He currently focusses on low-cost methods to develop Thin film solar cells based on electrodeposited CIGS materials,where he has reported efficiencies of 15.9% to date, compared with the highest value of 19.5% reported by NREL 4using more expensive techniques.
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Based on these novel ideas he has reported a higher efficiency of 18% for the CdTe/CdS cell 3, compared with 16.5% reported by NREL in the United States.