Synthesis and Two-Photon Absorption Properties of Star-Shaped Chromophores Derived from Functionalized Fluorene Units
作者:Tzu-Chau Lin、Che-Yu Liu、Bor-Rong Huang、Ja-Hon Lin、Yu-Kai Shen、Cheng-Yu Wu
DOI:10.1002/ejoc.201201236
日期:2013.1
A set of small star-shaped chromophores composed of three fluorene-based congeners have been synthesized and shown experimentally to possess strong and widely dispersed two-photon absorptivities in the visible to near-IR region under the irradiation of femtosecond and nanosecond laser pulses. In addition, the number of electron-donating fluorenyl units incorporated in the final structure was closely
一组由三种芴基同系物组成的小星形发色团已被合成并通过实验证明在飞秒和纳秒激光脉冲的照射下在可见光至近红外区域具有强且广泛分散的双光子吸收率。此外,最终结构中的供电子芴基单元的数量与这些模型化合物的分子双光子活性密切相关。还研究了这些染料分子在纳秒时域中的有效光功率衰减和稳定行为。结果表明,这种结构基序可用于强双光子吸收材料系统的分子设计,用于快速响应和宽带光抑制相关应用,