Please use this identifier to cite or link to this item: http://idr.nitk.ac.in/jspui/handle/123456789/13251
Title: Synthesis and third order optical nonlinearity studies of the donor-acceptor conjugated polymer, poly(2-[3,4-didodecyloxy-5-(1,3,4-oxadiazol- 2-yl)thiophen-2-yl]-5-phenyl-1,3,4-oxadiazole) and a polymer/TiO2 nanocomposite
Authors: Murali, M.G.
Ramya, M.G.
Udayakumar, D.
Lakshmi, N.B.
Philip, R.
Issue Date: 2010
Citation: Synthetic Metals, 2010, Vol.160, 23-24, pp.2520-2525
Abstract: A donor-acceptor conjugated polymer (PDOThPOD) containing 3,4-didodecyloxythiophene and (1,3,4-oxadiazolyl)benzene units is synthesized by using precursor polyhydrazide route. Cyclic voltammetry studies reveal that the polymer possesses a low-lying LUMO energy level (-3.57 eV). A nanocomposite of polymer PDOThPOD and nano TiO2 is also prepared. The linear optical properties of PDOThPOD and the nanocomposite are studied using UV-vis absorption spectroscopy and fluorescence emission spectroscopy. z-scan technique is used to study the third order nonlinear optical properties of the polymer and nanocomposite films. Both polymer and nanocomposite films show a strong optical limiting behavior. The value of nonlinear absorption coefficient (?) is found to be of the order of 10-7 m/W, indicating that these materials are potentially suited for fabricating optical limiters. 2010 Elsevier B.V. All rights reserved.
URI: http://idr.nitk.ac.in/jspui/handle/123456789/13251
Appears in Collections:1. Journal Articles

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