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中文摘要：
以正硅酸乙酯与钛酸丁酯为前驱体,用溶胶–凝胶法将水溶性的5,10,15,20-四（4-磺酸苯基）卟啉铜（tetra（4-sulfonatophenyl）porphine,TPPS）（Cu（Ⅱ）–TPPS）掺杂到TiO2/SiO2固体介质中,制备了Cu（Ⅱ）–TPPS掺杂TiO2/SiO2有机–无机复合材料。通过分析样品的紫外–可见吸收光谱,研究了Cu（Ⅱ）–TPPS在凝胶基质中的分子状态。结果表明：Cu（Ⅱ）–TPPS在TiO2/SiO2凝胶介质中的最大单体掺杂摩尔分数为10–10。随着Cu（Ⅱ）–TPPS掺杂浓度的进一步提高,在凝胶体系中开始形成Cu（Ⅱ）–TPPS二聚体,且二聚体含量随着凝胶化过程的进行而增多。应用Z扫描技术研究了不同Cu（Ⅱ）–TPPS掺杂浓度的复合材料的非线性光学性质,其三阶非线性折射率达–2.991×10^–17 m^2/W。
英文摘要：
The sol–gel inorganic composite was prepared by incorporating Cu（Ⅱ）meso-tetra（4-sulfonatophenyl） porphine（Cu（Ⅱ）– TPPS） into solid TiO2/SiO2using a sol–gel process with ethyl silicate and buthyl titanate as precursors.The states of metalloporphyrin molecules were investiaged by ultraviolet-visible spectra.The doping concentration of Cu（Ⅱ）–TPPS（mole fraction） in monomer can reach 10–10.The dimmers are formed in the composites as the Cu（Ⅱ）–TPPS content increases further,and the dimerization becomes seriously during the xerogel stage.The nonlinear optical properties of samples were investigated by Z-scan technique using Ti：Sapphire femto-second laser pluses as a light source.The nonlinear refactive index,n2 is –2.991 × 10^–17 m^2/W.
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