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设计合成了一种含偶氮苯基团的功能化有机硅氧烷， 并与正硅酸乙酯进行水解缩合， 形成的溶胶进行旋转涂膜和干燥处理得到凝胶膜， 经电晕场极化交联后获得有机／ 无机复合二阶非线性光学材料． ＳＨＧ 测量表明， 这种有机／ 无机复合材料的二阶非线性光学系数（ｄ３３） 较高， 达到５７９ ×１０－ ７ ｅｓｕ ； 非线性光学的热稳定性较好， 室温下１ ４４０ ｈ 后ｄ３３ 维持初值的９６％ ， １００ ℃下５ ｈ 后ｄ３３ 维持为初值的６０ ％ ．
A kind of functional organosiloxane containing azobenzene groups was synthesized and hydrolyzed and condensed with tetraethyl orthosilicate to form a gel film by spin coating and drying treatment. After the cross-linking organic / inorganic composite second-order nonlinear optical materials. SHG measurements show that the second-order nonlinear optical coefficient (d33) of this organic / inorganic composite is higher, reaching 5 79 × 10-7 esu. The thermal stability of nonlinear optical is better. After 1440 h at room temperature d33 maintains 96% of the initial value, and maintains the initial value of 60% after 5 hours at 100 ° C.