Patent ID: 8071400
Filing Date: 2011-12-06
Classification: C23C,C25D,H01L,Y02E,Y02P,Y10S

Abstract:
1. A method of manufacturing a buffer layer of a photoelectric conversion device having a stacked structure in which a lower electrode, a photoelectric conversion semiconductor layer that generates a current by absorbing light, the buffer layer, a translucent conductive layer, and an upper electrode are stacked on a substrate, the method comprising: a preparation step for preparing a reaction solution which includes a component (Z) of at least one kind of zinc source, a component (S) of at least one kind of sulfur source, a component (C) of at least one kind of citrate compound, a component (N) of at least one kind selected from the group consisting of ammonia and ammonium salt, and water, wherein: the concentration of the component (C) is 0.001 to 0.25M; the concentration of the component (N) is 0.001 to 0.40M; and the pH before the start of reaction is 9.0 to 12.0; and a film forming step for forming a Zn compound layer consisting primarily of Zn(S, O) and/or Zn(S, O, OH) by a liquid phase method with a reaction temperature of 70 to 95° C.