標題: Synthesis and characterization of thiazole-containing chromophores for second-order nonlinear optics
作者: Wang, YK
Shu, CF
Breitung, EM
McMahon, RJ
應用化學系
Department of Applied Chemistry
公開日期: 1-七月-1999
摘要: Push-pull thiazole-containing nonlinear optical chromophores with dicyanovinyl and tricyanovinyl accepters, along with their thiophene analogs, have been synthesized and characterized. The onset temperatures of thermal decomposition of these chromophores determined by DSC are:above;240 degrees C. The;redox properties of the chromophores were studied by cyclic voltammetry and the results reveal the electron-deficient (thiazole) and electron-excessive (thiophene) nature of the heterocycles. Experimental measurements of second-order nonlinear optical response (mu.beta) indicate that the combination of either,a thiazole or thiophene conjugating,unit and a tricyanovinyl acceptor results in a nonlinear optical chromephore exhibiting substantial molecular hyperpolarizability (mu.beta ca 7000 x 10(-48) cm(6) at 1907 nm).
URI: http://dx.doi.org/10.1039/a900820i
http://hdl.handle.net/11536/31216
ISSN: 0959-9428
DOI: 10.1039/a900820i
期刊: JOURNAL OF MATERIALS CHEMISTRY
Volume: 9
Issue: 7
起始頁: 1449
結束頁: 1452
顯示於類別:期刊論文


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