Spectroscopic and microscopic study of aggregate formation in the nano-dimensional Langmuir-Blodgett films of perylene with a fatty acid/polymer

被引：2

作者：

Ghosh, Indra ^{[1
]}

Pal, Ajitesh ^{[2
]}

Mishra, Bijay Kumar ^{[2
]}

Nath, Ranendu Kumar ^{[1
]}

机构：

[1] Tripura Univ, Dept Chem, Suryamaninagar 799022, Tripura, India

[2] Sambalpur Univ, Sch Chem, Ctr Studies Surface Sci & Technol, Jyoti Vihar 768019, Odisha, India

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2016年 / 625卷 / 01期

关键词：

Langmuir-Blodgett (LB) film; Perylene (PYL); AFM; Hysteresis; monolayer; 2 DIFFERENT MATRICES; DIMER; DYES;

D O I：

10.1080/15421406.2015.1069442

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Perylene (PYL) mixed with Behenic acid (BA) and Polymethyl methacrylate (PMMA) separately have been incorporated in the Langmuir-Blodgett film. The surface pressure versus area per molecule area isotherms are measured at various molar ratios. Stability of the mixed monolayer of PYL and BA/PMMA and their collapse pressure are much higher than that of pure PYL. Negligible amount of hysteresis observed in the compression-decompression isotherms indicate the formation of stable monolayer. Miscibility of the mixed systems is found to vary with the film composition. The formation of PYL aggregates in the mixed films is investigated using UV-Vis absorption spectroscopy, emission spectroscopy and atomic force microscopy (AFM).

引用

页码：276 / 287

页数：12

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