高热稳定性二阶非线性光学自组装薄膜的制备研究  

Fabrication of the Second-Order NLO Self-Assembled Films with High Thermal Stability

作　　者：韩莉坤[1] 蒋亚东[2] 郝鹏[2] 李伟[2] 

机构地区：[1]电子科技大学空天科学技术研究院,成都610054 [2]电子科技大学电子薄膜与集成器件国家重点实验室,成都610054

出　　处：《电子科技大学学报》2010年第1期145-148,共4页Journal of University of Electronic Science and Technology of China

基　　金：国家杰出青年基金(60425101)

摘　　要：采用偶氮型聚阴离子PAZO与感光型聚阳离子重氮树脂DR进行层层静电自组装,制备非线性光学薄膜,并采用紫外可见光谱跟踪成膜过程。经过紫外光照,层间的静电相互作用转化为共价键连接而形成稳定的多层膜。对制备的DR/PAZO多层组装膜进行的二阶非线性光学性质、热稳定性及抗溶剂刻蚀能力的研究表明,膜层具有较明显的SHG信号,同时曝光后的膜层比未经曝光的膜层表现出了更好的热稳定性和抗溶剂稳定性。The non-linear optical films were fabricated by means of alternate electrostatic adsorption with positively charged diazoresin （DR） or with negatively charged azo polymer （PAZO）. Regular films growth during adsorption was proved by means of UV-vis spectroscopy. Upon the UV irradiation, accompanied with the transition of the ionic bonds between the layers to covalent bonds, the resulting multilayer films possess excellent environmental stability and high thermal stability. Optical second-harmonic generation （SHG） was observed in the multilayer films.

关 键 词：重氮树脂 静电自组装 非线性光学 热稳定性 

分 类 号：O631[理学—高分子化学]