• Title/Summary/Keyword: hiophene linker

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Synthesis of Organic Dyes with Linkers Between 9,9-Dimethylfluorenyl Terminal and α-Cyanoacrylic Acid Anchor, Effect of the Linkers on UV-Vis Absorption Spectra, and Photovoltaic Properties in Dye-Sensitized Solar Cells

  • Lee, Min-Woo;Cha, Su-Bong;Yang, Su-Jin;Park, Se-Woong;Kim, Kyung-Kon;Park, Nam-Gyu;Lee, Duck-Hyung
    • Bulletin of the Korean Chemical Society
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    • v.30 no.10
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    • pp.2269-2279
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    • 2009
  • Six metal-free organic dyes having thiophene (1), benzene-thiophene (2), thiophene-benzene (3), thiophene-pyridine (4), thiophene-thiophene (5), and pyridine (6) linkers between 9,9-dimethylfluorenyl terminal group and $\alpha$-cyanoacrylic acid anchor were synthesized. Among them, organic dye 5 showed the longest ${\lambda}_{max}$ value (424 nm) in UV-Vis absorption spectrum, better incident monochromatic photon-to-current conversion efficiency (IPCE), highest short circuit photocurrent density ($J_{SC},\;9.33\;mA^2/cm^2$), and highest overall conversion efficiency ($\eta$, 3.91%).