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(2009)International conference on Microelectronics devices and technologies, 45th, Proceedings.p.245-249 Mark abstract This paper discusses how graded absorber structures in CIGS-based solar cell can be studied using the numerical simulation tool SCAPS. A model will be built for an AVANCIS solar cell with double grading which is produced with the laboratory line process. We will first discuss how literature and measurement data should be used to start the buildup of the model and afterwards give an illustration how the model then still has to be optimized. We will draw special attention to the consequences of a graded structure on the model. Moreover, we will show how one can discern the real grading benefit by comparison with a uniform reference model.

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Author: Koen Decock, Johan Lauwaert and Marc Burgelman



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