Synthesis and nonlinear optical characterization of new poly{2,2′-(3,4-didodecyloxythiophene-2,5-diyl)bis[5-(2-thienyl)-1,3,4-oxadiazole]}

Hegde, Pramod Kumar; Adhikari, A.V.; Manjunatha, M.G.; Suchand Sandeep, C.S.; Philip, Reji

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3823

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DC Field	Value	Language
dc.contributor.author	Hegde, Pramod Kumar	-
dc.contributor.author	Adhikari, A.V.	-
dc.contributor.author	Manjunatha, M.G.	-
dc.contributor.author	Suchand Sandeep, C.S.	-
dc.contributor.author	Philip, Reji	-
dc.date.accessioned	2009-07-31T11:06:48Z	-
dc.date.available	2009-07-31T11:06:48Z	-
dc.date.issued	2009-06	-
dc.identifier.citation	Synthetic Metals, 2009, Vol.159, p1099	en
dc.identifier.issn	0379-6779	-
dc.identifier.uri	http://hdl.handle.net/2289/3823	-
dc.description	Restricted Access.	en
dc.description.abstract	A new donor–acceptor type poly{2,2′-(3,4-didodecyloxythiophene-2,5-diyl)bis[5-(2-thienyl)-1,3,4-oxadiazole]} (P) was synthesized starting from thiodiglycolic acid and diethyl oxalate through multistep reactions. The polymerization was carried out using chemical polymerization technique. The optical and charge-transporting property of the copolymer was investigated by UV–vis, fluorescence emission spectroscopic and cyclic voltammetric studies. The copolymer shows UV absorption maxima at 375 nm and displays bluish-green fluorescence in DMF solution. Its electrochemical band gap was determined to be 2.07 eV. The nonlinear optical (NLO) properties of the copolymer was investigated at 532 nm using single beam Z-scan and degenerate four-wave mixing (DFWM) techniques with nanosecond laser pulses. The copolymer exhibits strong optical limiting behavior due to effective three-photon absorption (3PA). Values of the effective 3PA coefficient (γ), third-order nonlinear susceptibility (χ(3)) and figure of merit (F) have been calculated.	en
dc.language.iso	en	en
dc.publisher	Elsevier B.V.	en
dc.relation.uri	http://dx.doi.org/10.1016/j.synthmet.2009.01.034	en
dc.rights	2009 Elsevier B.V.	en
dc.subject	Donor–acceptor copolymer	en
dc.subject	3,4-Dialkoxythiophene	en
dc.subject	NLO properties	en
dc.subject	Effective 3PA; DFWM	en
dc.title	Synthesis and nonlinear optical characterization of new poly{2,2′-(3,4-didodecyloxythiophene-2,5-diyl)bis[5-(2-thienyl)-1,3,4-oxadiazole]}	en
dc.type	Article	en
Appears in Collections:	Research Papers (LAMP)

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