Lie Chen, Chen Xie and Yiwang Chen Optimization of the Power Conversion Efficiency of Room Temperature-Fabricated Polymer Solar Cells Utilizing Solution Processed Tungsten Oxide and Conjugated Polyelectrolyte as Electrode Interlayer Advanced Functional Materials 24
Solution processed polymer solar cell with outstanding efficiency and stability is fabricated at room temperature. Spin-coating conjugated polyelectrolyte-ionic liquid-crystal complex at cathode and tungsten oxide together with ter(ethyleneoxide)-substituted PBDTT-TT-TEG at anode achieves optimized efficiency 7.8%, which further increases to 8.5% after inserting ZnO as cathode interlayer. This is best PCE for PBDTTT-C-T:PC70BM-based cells with solution processed interlayers reported to date.
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