3 years ago

Hybrid Photoconductive Cathode Interlayer Materials Composed of Perylene Bisimide Photosensitizers and Zinc Oxide for High Performance Polymer Solar Cells

Hybrid Photoconductive Cathode Interlayer Materials Composed of Perylene Bisimide Photosensitizers and Zinc Oxide for High Performance Polymer Solar Cells
Zengqi Xie, Frank Würthner
Hybrid photoconductive materials based on zinc oxide (ZnO) doped with perylene bisimide (PBI) dye molecules have emerged as new promising cathode interlayer materials for inverted polymer solar cells (i-PSCs). Such interlayers show increased conductivity under light irradiation (working condition of i-PSCs) due to enhanced electron mobility and carrier density, enabling high performance devices at interlayer thickness of up to 100 nm. Such increased interlayer thickness is desired for roll-to-roll processing techniques to facilitate mass production of photovoltaic modules. Hybrid photoconductive cathode interlayers based on zinc oxide doped with perylene bisimide dye molecules show increased conductivity under light irradiation due to enhanced electron mobility and carrier density, enabling high performance polymer solar cells at interlayer thickness of up to 100 nm, which is desired for roll-to-roll processing techniques to facilitate mass production of photovoltaic modules.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/aenm.201602573

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