Infrared and ultra violet-visible spectroscopic investigation of plasma polymerized N,N,3,5-tetramethylaniline thin films

被引：15

作者：

Akther, H ^{[1
]}

Bhuiyan, AH ^{[1
]}

机构：

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

来源：

THIN SOLID FILMS | 2005年 / 474卷 / 1-2期

关键词：

UV vis spectrometry; plasma polymerized N,N,3,5-tetramethylaniline thin films; IR spectrometry;

D O I：

10.1016/j.tsf.2004.07.050

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Plasma polymerized N,N,3,5-tetramethylaniline (PPTMA) thin films were deposited on to glass substrates at room temperature by a capacitively coupled parallel plate reactor. The as-grown and heat-treated thin films of about 400 nm thick were characterized by infrared (IR) and ultraviolet-visible (UV-Vis) spectrometry. The structural analyses reveal that PPTMA thin films are formed with certain amount of conjugation, which modifies on heat treatment. From the UV-Vis absorption spectra, allowed direct transition (E-qd) and indirect transition (E-qi) energy gaps are determined to be 2.80 and 1.56 eV, respectively. While E-qd increases a little, E-qi decreases, on heat treatment of PPTMA. The calculated values of B for all the samples indicate an increase in structural order/conjugation in PPTMA thin films on heat treatment. (C) 2004 Published by Elsevier B.V.

引用

页码：14 / 18

页数：5

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