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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

Article first published online: 24 MAR 2014 | DOI: 10.1002/adfm.201304256

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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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