| 非线性光学聚合物薄膜DCDHF-2-V/PMMA的特性 |
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| 引用本文： | 蔡渊,蒋亚东,韩莉坤,李伟,廖进昆.非线性光学聚合物薄膜DCDHF-2-V/PMMA的特性[J].高分子材料科学与工程,2008,24(1):101-104. |
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| 作者姓名： | 蔡渊 蒋亚东 韩莉坤 李伟 廖进昆 |
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| 作者单位： | 电子科技大学电子薄膜与集成器件国家重点实验室,四川,成都,610054 |
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| 摘 要： | 将新型有机非线性光学分子DCDHF-2-V按一定比例掺入聚甲基丙烯酸甲酯(PMMA)中,采用旋涂方法制备聚合物薄膜。为了得到宏观二阶非线性光学特性,在90℃对薄膜进行电晕极化,形成各向异性。对极化前后的薄膜进行紫外/可见光吸收频谱分析和原子力显微镜分析。采用RHF方法在6-31G基组上对DCDHF-2-V/PMMA薄膜体系中的DCDHF-2-V分子和PMMA进行闭壳层Hartree-Fock理论计算,得到它们的一阶超极化率β分别为60.278755×10-30esu和10.902267×10-34esu。
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| 关 键 词： | 有机非线性光学 电晕极化 Hartree-Fock 一阶超极化率 |
| 文章编号： | 1000-7555（2008）01-0101-04 |
| 收稿时间： | 2006-08-29 |
| 修稿时间： | 2006-12-25 |
Study on Properties of DCDHF-2-V Nonlinear Optical Polymeric Thin Film |
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| CAI Yuan,JIANG Ya-dong,HAN Li-kun,LI Wei,LIAO Jin-kun.Study on Properties of DCDHF-2-V Nonlinear Optical Polymeric Thin Film[J].Polymer Materials Science & Engineering,2008,24(1):101-104. |
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| Authors: | CAI Yuan JIANG Ya-dong HAN Li-kun LI Wei LIAO Jin-kun |
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| Affiliation: | (State key Laboratory of Electronic Thin Films and Integrated Devices,UESTC Chengdu 610054,China) |
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| Abstract: | Organic nonlinear optical(NLO) chromophore molecules DCDHF-2-V were doped in poly (methyl methacrylate)(PMMA) with a certain concentration by mass.The polymer thin film was fabricated by spin-casting method.For a macroscopic second-order NLO effect,the film was corona poled to induce a noncentrosymmetric organization of chromophore dipoles.The UV/Visible absorption spectra and the Atomic Force Microscopy(AFM) of the unpoled and poled polymer film were investigated.The first hyperpolarizabilities(β) of DCDHF-2-V and PMMA in the DCDHF-2-V/PMMA polymer system is 60.278755×10-30 esu and 10.902267×10-34 esu respectively.The values were calculated by using the closed-shell restricted Hartree-Fock(HF) method at the base of 6-31G. |
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| Keywords: | organic NLO corona poling Hartree-Fock the first hyperpolarizability |
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