150 MeV Nickel ion beam irradiation effects on polytetrafluoroethylene (PTFE) polymer

被引：25

作者：

Dhillo, Ramandeep Kaur ^{[2
]}

Singh, Surinder ^{[2
]}

Kumar, Rajesh ^{[1
]}

机构：

[1] Guru Gobind Singh Indraprastha Univ, Dept Phys, Univ Sch Basic & Appl Sci, Delhi 110403, India

[2] Guru Nanak Dev Univ, Dept Phys, Amritsar 143005, Punjab, India

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2010年 / 268卷 / 11-12期

关键词：

PTFE; Nickel ion; FTIR; UV-vis; XRD techniques; CROSS-LINKING; SURFACE MODIFICATION; CHEMICAL-STRUCTURE; ELECTRON; DEGRADATION; ENVIRONMENT; OXYGEN; FILMS;

D O I：

10.1016/j.nimb.2010.02.085

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Polytetrafluoroethylene (PTFE) films were irradiated under vacuum and at room temperature with 150 MeV Ni11+ ions and fluences ranging from 5 x 10(10) to 5 x 10(12) ions/cm(2). Ion induced modifications in optical, chemical and structural properties were studied by means of Fourier transform infrared (FUR) spectroscopy, UV-vis spectroscopy and X-ray diffractometer (XRD). FTIR analysis indicated the defluorination of the PTFE due to the rupture of C-C and C-F bonds. UV-vis measurements indicated the decrease in the band gap E-g of pristine sample from 2.16 to 1.73 eV at a highest fluence of 5 x 10(12) ions/cm(2). The diffraction pattern of PTFE revealed an increase in the crystallinity at lower fluences while it decreased as the ion fluence was increased. (C) 2010 Published by Elsevier B.V.

引用

页码：2189 / 2192

页数：4

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