研究目的
Investigating the conductivity and work function of PEDOT:PSS for use as a top electrode in solution-processed organic solar cells (OPV) and evaluating its performance as both a hole transport layer (HTL) and anode electrode.
研究成果
High conductive PEDOT:PSS polymer was developed from the mixture of PH 1000, AI 4083, and additive solvent of EG, achieving conductivity of 443 S/cm and corresponding sheet resistance of 260 Ω/sq. The developed PEDOT:PSS conductive polymers were successfully used for both HTL and anode electrode in all-solution-processed inverted OPVs, providing a photo-conversion efficiency of 2.04% and exhibiting semitransparency due to the transparency of the conductive polymer.
研究不足
The performance of polymer top electrode OPVs was inferior to metal top electrode OPVs due to higher series resistance and corresponding less fill factor (FF), attributed to the higher sheet resistance of the polymer electrode. Future work may focus on achieving multiple stacks of hybrid PEDOT:PSS film for further sheet resistance reduction.