聚苯胺-碳纳米管掺杂聚乙烯醇的Z扫描研究

为了提高聚苯胺的非线性光学性能以及实际应用价值，使用原位聚合法制备了聚苯胺-碳纳米管复合体掺杂聚乙烯醇薄膜，并利用单光束Z扫描技术，在波长532nm、脉宽8ns的条件下研究了这种材料的三阶非线性光学性质，计算其三阶非线性光学系数。结果表明，与聚苯胺本体相比，聚苯胺-碳纳米管复合体掺杂聚乙烯醇薄膜的非线性光学性能得到明显的提高，将其制备成薄膜为今后的实际应用打下基础。

Study of Z-scan of polyaniline-carbon natotube doped polyvinyl alcohol composite

In order to improve the third-order nonlinear optical property and the practical application of pani, polyaniline-carbon natotube-doped polyvinyl alcohol composites were prepared by electrostatic interaction between carbon natotubes and aniline via in situ polymerization.The third-order nonlinear properties of the samples were determined by the well-known Z-scan technique at 532nm with 8-ns duration, and the third-order optical nonlinear refractive indexes were calculated. Compared with pani, the third-order nonlinear properties of polyaniline-carbon natotube-doped polyvinyl alcohol composites could be improved obviously. They were prepared as film so that they could be used more widely.