Structural and optical properties of plasma polymerized o-methoxyaniline thin films

被引：16

作者：

Rahman, Mohammad Jellur ^{[1
]}

Bhuiyan, A. H. ^{[1
]}

机构：

[1] Bangladesh Univ Engn & Technol, Dept Phys, Dhaka 1000, Bangladesh

来源：

THIN SOLID FILMS | 2013年 / 534卷

关键词：

Plasma polymerization; Ortho-methoxyaniline; Fourier-transform infrared spectroscopy; UV-visible spectroscopy; ELECTRONIC-PROPERTIES; PECVD METHOD; POLYANILINE; SURFACE;

D O I：

10.1016/j.tsf.2013.02.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Plasma polymerized o-methoxyaniline (PPOMA) thin films of different thicknesses were prepared in glow discharge plasma using a parallel plate capacitively coupled polymerization reactor. The PPOMA thin films are smooth, flawless and pinhole free. Fourier transform infrared spectra reveal a decrease of absorption intensity and disappearance of some absorption peaks for PPOMA as compared to those of OMA, indicating the formation of the thin film with modified/changed chemical structure. Analyses of the ultraviolet-visible spectroscopic results reveal that the allowed indirect (Egi) and direct (Egd) band gap energies have values in the range 1.68 to 2.08 eV and 2.90 to 3.08 eV, respectively for PPOMA thin films of thicknesses from 100 to 300 nm. The Egi of the experimental PPOMA thin films does not show any definite trend with film thickness, whereas the Egd shows weak dependence on film thickness. (C) 2013 Elsevier B. V. All rights reserved.

引用

页码：132 / 136

页数：5

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