Goswami, Mrinmoy and Ghosh, Ranajit and Maruyama, Takahiro and Meikap, Ajit Kumar (2016) Polyaniline/carbon nanotube/CdS quantum dot composites with enhanced optical and electrical properties. Applied Surface Science, 364. pp. 176-180.

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A new kind of polyaniline/carbon nanotube/CdS quantum dot composites have been developed via in-situ polymerization of aniline monomer in the presence of dispersed CdS quantum dots (size: 2.7–4.8 nm) and multi-walled carbon nanotubes (CNT), which exhibits enhanced optical and electrical properties. The existences of 1st order, 2nd order, and 3rd order longitudinal optical phonon modes, strongly indicate the high quality of synthesized CdS quantum dots. The occurrence of red shift of free exciton energy in photoluminescence is due to size dependent quantum confinement effect of CdS. The conductivity of the composites (for example PANI/CNT/CdS (2 wt.% CdS)) is increased by about 7 of magnitude compared to that of pure PANI indicating a charge transfer between CNT and polymer via CdS quantum dots. This advanced material has a great potential for high-performance of electro-optical applications.

Item Type: Article
Subjects: Materials
Depositing User: Dr. Sarita Ghosh
Date Deposited: 10 Jul 2017 10:20
Last Modified: 10 Jul 2017 10:20
URI: http://cmeri.csircentral.net/id/eprint/406

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