Cadmium sulphide photovoltaic cell - has a cadmium sulphide bi:layer, the second layer deposited at a lower temp. than the first

摘要

Cell comprises a substrate; a first Cd sulphide layer; a second Cd sulphide layer deposited at a temp. at least 20 degrees C , pref. 30-60 degrees C , and esp. about 50 degrees C the deposition temp. for the first Cd sulphide layer; and a barrier layer, pref. of Cd sulphide. Esp. in solar cells; use of a Cd sulphide layer improves cell efficiency.