CIGS module manufacturing with high deposition rates and efficiencies

Abstract

In this paper we present results of efficiency optimizations in conjunction with increased CIGS deposition rates. Furthermore, we describe Solibro's recent technology improvements for higher module efficiencies and our roadmap for further efficiency improvements. Our results indicate that with co-evaporation of CIGS absorbers high module efficiencies can be realized at high dynamic deposition rates. Various improvements have recently been introduced in Solibro's CIGS production process, which led to a champion module efficiency of 14.4% (total area, externally confirmed). Solibro's efficiency roadmap shows that the technology is capable of producing average efficiencies of 17% within the next 3 years.