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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3960
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dc.contributor.authorHegde, Pramod Kumar-
dc.contributor.authorAdhikari, A.V.-
dc.contributor.authorManjunatha, M.G.-
dc.contributor.authorSuchand Sandeep, C.S.-
dc.contributor.authorPhilip, Reji-
dc.date.accessioned2011-01-20T09:07:10Z-
dc.date.available2011-01-20T09:07:10Z-
dc.date.issued2010-09-05-
dc.identifier.citationJournal of Applied Polymer Science , 2010, Vol. 117, p2641en
dc.identifier.issn1097-4628-
dc.identifier.urihttp://hdl.handle.net/2289/3960-
dc.descriptionRestricted Access.en
dc.description.abstractThree new donor–acceptor type poly{2,2l-(3,4- dialkoxythiophene-2,5-diyl)bis[5-(2-thienyl)-1,3,4-oxadiazole]}s (P1, P2, and P3) were 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 properties of the polymers were investigated by UV-visible, fluorescence emission spectroscopic and cyclic voltammetric studies. The polymers showed bluish-green fluorescence in solutions. The electrochemical band gaps were determined to be 2.03, 2.09, and 2.17 eV for P1, P2, and P3, respectively. The nonlinear optical properties of new polymers were investigated at 532 nm using single beam Z-scan and degenerate four-wave mixing (DFWM) techniques with nanosecond laser pulses. The polymers exhibited strong optical limiting behavior due to “effective” three-photon absorption. Values of the effective three-photon absorption (3PA) coefficients, third-order nonlinear susceptibilities (χ(3)), and figures (F) of merit were calculated.en
dc.language.isoenen
dc.publisherJohn Wileyen
dc.relation.urihttp://dx.doi.org/10.1002/app.30926en
dc.rights2010 Wiley Periodicals, Incen
dc.subjectconjugated polymeren
dc.subjectsynthesisen
dc.subject3,4-dialkoxythiopheneen
dc.subjectNLOen
dc.subject3PAen
dc.titleNonlinear optical studies on new conjugated poly{2,2l-(3,4- dialkoxythiophene-2,5-diyl) bis[5-(2-thienyl)-1,3,4-oxadiazole]}sen
dc.typeArticleen
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