Synthesis of Novel Phthalocyanines for Solar Cells and Their Spectroscopic and Electrochemical Properties

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  • SAKAMOTO Keiichi
    Department of Sustainable Engineering, College of Industrial Technology, Nihon University Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University
  • FURUYA Naoki
    Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University
  • SOGA Hisashi
    Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University

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  • 太陽電池用新規フタロシアニンの合成とその分光学および電気化学的性質
  • タイヨウ デンチヨウ シンキ フタロシアニン ノ ゴウセイ ト ソノ ブンコウガク オヨビ デンキ カガクテキ セイシツ

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Phthalocyanines have become of major interest as functional chromophore for dye sensitized solar cells. Absorption maxima of phthalocyanine is called Q band at around 650 nm, of which attributed to the highest occupied molecular orbital to the lowest unoccupied molecular orbital, π-π* transition. The Q band of phthalocyanines is able to move to longer wavelength through extension of π conjugation system. And then, it is reported that non-peripheral (1,4,8,11,15,18,22,25) position substituted phthalocyanine and high strain structural phthalocyanines were moved in the Q band to near-infrared region. Nonperipheral S-aryl substituted phthalocyanines showing near-infrared absorption were synthesized to develop new device for solar cells. The synthesized phthalocyanines were studied their spectroscopic and electrochemical properties.

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