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From analyses of molecular vibrations, we have studied rapid energy transfer (ET) process in a series of star‐shaped stilbenoid phthalocyanines (SSSnPc;n=1,2) having π‐conjugated light harvesting antennas. In SSSnPc, the highly efficient ET occurs through a π‐conjugation network between the core and the antenna. However, a different temperature dependency of the ET efficiencies were found between...
We investigated rapid energy transfer (ET) processes in dendrimers having meta ‐linked branching light harvesting antennas. It was found that, at room temperature (RT), the rapid ET occurs efficiently from the antennas to the core and gives rise to intense core‐PL bands under the selective excitation on the antenna. However, the ET efficiency impairs at lower temperatures than ∼100 K.
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