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Development of New Fullerene-based Electron Acceptors for Efficient Organic Photovoltaic Cells

  • Yutaka Matsuo (a1)

Abstract

This article describes design of fullerene-based electron-accepting materials to obtain high performance in organic thin-film photovoltaic devices. A 1,4-bis(dimethylphenylsilylmethyl)[60]fullerene gives higher open circuit voltage than 1,2-diadduct because of smaller π-conjugated systems, and enables columnar fullerene-core array for high electron mobility and thermal crystallization for ideal phase separation with electron-donor materials. A 56π-electron fullerene derivative possessing the dihydromethano group as the smallest carbon addend does not disrupt fullerene-fullerene contact in solid state, giving high open-circuit voltage without decreasing of short-circuit current density and fill factor.

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Development of New Fullerene-based Electron Acceptors for Efficient Organic Photovoltaic Cells

  • Yutaka Matsuo (a1)

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