Volume : IV, Issue : XI, November - 2015

Photophysical and Elecroluminescent properties of PQ

Pratima V. Damre, Dr. V. M. Raut

Abstract :

The thermal, electrochemical, photophysical, and electroluminescent properties of the new polyquinolines varied with the arylene linkage, including p-phenylene,4,4′-biphenylene,stilbene,5,5′-bithienylene,bis(thienyl)vinylene,and3,7- phenothiazinylene. The new conjugated polymers combined high glass transition temperature (110-254 C) with quasireversible electrochemical reduction from which 2.72-3.00 eV electron affinities were estimated. The optical band gap varied from 2.19 to 2.86 eV whereas the photoluminescence emission maximum varied from blue-green (477 nm) to deep red (646 nm). Some of the new polymers with alternating donoracceptor architecture showed strong intramolecular charge transfer. Electroluminescence of moderate ightness (up to 209 cd/m2) was achieved with blue-green, green, yellow, orange, and deep red colors depending on the arylene linkage of the copolymer.

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Article: Download PDF    DOI : https://www.doi.org/10.36106/gjra  

Cite This Article:

Pratima V.Damre, Dr.V.M.Raut Photophysical and Elecroluminescent Properties of PQ Global Journal For Research Analysis, Vol: 4, Issue: 11 November 2015

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