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Application of F4TCNQ Doped spiro-MeOTAD in High Performance Solid State Dye Sensitized Solar Cells

Dong-Yi Chen, Wei-Hsuan Tseng, Sheng-Ping Liang, Chih-I Wu, Che-Wei Hsu, Yun Chi, Wen-Yi Hung, Pi-Tai Chou

Phys Chem Chem Phys. 2012 Sep 7;14(33):11689-94.

PMID: 22824805

Abstract:

Amid the investigation of solid-state dye-sensitized solar cells (SDSSCs), it was found that the incorporation of F4TCNQ into the solid hole-transporting materials (HTMs) spiro-MeOTAD forms a spiro-MeOTAD/F4TCNQ (strong electron acceptor) polaron charge-transfer complex. Careful examination indicates that the formation of the polaron charge-transfer complex not only facilitates the conductivity of HTMs but also inhibits the charge recombination across the interface of the heterojunction, i.e. photoanode/HTMs and/or counter electrode/HTMs. As a result, the performance of SDSSCs has been markedly improved by using the organic dye A2-F. At AM1.5 illumination the short circuit current densities J(SC) increase from 8.29 mA cm(-2) (w/o F4TCNQ) to 10.95 mA (w/F4TCNQ), accompanied by a 20% increase of the overall power conversion efficiency, η, from 4.55% to 5.44%.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP207739728-B Spiro-MeOTAD Spiro-MeOTAD 207739-72-8 Price
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