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Synthesis and Characterization of Dendritic Architecture Containing Push-Pull Conjugated Organic Chromophore Possessing Nonlinear Optical Property

Published online by Cambridge University Press:  01 February 2011

Jin Joo Choi
Affiliation:
dongwook@krict.re.kr, Korea Research Institute of Chemical Technology, Advanced Materials Division, 100 Jangdong, Yusungku, Daejeon, N/A, 305-600, Korea, Republic of, 82-42-860-7206, 82-42-861-4151
Jong Sun Lim
Affiliation:
dongwook@krict.re.kr, Korea Research Institute of Chemical Technology, Advanced Materials Division, 100 Jangdong Yusungku, Daejeon, N/A, 305-600, Korea, Republic of
Changjin Lee
Affiliation:
dongwook@krict.re.kr, Korea Research Institute of Chemical Technology, Advanced Materials Division, 100 Jangdong Yusungku, Daejeon, N/A, 305-600, Korea, Republic of
Dong Wook Kim
Affiliation:
dongwook@krict.re.kr, Korea Research Institute of Chemical Technology, Advanced Materials Division, 100 Jangdong Yusungku, Daejeon, N/A, 305-600, Korea, Republic of
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Abstract

We designed and synthesized a dendritic architecture in which three branches of the NLO-active component consisting of push-pull type conjugated structure were linked onto its core. Chemical structure of the dendritic nonlinear optical (NLO) chromophore was verified by NMR spectroscopy, which clearly showed that the conjugated bridge had a trans-conformation. The dendrimer exhibited that the broad absorption band centered at around 608 nm extending to 760 nm. It was thermally stable up to 275 °C in the nitrogen atmosphere. Polymer film was prepared by spincoating the solution of mixture of amorphous polycarbonate (APC) and the dendritic chromophore, which exhibited an electro-optic coefficient of 19 pm/V at 1.55 μm wavelength.

Type
Research Article
Copyright
Copyright © Materials Research Society 2006

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