Nonlinear Optical Properties of Porphyrin Derivatives with Electron-donating or Electron-withdrawing Substituents

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• 作者：Pengxia Liang ; Yongsheng Mi ; Jinshuai Duan ; Zhou Yang ; Dong Wang ; Hui Cao ; Wanli He and Huai Yang
• 关键词：nonlinear optical ; porphyrin derivatives ; self-assembly ; photophysical properties
• 刊名：Chinese Journal of Chemistry
• 出版年：2016
• 出版时间：April, 2016
• 年：2016
• 卷：34
• 期：4
• 页码：381-386
• 全文大小：1716K
• ISSN：1614-7065

文摘

To investigate photoelectric properties of meso-extended porphyrin derivatives with electron-donating or electron-withdrawing substituents, a series of functionalized porphyrin materials have been designed and synthesized by Suzuki coupling reaction. The meso-extended structures were fully characterized by ¹H NMR, IR spectroscopy and mass spectrometry. The photophysical properties of porphyrin derivatives were carefully examined by UV-Visible and fluorescence spectra, and the solvatochromic effect was observed and discussed. In particular, Z-scan technique was employed to characterize the third-order nonlinear optical (NLO) properties of the products such as nonlinear absorption and refraction, the third-order nonlinear refractive indexes (𝔵⁽³⁾-value) of these porphyrin derivatives achieved 3.9×10^−12 esu. In addition, the compounds could be self-assembled into highly organized morphologies through phase-exchange method. All the results indicated that the discotic materials have the potential for optoelectronic applications.