A new approach for designing second-order NLO chromophores exhibiting both high nonlinearity and wide transparence by using combined conjugation bridges

摘要

One of the major challenges in organic and polymeric second-order nonlinear optical (NLO) materials is to design and synthesize second-order NLO chromophores simultaneously exhibiting large first molecular hyperpolarizability (β), high chemical and thermal stability, and good optical transparency.