Donor−Acceptor-Substituted Phenylethenyl Bithiophenes: Highly Efficient and Stable Nonlinear Optical Chromophores
Organic Letters1999Vol. 1(11), pp. 1847–1849
Citations Over TimeTop 11% of 1999 papers
Chengzhi Cai, Ilias Liakatas, Man Shing Wong, Martin Bösch, Christian Bosshard, Peter Günter, Simona Concilio, Nicola Tirelli, Ulrich W. Suter
Abstract
For practical applications of poled electrooptic polymers, highly efficient and thermally stable nonlinear optical (NLO) chromophores are required. We describe here a concise synthesis and characterization of a series of donor−acceptor chromophores incorporating a bithiophene moiety in the conjugated bridge. They display a suitable thermal stability and significantly enhanced molecular nonlinearity as compared to their monothiophene analogues and are among the most efficient yet stable NLO chromophores prepared so far.
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