanical motion.