Thin Film Rectifying Device

A thin film rectifying device has been developed. This device consists of a frosted glass plate (evaporation substrate), two aluminium films, one selenium film and two fine copper lead wires. First aluminium is evaporated from a molybdenum boat onto a roughened surface of the frosted glass plate, then selenium is evaporated onto the aluminium film and finally aluminium is again evaporated onto the selenium film. The current ratio when 3 volts is applied in the forward and backward directions is approximately 100 : 1.