Journal ArticleDOI
Synthesis, Structure and Band Gapof Novel Thiophene Based Conductive Polymers
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TLDR
In this article, a novel poly 3-(2-benzo thiazolyl) thiophene based conductive polymer have been synthesized and characterized using various experimental techniques.Abstract:
A novel poly 3-(2-benzo thiazolyl) thiophene based conductive polymer have been synthesized and characterized using various experimental techniques. The structure and band gap (difference between Highest Occupied Molecular Orbital and Lowest Unoccupied Molecular Orbital) for the above polymer have been calculated using oligomeric approach employing B3LYP/3-21G* method and semi-empirical AMI and ZINDO methods. The calculated band gap for monomer dimer and trimer has been plotted versus 1/N (where N is the number units). The value at 1/N = 0, is taken as the band gap of the polymer having long chain length. It is evident from the theoretical investigations, the hand gap of poly 3-(2-benzothiazolyl) thiophene is 3.77eV. It is possible to change the band gap by designed alteration in the thiophene framework.read more
Citations
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Ultraviolet photoemission and electron loss spectroscopy of oligothiophene films
Amol Chandekar,James E. Whitten +1 more
TL;DR: In this article, the authors used ultraviolet photoelectron spectroscopy (UPS) to study the evolution of the valence electronic states as a function of conjugation length for short-chain oligothiophenes.
Journal ArticleDOI
Optical properties of functionalized polythiophenes
N. Somanathan,S. Radhakrishnan +1 more
TL;DR: In this article, the influence of the optical properties of polythiophene on the different functional groups present in the thiophene ring was reviewed, where the authors focused on the interrelation between the influences of polymeric structure on the optical property.
Journal ArticleDOI
Poly(thiophenes) functionalised with thiazole heterocycles as electroluminescent polymers
S. Radhakrishnan,N. Somanathan +1 more
TL;DR: In this article, the influence of structure on the optical characteristics of poly(thiophene)s bearing electron-deficient side chains was studied in detail using molecular orbital calculations, and the results indicated that substituting appropriate heteroaromatic groups to the thiophene chain can enhance electro-emission, even with a single emissive layer, in PLEDs.
Journal ArticleDOI
Chemiresistor Sensors Based on Conducting Polymers for Hypergolic Propellants and Acidic Vapors of Rocket Exhaust Plumes – A Review
Journal ArticleDOI
Structure-property relationships of electroluminescent polythiophenes: role of nitrogen-based heterocycles as side chains
TL;DR: A series of conjugated polythiophenes containing nitrogen-containing heterocycles as side chain, with differing substituent nature and linkage have been studied using quantum-chemical calculations as mentioned in this paper.
References
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Book
Handbook of conducting polymers
TL;DR: In this paper, the authors presented the theory and properties of conjugated polymers, including transport, optical, and self-assembly properties of poly(3,4-Ethylenedioxythiophene)-polymers.