Tuning Nonlinear Optical Behavior by Incorporation of the Chalcogenophene into Twistacenes,The Journal of Physical Chemistry B

当前位置： X-MOL 学术 › J. Phys. Chem. B › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Tuning Nonlinear Optical Behavior by Incorporation of the Chalcogenophene into Twistacenes
The Journal of Physical Chemistry B ( IF 2.8 ) Pub Date : 2020-11-12 , DOI: 10.1021/acs.jpcb.0c07421
Yanbing Han ₁ , Jinchong Xiao ₂ , Xingzhi Wu ₃ , Wenfa Zhou ₄ , Lei Shen ₄ , Jian Zhang ₂ , Yuxiao Wang ₁ , Xueru Zhang ₁ , Yinglin Song ₁

Affiliation

Four chalcogenophene-fused acenes containing O, S, Se, or Te, respectively, were presented, and the chalcogenophene effect on linear and nonlinear optics was systematically investigated. Their excited-state absorption performance and two-photon absorption (TPA) capacity could be modulated by the incorporating chalcogen atoms. The experimental results showed that the heavy chalcogen facilitated the intersystem crossing resulting in the presence of the triplet state absorption for PyPSe and PyPTe, and the TPA capacity gradually increased with the atomic size of the chalcogens. The theoretical calculation inferred that their nonlinear optical performance was closely related to the contributions of the chalcogenophene component to heterotwistacenes in the final excited state. In addition, PyPTe was able to work under various laser pulses from femtoseconds to nanoseconds.

中文翻译：

通过将硫属元素oph烯掺入捻并酮中来调节非线性光学行为

提出了四种分别含有O，S，Se或Te的硫属元素oph稠合的并苯，并系统地研究了硫属元素oph对线性和非线性光学的影响。它们的激发态吸收性能和两光子吸收（TPA）容量可以通过掺入硫属元素原子来调节。实验结果表明，重硫属元素促进了系统间的穿越，导致存在PyPSe和PyPTe的三重态吸收，TPA容量随着硫族元素的原子尺寸逐渐增加。理论计算表明，它们的非线性光学性能与在最终激发态中硫属元素芴组分对异二十四碳六烯的贡献密切相关。此外，PyPTe能够在从飞秒到纳秒的各种激光脉冲下工作。

更新日期：2020-11-25

点击分享查看原文

点击收藏

阅读更多本刊最新论文