Development of New Blue-Light Emitting PPV Block Copolymer: Synthesis, Characterization and Electro-Optical Studies

Vidya, G and Ramamurthy, PC (2018) Development of New Blue-Light Emitting PPV Block Copolymer: Synthesis, Characterization and Electro-Optical Studies. In: 4th IEEE International Conference on Emerging Electronics, ICEE 2018, 17-19 December 2018, Bengaluru.

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Abstract

New soluble intense blue light emitting bulky ring substituted segmented PPV block copolymer was synthesized by synthesized by using Horner-Emmons condensation polymerization. Rigid cyclohexyl methoxy group substituted distyrylbenzene unit was the chromophore group present in the synthesized segmented block copolymer. The obtained copolymer was dissolved in all common organic solvents. The structure of the copolymer was characterized by using FT-IR, NMR techniques, and elemental analysis. GPC analysis shows that the copolymer has narrow polydispersity index. Thermal gravimetric analysis shows it has excellent thermal stability with maximum decomposition temperature obtained as 422°C. The HOMO and LUMO values of copolymer were estimated from the cyclic voltammograms. Photoluminescence studies show that copolymer gives blue emission. XRD and DSC studies give information about the semi-crystalline nature of the present copolymer. Overall results such as thermal properties, photoluminescence characteristics and low onset voltage from Voltage vs. Current data are confirmed the suitability of the copolymer for fabricating PLEDs.

Item Type:	Conference Paper
Publication:	2018 4th IEEE International Conference on Emerging Electronics, ICEE 2018
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to the Institute of Electrical and Electronics Engineers Inc.
Keywords:	Chromophores; Gravimetric analysis; Organic light emitting diodes (OLED); Photoluminescence; Polycondensation; Thermogravimetric analysis, Decomposition temperature; Electro-optical studies; Light emitting polymer; Photoluminescence characteristics; Polydispersity indices; Polymer light emitting diode; Segmented block copolymers; Thermal gravimetric analysis, Block copolymers
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	30 Jul 2022 04:48
Last Modified:	30 Jul 2022 04:48
URI:	https://eprints.iisc.ac.in/id/eprint/75079

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