Unsymmetrical Heptamethine Dyes for NIR Dye-Sensitized Solar Cells
Unsymmetrical Heptamethine Dyes for NIR Dye-Sensitized Solar Cells
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DOI：
10.1155/2014/258984
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发表时间：
2014-01-01
影响因子：
3.2
通讯作者：
Nueesch, Frank
中科院分区：
文献类型：
--
作者：
Geiger, Thomas;Schoger, Iuliia;Nueesch, Frank
合成并表征了七种具有羧酸官能团的不对称七次甲基染料。这些近红外染料因其杂环部分和分子结构而表现出出色的光物理性质。作为原理证明，这些染料被用作染料敏化太阳能电池中的光敏剂。使用最有前途的染料，实现了 1.22% 的整体转换效率和几乎无色的太阳能电池。
Seven unsymmetrical heptamethine dyes with carboxylic acid functionality were synthesized and characterized. These near-infrared dyes exhibit outstanding photophysical properties depending on their heterocyclic moieties and molecular structure. As proof of principle, the dyes were used as photosensitizers in dye-sensitized solar cells. Using the most promising dye, an overall conversion efficiency of 1.22% and an almost colorless solar cell were achieved.