Abstract

This paper summarizes a six-year research program aimed at preparation and characterization of thin films of the chalcopyrite semiconductor CuInSe2 suitable for photovoltaic solar cells and other semiconductors devices. The thin film deposition methods used were evaporation, flash evaporation, RF-sputtering and chemical spray pyrolysis. Problems with producing films of reproducible properties by these methods are discussed. Gaps in our knowledge of the dependence of the opto-electronic properties of CuInSe2 crystals and films on structural defects and other imperfections are pointed out.

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