Fluorescent cyclopentadithiophene derivatives having phenyl-substituted silyl moieties
摘要:
4,4-Dimethylcyclopenta[2,1-b:3,4-b']dithiophene derivatives bearing trimethyl-, dimethylphenyl-, diphenylmethyl-, or triphenyl-silyl moieties were synthesized. The introduction of the silyl moieties onto cyclopenta[2,1-b:3,4-b']dithiophene induced fluorescent emission as well as the bathochromic shift of wavelength at the maximum absorption and fluorescence. It was found that the larger number of phenyl group on silyl moiety resulted in the higher fluorescence quantum yield. (C) 2011 Elsevier Ltd. All rights reserved.
Fluorescent cyclopentadithiophene derivatives having phenyl-substituted silyl moieties
摘要:
4,4-Dimethylcyclopenta[2,1-b:3,4-b']dithiophene derivatives bearing trimethyl-, dimethylphenyl-, diphenylmethyl-, or triphenyl-silyl moieties were synthesized. The introduction of the silyl moieties onto cyclopenta[2,1-b:3,4-b']dithiophene induced fluorescent emission as well as the bathochromic shift of wavelength at the maximum absorption and fluorescence. It was found that the larger number of phenyl group on silyl moiety resulted in the higher fluorescence quantum yield. (C) 2011 Elsevier Ltd. All rights reserved.
The invention relates to novel polymers containing one or more units derived from fused bis(thienothiophene) moieties, methods for their preparation and monomers used therein, blends, mixtures and formulations containing them, the use of the polymers, blends, mixtures and formulations as semiconductor in organic electronic (OE) devices, especially in organic photovoltaic (OPV) devices, and to OE and OPV devices comprising these polymers, blends, mixtures or formulations.
The incorporation of tricoordinate boron into conjugatedsystems is of current interest in the field of organic electronics. In this study, a tricoordinate boron-embedded thiophene-based bistricyclic aromatic ene (BAE) was synthesized as a new boron-containing conjugatedsystem. The combination of tricoordinate boron and fused thiophene rings imposed the twisted conformation in the BAE structure, resulting