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Device Fabrication of insoluble donor-acceptor-donor structured molecule by pulsed laser deposition- A comparative study using different laser source

Swathi, SK and Rao, Arun D and Ranjith, K and Kumar, Rajneesh and Ramakrishna, SA and Ramamurthy, Praveen C (2013) Device Fabrication of insoluble donor-acceptor-donor structured molecule by pulsed laser deposition- A comparative study using different laser source. In: 2nd Conference of the Optics-and-Photonics-Society-of-Singapore / International Conference on Optics in Precision Engineering and Nanotechnology (icOPEN), APR 09-11, 2013, Singapore, SINGAPORE.

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Official URL: http://dx.doi.org/10.1117/12.2020753

Abstract

Many of the conducting polymers though having good material property are not solution processable. Hence an alternate method of fabrication of film by pulsed laser deposition, was explored in this work. PDTCPA, a donor-acceptor-donor type of polymer having absorption from 900 nm to 300 nm was deposited by both UV and IR laser to understand the effect of deposition parameters on the film quality. It was observed that the laser ablation of PDTCPA doesn't alter its chemical structure hence retaining the chemical integrity of the polymer. Microscopic studies of the ablated film shows that the IR laser ablated films were particulate in nature while UV laser ablated films are deposited as smooth continuous layer. The morphology of the film influences its electrical characteristics as current-voltage characteristic of these films shows that films deposited by UV laser are p rectifying while those by IR laser are more of resistor in nature.

Item Type: Conference Proceedings
Additional Information: Copyright of this article belongs to SPIE-International Society for Optical Engineering.
Keywords: Pulsed Laser Deposition; Donor-Acceptor-Donor Molecule; Morphological Studies
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Depositing User: Francis Jayakanth
Date Deposited: 22 Oct 2013 12:15
Last Modified: 25 Oct 2013 07:14
URI: http://eprints.iisc.ac.in/id/eprint/47560

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