Room-Temperature, Solution-Processed MoOx Thin Film as a Hole Extraction Layer to Substitute PEDOT/PSS in Polymer Solar Cells

Room-temperature, solution-processed molybdenum oxide (MoOx) as a hole extraction layer to substitute PEDOT/PSS in polymer solar cells was demonstrated. The thin film of MoOx shows a smoother surface, better transparency, and high electrical conductivity than that of PEDOT/PSS thin layer and, thus, leading enhanced efficiency of PSCs than those using PEDOT/PSS anode buffer layer. These results demonstrated that the utilization of room-temperature, solution-processed MoOx thin film as a hole extraction layer in polymer solar cells blaze a trail to achieve high performance devices.

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