4.7 Article

A hydrophobic hole transporting oligothiophene for planar perovskite solar cells with improved stability

Journal

CHEMICAL COMMUNICATIONS
Volume 50, Issue 76, Pages 11196-11199

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cc04680c

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Funding

  1. National Natural Science Foundation of China [61177020, 11121091]
  2. National Basic Research Program of China [2013CB328700]

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An oligothiophene derivative named DR3TBDTT with high hydrophobicity was synthesized and functioned as the hole transporting material without an ion additive. 8.8% of power conversion efficiency was obtained for CH3NH3PbI3-xClx based planar solar cells with improved stability, compared to devices using Li-TFSI doped spiro-MeOTAD.

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