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Title: | Synthesis and characterization of a new conjugated polymer bearing pyrazole and thiophene moieties as potent NLO material |
Authors: | Vishnumurthy, K.A. Adhikari, A.V. Sunitha, M.S. Philip, Reji |
Keywords: | polymers electrical conductivity nonlinear optics oxidation polymer blends |
Issue Date: | Oct-2011 |
Publisher: | American Chemical Society |
Citation: | AIP Conference Proceedings, 2011, Vol.1391, p652-654 |
Abstract: | In this communication we describe the design and synthesis of a new conjugated polymer (P) carrying 3,4-dialkoxythiophene, 1,3,4 oxadiazole and pyrazole units, from its monomers through condensation polymerization method. The structure of newly synthesized polymer was established by FT-IR, 1H NMR, elemental analysis and gel permeation chromatographic techniques. Further, its electrochemical, linear and nonlinear optical properties of the polymer have been investigated. The optical and electrochemical band gap was found to be 2.39 eV. Z-scan results reveal that the polymer exhibits strong optical limiting behavior due to effective three-photon absorption (3PA). The value of 3PA coefficient was found to be 1.1×10-20 m3/W2, which is comparable to that of good optical limiting materials. The fluorescence quantum yield of the polymer in solution was determined using quinine sulfate as standard and it was found to be 42%. |
Description: | Restricted Access.Proceedings of AIP Conference Proceedings Vol.1391 on optics: phenomena, materials, devices, and characterization: Optics 2011: International Conference on Light Solid State Physics, P-652 |
URI: | http://hdl.handle.net/2289/5278 |
ISBN: | 978-0-7354-0960-6 |
Alternative Location: | http://adsabs.harvard.edu/abs/2011AIPC.1391..652V http://dx.doi.org/10.1063/1.3643638 |
Copyright: | 2011 American Institute of Physics |
Appears in Collections: | Research Papers (LAMP) |
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2011_AIP Conference Proceedings_Vol.1391_p652.pdf Restricted Access | Restricted Access | 254.02 kB | Adobe PDF | View/Open Request a copy |
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