Journal
CHEMISTRY LETTERS
Volume 41, Issue 8, Pages 754-759Publisher
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.2012.754
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- Program for Next-Generation World-Leading Researchers
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This review article describes design concept, synthesis, and features of fullerene derivatives having high lowest unoccupied molecular orbital (LUMO) levels to achieve high open-circuit voltage in organic thin-film photovoltaic devices. Installation of organic electron-donating groups onto fullerene and decrease of the size of the fullerene pi-electron-conjugated system raise the LUMO levels, affording high-performance organic solar cells. Addition of the methano group as the smallest carbon addend to fullerene to obtain 56 pi-electron fullerene derivatives is likely a promising strategy for this purpose.
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