Impact of terminal substituents on the electronic, vibrational and optical properties of thiophene–phenylene co-oligomers
作者:Andrey Yu. Sosorev、Muzaffar K. Nuraliev、Elizaveta V. Feldman、Dmitry R. Maslennikov、Oleg V. Borshchev、Maxim S. Skorotetcky、Nikolay M. Surin、Maxim S. Kazantsev、Sergei A. Ponomarenko、Dmitry Yu. Paraschuk
DOI:10.1039/c9cp00910h
日期:——
conjugation length of the substituted oligomer. A detailed picture underlying the effect of the terminal substituents on the electronic, vibrational and optical properties of TPCOs is presented. Overall, the unraveled relationships between the structure and the properties of the substituted PTTPs should facilitate a rational design of π-conjugated (co-)oligomers for efficient organic optoelectronic
P-Alkoxyphenylen-Thiophene Oligomers as Organic Semiconductors for Use in Electronic Devices
申请人:Goldfinger B. Marc
公开号:US20070290198A1
公开(公告)日:2007-12-20
This invention provides phenylene-thiophene compounds that exhibit useful electronic properties such as high mobility and high on/off ratio. The invention also provides electronic devices incorporating these compounds. These devices include field effect transistors (FETs), thin film transistors (TFTs), display devices, light-emitting diodes, photovoltaic cells, photo-detectors, and memory cells. Further, the invention also describes a method for manufacturing these field effect transistors. The invention describes an electronic device comprising one or more compounds represented by Formula:(I) where R is selected from substituents comprising 1-20 carbon atoms, wherein the substituents are selected from substituted or unsubstituted alkyl groups, substituted or unsubstituted alkenyl groups, and substituted or unsubstituted alkynyl groups; n is an integer selected from 2 through 6; and m and m′ are integers selected independently from 1 through 3.
Oligo-p-phenylenes have proven to be versatile building blocks for the generation of self-assembled nanoaggregates via vapour deposition on solid supports whose optical properties and morphologies can be influenced by the introduction of functional groups. These aggregates show strong polarized luminescence and they have been demonstrated to have wave-guiding, lasing and even non-linear optical properties (e.g., frequency doubling) when the molecular building blocks are suitably functionalized. Thus, there is a demand for the synthesis of further functionalised p-phenylenes because similar properties can be expected from derivatives incorporating heteroaryl groups in the oligoarylene scaffold such as thiophenes, pyridines or carbazole units. The synthesis of such derivatives using a reliable Suzuki cross-coupling strategy is presented here.