Synthesis of a novel heptamethine-cyanine dye for use in near-infrared active dye-sensitized solar cells with porous zinc oxide prepared at low temperature
Synthesis of a novel heptamethine-cyanine dye for use in near-infrared active dye-sensitized solar cells with porous zinc oxide prepared at low temperature
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DOI：
10.1039/c1ee01141c
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发表时间：
2011-06-01
影响因子：
32.5
通讯作者：
Matsui, Masaki
中科院分区：
文献类型：
--
作者：
Funabiki, Kazumasa;Mase, Hiroyoshi;Matsui, Masaki
摘要合成了一种新型的含4个正丁基的近红外吸收七亚甲基-菁染料（KFH-3），用于低温多孔氧化锌（ZnO）制备的高效染料敏化太阳能电池。该染料的转换效率为1.23% (am1.5)，入射光电流转换效率（800 nm）为33%，短路光电流密度为3.34 mA，开路光电压为0.49，光敏化效率为0.49。填充系数为0.76，几乎完全利用太阳光的近红外区域。
A novel near-infrared-absorbing heptamethine-cyanine dye (KFH-3) that contains four n-butyl groups was synthesized for use in highly efficient dye-sensitized solar cells with porous zinc oxide (ZnO) prepared at low temperature, and resulted in remarkable performance characteristics, such as a conversion efficiency of 1.23% (AM 1.5) with an incident photon-to-current conversion efficiency (800 nm) of 33%, a short-circuit photocurrent density of 3.34 mA, an open-circuit photovoltage of 0.49, and a fill factor of 0.76, using almost solely the near-infrared region of sunlight.