Faculty of Physics, University of Bucharest, 405 Atomistilor Street, P.O. Box MG-11, Bucharest-Magurele, 077125, Romania.
National Institute of Materials Physics, 105 bis Atomistilor Street, P.O. Box MG-7, Bucharest-Magurele, 077125, Romania.
Nanoscale Res Lett. 2016 Dec;11(1):87. doi: 10.1186/s11671-016-1256-5. Epub 2016 Feb 13.
This paper presents some investigations on the optical and morphological properties of the polymer (matrix):monomer (inclusion) composite materials obtained from blends of bisphenol A polycarbonate and amidic monomers. For the preparation of the composite films, we have selected monomers characterised by a maleamic acid structure and synthesised them starting from maleic anhydride and aniline derivatives with -COOH, -NO2, -N(C2H5)2 functional groups attached to the benzene ring. The composite films have been deposited by spin coating using a mixture of two solutions, one containing the matrix and the other the inclusion, both components of the composite system being dissolved in the same solvent. The optical transmission and photoluminescence properties of the composite films have been investigated in correlation with the morphology of the films. The scanning electron microscopy and atomic force microscopy have revealed a non-uniform morphology characterised by the development of two distinct phases. We have also investigated the generation of some optical non-linear (ONL) phenomena in these composite systems. The composite films containing as inclusions monomers characterised by the presence of one -COOH or two -NO2 substituent groups to the aromatic nucleus have shown the most intense second-harmonic generation (SHG). The second-order optical non-linear coefficients have been evaluated for these films, and the effect of the laser power on the ONL behaviour of these materials has also been emphasised.
本文对由双酚 A 聚碳酸酯和酰胺单体共混物得到的聚合物（基体）：单体（包含物）复合材料的光学和形态性质进行了一些研究。为了制备复合膜，我们选择了具有马来酸酐结构的单体，并从带有 -COOH、-NO2、-N(C2H5)2 官能团的苯环衍生物的苯胺开始合成它们。使用两种溶液的混合物通过旋转涂层来沉积复合膜，一种溶液含有基体，另一种溶液含有包含物，复合体系的两个组成部分都溶解在相同的溶剂中。研究了复合膜的光学传输和光致发光性质与膜的形态之间的关系。扫描电子显微镜和原子力显微镜揭示了一种不均匀的形态，其特征是发展出两种截然不同的相。我们还研究了这些复合体系中一些光学非线性（ONL）现象的产生。含有包含物单体的复合膜，这些单体的芳香核上有一个 -COOH 或两个 -NO2 取代基，表现出最强的二次谐波产生（SHG）。评估了这些薄膜的二阶光学非线性系数，并强调了激光功率对这些材料的 ONL 行为的影响。
