Direct optical transition in plasma polymerized vinylene carbonate thin films

被引：3

作者：

Majumder, S. ^{[1
]}

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

机构：

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

来源：

INDIAN JOURNAL OF PHYSICS | 2011年 / 85卷 / 08期

关键词：

UV-Vis spectroscopy; plasma polymerized vinylene carbonate thin films; FTIR spectroscopy; SEM; DEPOSITION;

D O I：

10.1007/s12648-011-0154-z

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Plasma polymerized vinylene carbonate (PPVC) thin films were deposited on to glass substrates by low pressure glow discharge plasma from vinylene carbonate monomer at room temperature. Surface morphology and chemical structure of PPVC were analyzed by Scanning electron microscopy and Fourier transformation infrared spectroscopy, respectively. The surfaces of the PPVC thin films were observed to be smooth and pinhole free. The structural analysis by FTIR spectroscopy indicates structural rearrangement due to the removal of bonds. Ultraviolet-visible spectroscopic studies have been carried out on the PPVC thin films of different thicknesses. It is seen that the absorbance increases with the increase of film thickness. The direct band gap energies were calculated from the absorption data and are found to be in the range of 3.96 to 4.15 eV.

引用

页码：1287 / 1297

页数：11

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