Solution-processed Ga-TiO2 electron transport layer for efficient inverted organic solar cells
Materials Letters(2020)
Abstract
•Ga-doped TiO2 film is synthesized using solution-processing techniques.•High photovoltaic parameters are achieved when used in inverted organic solar cells.•Superior efficiency at 7.72% is attained in the Ga-doped TiO2 based solar cell.•High efficiency is attributed to the improved charge transport and energy level.
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Key words
Electron transport layer,Ga-doped TiO2,Organic solar cells,HRTEM,XPS
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