Effect of thermal annealing on exciton diffusion in a diketopyrrolopyrrole derivative
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چکیده
منابع مشابه
Effect of thermal annealing on exciton diffusion in a diketopyrrolopyrrole derivative.
We show that the method we have developed for measuring the singlet exciton diffusion length in blends with [6,6]-phenyl-C(61)-butyric acid methyl ester (PCBM) can be applied not only to polymeric materials, but also to small molecule organic semiconductors. Small organic molecules have a large potential for molecular re-organization upon thermal annealing. Here we show that the exciton diffusi...
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Singlet exciton diffusion was studied in the efficient organic photovoltaic electron donor material DTS(FBTTh2)2. Three complementary time-resolved fluorescence measurements were performed: quenching in planar heterojunctions with an electron acceptor, exciton-exciton annihilation, and fluorescence depolarization. The average exciton diffusivity increases upon annealing from 1.6 × 10-3 to 3.6 ×...
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ژورنال
عنوان ژورنال: Physical Chemistry Chemical Physics
سال: 2012
ISSN: 1463-9076,1463-9084
DOI: 10.1039/c2cp41359k