화학적으로 증착된 CdS 박막의 반응온도에 따른 물성

Abstract

In this paper, CdS thin films, which were widely used as a window layer of the CdS/CdTe and the CdS/ CuInSe2 heterojunction solar cell, were grown by chemical bath deposition, and the structural, optical and electrical properties of the films on reaction temperatures were investigated. Cadmium acetate and thiourea were used as cadmium and sulfur source, respectively. And Ammonium acetate was used as the buffer solution. As the reaction temperatures were increased, the deposition rate of CdS films prepared by CBD was increased and the grain size was large due to increasing reaction rate in solution, also optical transmittance of the films in visible lights was increased on rising reaction temperatures.