Acceleration and deceleration of photoinduced electron transfer rates by an electric field in porphyrin-fullerene dyads

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• 作者：Ohta ; Nobuhiro ; Mikami ; Satoshi ; Iwaki ; Yuji ; Tsushima ; Minoru ; Imahori ; Hiroshi ; Tamaki ; Koichi ; et. al.
• 刊名：Chemical Physics Letters
• 出版年：2003
• 期刊代码：7_00092614
• 类别：ph
• 出版时间：January 14, 2003
• 卷：368
• 期：1-2
• 页码：230-235
• 文件大小：142 K

摘要

Fluorescence of zinc porphyrin in zinc porphyrin–C₆₀ dyads is enhanced by applying an electric field (F) due to a field-induced deceleration of the electron transfer rate from the singlet excited state of zinc porphyrin to C₆₀ in the Marcus top region. Free-base porphyrin–C₆₀ dyads exhibit the opposite electric field effect, since the electron transfer from the singlet excited state of free-base porphyrin to C₆₀ is in the Marcus normal region far from the top.