Nonlinear Optical Properties of Porphyrin Derivatives with Electron‐donating or Electron‐withdrawing Substituents |
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Authors: | Pengxia Liang Yongsheng Mi Jinshuai Duan Zhou Yang Dong Wang Hui Cao Wanli He Huai Yang |
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Institution: | 1. Department of Material Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, China;2. Department of Materials Science and Engineering, Peking University, Beijing 100083, China |
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Abstract: | 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 (??(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. |
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Keywords: | nonlinear optical porphyrin derivatives self‐assembly photophysical properties |
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