Optical Features of Substituted Phenyl End-Capped Oligothiophenes
نویسندگان
چکیده
منابع مشابه
Optical Features of Substituted Phenyl End-Capped Oligothiophenes
A series of phenyl end-capped oligothiophenes has been synthesized and a study of the absorption and emission properties has been carried out; the photoluminescence quantum yield has been measured both in solution and in solid state. The characterization, supported by DFT calculations, highlights a strong relationship between the optical features and the differences in the chemical structure. T...
متن کاملSubstrate steered crystallization of naphthyl end-capped oligothiophenes into nanofibers: the influence of methoxy-functionalization.
Naphthyl end-capped oligothiophenes are a class of materials well suited for high-performance organics based devices. The formation of nanofibers on muscovite mica from 2,5-bis(naphth-2-yl)thiophene (NaT), 5,5'-bis(naphth-2-yl)-2,2'-bithiophene (NaT2), and 5,5''-bis(naphth-2-yl)-2,2':5',2''-terthiophene (NaT3) as well as of the methoxy-functionalized variants MONaT, MONaT2, and MONaT3 is invest...
متن کاملSpectral dependence of nonlinear optical properties of symmetrical octatetraynes with p-substituted phenyl end-groups.
Organic compounds containing conjugated carbon chains have been extensively investigated due to their interesting properties including nonlinear optical response. Polyynes are a group of compounds where the conjugation can be modified by appropriate selection of end-groups, enabling "control" and improvement of nonlinear effects. In this work, we investigate three newly synthesized aryl end-cap...
متن کاملDual fluorescence of 9 - anthryl - substituted oligothiophenes in nonpolar environment
9-Anthryl-oligothiophenes (9A-T., n= l-4) have been studied in n-hexane solution between helium and room temperature using absorption, fluorescence emission and excitation spectra and time resolved fluorescence measurements. These compounds are reference systems for studies on intramolecular energy and charge transfer in donor/acceptor-substituted conjugated chain molecules. The absorption spec...
متن کاملCapped Optical Polymeric Waveguide
We present here a new type of polymer waveguides (i.e., capped waveguide) fabricated using contact photolithography with considerable performance improvement over the conventional waveguides. We also show that by simultaneous patterning of the core and the top cladding in capped waveguides, we can considerably reduce the effect of fabrication defects and reduce the propagation lose by at least ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Open Chemical Physics Journal
سال: 2008
ISSN: 1874-4125
DOI: 10.2174/1874412500801010023