4.7 Article

Nitro group as a new anchoring group for organic dyes in dye-sensitized solar cells

Journal

CHEMICAL COMMUNICATIONS
Volume 48, Issue 53, Pages 6663-6665

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cc31516e

Keywords

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Funding

  1. China Natural Science Foundation [21076039]
  2. National Basic Research Program of China [2009CB220009]
  3. Program for Innovative Research Team of Liaoning Province [LS2010042]
  4. Ministry of Science and Technology (MOST) [2001CCA02500]
  5. Swedish Energy Agency
  6. State Key Laboratory of Fine Chemicals [KF0805]
  7. K&A Wallenberg Foundation

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An organic dye JY1 bearing a nitro group was designed, synthesized and applied in DSCs. An unusual colour change was observed when the voltage applied to the device was reversed which was accompanied by a five-fold increase in the cell efficiency. We propose that applying a bias enabled the attachment of nitro groups to the TiO2 surface.

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