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Title: | A new nonlinear optically active donor-acceptor-type conjugated polymer: Synthesis and electrochemical and optical characterization |
Authors: | Manjunatha, M.G. Adhikari, A.V. Hegde, P.K. Suchand, Sandeep, C.S. Philip, R. |
Issue Date: | 2010 |
Citation: | Journal of Electronic Materials, 2010, Vol.39, 12, pp.2711-2719 |
Abstract: | A new donor-acceptor-type poly[3-{5-[3,4-didodecyloxy-5-(1,3,4-oxadiazol- 2-yl)thiophen-2-yl]-1,3,4-oxadiazol-2-yl}-9-dodecyl-9H-carbazole] (P) has been synthesized through multistep reactions. The new polymer P exhibited good thermal stability and film-forming behavior. The electrochemical band gap is estimated to be 2.15 eV. The polymer emits intense green fluorescence in the solid state. Third-order nonlinear optical (NLO) studies showed that the strong absorptive nonlinearity observed for the polymer is of the optical limiting type, which is due to an "effective" three-photon absorption (3PA) process. This 3PA process can have potential applications in photonic devices. The studies revealed that the new polymer P is a promising material for development of efficient optoelectronic devices. � 2010 TMS. |
URI: | http://idr.nitk.ac.in/jspui/handle/123456789/7030 |
Appears in Collections: | 2. Conference Papers |
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