53229-47-3Relevant articles and documents
Synthesis and characterization of three thienopyridazine-based copolymers and their application in OFET
Lim, Chia Juan,Li, Lu,Lei, Yanlian,Zhou, Feng,Wu, Bo,Liu, Xuyao,Zhu, Furong,Ong, Beng S.,Hu, Xiao,Su, Haibin,Ng, Siu-Choon
, p. 1523 - 1527 (2016)
Three low band gap thienopyridazine-based donor-acceptor conjugated polymers, PDTTPTT, PDTTPBT, and PDTTPBDT were synthesized by the Stille copolymerization of thienopyridazine with thienothiophene, benzodithiophene, and bithiophene, respectively. The optical band gaps of PDTTPTT, PDTTPBT, and PDTTPBDT polymers were determined as 1.41 eV, 1.43 eV, and 1.58 eV, respectively by UV absorption. The deep HOMO level of the three polymers was determined by cyclic voltammetry. The three polymers were fabricated to form organic field-effect transistors and their performance as p-type semiconductors were studied.
ORGANIC ELECTRONIC DEVICES AND POLYMERS, INCLUDING PHOTOVOLTAIC CELLS AND DIKETONE-BASED POLYMERS
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Page/Page column 98, (2011/04/14)
Polymers which can be used in p-type materials for organic electronic devices and photovoltaic cells. Compounds, monomers, dimers, trimers, and polymers comprising formula (I); Good photovoltaic efficiency and lifetime can be achieved. The R group can provide solubility, environmental stability, and fine tuning of spectroscopic and/or electronic properties. Different polymer microstructures can be prepared which encourage multiple band gaps and broad and strong absorptions. The carbonyl can interact with adjacent thiophene rings to provide backbone with rigidity, induce planarity, and reduce and/or eliminate intramolecular chain twisting defects. Polymers comprising benzodithiophene and/or benzothiadiazole structures can show particularly high performance.
Preparation and Characterisation of Thienonaphthoquinones and their Radical Ions
Crayston, Joe A.,Iraqi, Ahmed,Mallon, Philip,Walton, John C.
, p. 1589 - 1596 (2007/10/02)
Three naphthothiophene-4,9-diones (thienonaphthoquinones) have been prepared and their redox properties studied by chemical, electrochemical and EPR spectroscopic methods.All three quinones were readily reduced electrochemically to the corresponding radical anions and subsequently to dianions.The cyclic voltammograms showed evidence of ion pairing of the dianions.All three quinones were also electrochemically oxidised to radical cations.The structures and thermodynamic properties of the quinones, the radical cations, radical anions and dianions were studied by the semi-empirical AM1 method.The experimental redox potentials were found to correlate with the computed energies of the appropriate frontier MOs.The electrochemically generated radical anions were observed by EPR spectroscopy and shown to decay with second-order kinetics.The rate constants increased as the electron-releasing character of the substituents in the benzene ring increased.The only EPR spectroscopically detectable radical cation was that from the 6,7-dimethoxynaphthothiophene-4,9-dione.Attempts by electrochemical and chemical methods to polymerise the thienonaphthoquinones were unsuccessful.
