Patent ID: 8415557

Claim:
A photoelectric conversion device which has a laminated structure including: an anodized substrate constituted by a metal substrate containing aluminum as a main component and an anodized film formed on at least one surface of the metal substrate; a lower electrode which is formed above said anodized substrate and contains molybdenum as a main component; a photoelectric conversion layer which is formed of a semiconductor material above said lower electrode, and generates electric current when the photoelectric conversion layer absorbs light; an upper electrode formed above said photoelectric conversion layer; at least one metal supply layer which is formed in contact with or inside said lower electrode, contains one or more of alkali metal elements and alkaline earth metal elements, and supplies the one or more of alkali metal elements and alkaline earth metal elements to said photoelectric conversion layer during formation of the photoelectric conversion layer; and at least one diffusion barrier which is conductive and formed between said anodized substrate and said at least one metal supply layer in contact with at least one of said lower electrode and the at least one metal supply layer or inside said lower electrode, and suppresses diffusion, into said anodized substrate, of said one or more of alkali metal elements and alkaline earth metal elements contained in the at least one metal supply layer, wherein the at least one metal supply layer that contains one or more types of alkali metal elements and alkali earth metal elements is provided within the lower electrode or between the lower electrode and the anodized substrate; and wherein said at least one diffusion barrier layer contains as at least one main component at least one of chromium and titanium.