Absorption Tuning of Monosubstituted Triazatruxenes for Bulk Heterojunction Solar Cells

作者：Bura Thomas; Leclerc Nicolas; Fall Sadiara; Leveque Patrick; Heiser Thomas; Ziessel Raymond^*

来源：Organic Letters, 2011, 13(22): 6030-6033.

DOI：10.1021/ol202443g

A series of triazatruxene (TAT)-functionalized Bodipy dyes were prepared by a sequence of reactions involving either cross-coupling reactions promoted by Pd complexes or a Knoevenagel reaction leading to a vinyl linker. The new dyes show large absorption coefficients and fluorescence quantum yields as well as interesting electrochemical properties. The blue dyes of this series exhibit interesting photovoltaic effects (V-oc = 0.83 V, J(sc) = 3.6 mA/cm(2), efficiency 0.9%) in bulk heterojunction solar cells, due to the good hole mobility imported by the TAT entity.

• 出版日期2011-11-18