D-A dyad and D-A-D triad incorporating triphenylamine, benzanthrone and perylene diimide: Synthesis, electrochemical, linear and nonlinear optical properties

• Published in: Chemical physics letters 2017-08, Vol.682, p.133-139
• Main Authors: Cao, Liu, Xu, Liang, Zhang, Dingfeng, Zhou, Yecheng, Zheng, Yusen, Fu, Qinrui, Jiang, Xiao-Fang, Lu, Fushen
• Format: Article
• Language: English
• Subjects: Benzanthrone; Non-linear optics; Perylene diimide; Triphenylamine; Two-photon absorption
• ISSN: 0009-2614; 1873-4448
• DOI: 10.1016/j.cplett.2017.06.015

The symmetric D-A-D triads and asymmetric D-A dyads incorporating triphenylamine donor and benzanthrone or perylene diimide acceptor have been designed and synthesized. The photophysical and electrochemical properties, Gaussian calculation and third-order nonlinear optical properties have been studied. Among them, the symmetric D-A-D type molecule with a linear configuration shows the largest 2PA coefficient and 2PA cross section value. [Display omitted] •D-A dyad and D-A-D triad with “V” and “Z” configurations have been obtained.•The photoelectric property could be effectively adjusted by adding a second donor.•The symmetric and linear molecular configuration shows a larger 2PA cross section. To study the relationship between donor (D)-acceptor (A) structures and the third-order nonlinear optical property, two types of D-A and D-A-D structures based on triphenylamine-substituted chromophores with benzanthrone or perylene diimide (PDI) acceptors have been designed and synthesized. Among them, D-A-D type chromophores with a linear configuration show relatively larger two-photon absorption (2PA) coefficient and 2PA cross section value.