Tunable, strongly-donating perylene photosensitizers for dye-sensitized solar cells
Tunable, strongly-donating perylene photosensitizers for dye-sensitized solar cells
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DOI：
10.1039/c1jm10993f
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发表时间：
2011-05
影响因子：
--
通讯作者：
S. Mathew;H. Imahori
中科院分区：
文献类型：
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作者：
S. Mathew;H. Imahori
采用Sonogashira偶联法合成了含3 -三芳胺基的宽吸收苝染料。三芳胺部分允许进一步安装供电子能力，使氧化电位和光带隙的调整。在3 -三芳胺基团中引入更多的给电子基团，提高了器件的性能。这一趋势可以从苝分子HOMO的电子密度分布和苝染料的捕光性能来解释。
Broadly absorbing perylene dyes bearing three-triarylamine groups were synthesized via Sonogashira coupling. The triarylamine moieties allowed further installation of electron donating ability, to enable tuning of the oxidation potential and optical band gap. With introducing more electron-donating groups into the three-triarylamine moieties the device performance was improved. The trend can be rationalized by the distribution of the electron density in the HOMO of the perylene moiety as well as the light-harvesting property of the perylene dyes.