Design and synthesis of novel NLO chromophores for ultrafast E-O applications
Organic second order nonlinear optical (NLO) polymers have been the subject of intense studies for thepast twenty years due to their potential uses in next generation ultra-fast electro-optic (e-o) modulations (e.g.>100 GHz). Recently, research breakthroughs have been made in achieving NLO polymers with large e-ocoefficients (e.g. R33 > 300 pm/V) and e-o devices with low operation voltage (e.g. Vπ <1 V) and highbandwidth.1 However, practical industrial applications of polymer-based e-o modulators are still awaiting novelNLO polymers with excellent comprehensive materials properties. In order to achieve highly efficient NLOpolymers, one of the most important challenges has been to obtain a highly efficient organic NLO chromophore.In this regard, it has been theoretically predicted that dipolar chromophores having auxiliary donor and acceptorsin the structure would have significantly large optical nonlinearities,2 Based on these results, we have recentlydesigned and synthesized a novel series of NLO chromophores bearing the most electron-rich heterocyclicpyrrole as the auxiliary donor and electron-deficient thiazoles as the auxiliary acceptor. In corporation of thesechromophores into polymer matrices has led to a new type of NLO polymers with good comprehensiveproperties.
Xiaohua Ma Zhenhua Zhao Aixin Zhang Naiheng Song
Beijing National Laboratory for Molecular Sciences,Key Laboratory of Polymer Chemistry and Physics of Ministry of Education,Department of Polymer Science and Engineering,College of Chemistry and Molecular Engineering,Peking University Beijing 100871 China
国际会议
5th East-Asian Polymer Conference(第5届东亚高分子学术研讨会)
上海
英文
93-94
2008-06-03（万方平台首次上网日期，不代表论文的发表时间）