| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5467458 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2017 | 5 Pages |
Abstract
The optical, structural and chemical properties of polyimide Kapton-H polymer thin film samples were modified by irradiation with 100Â MeVÂ O7+ ions (in the fluence range of 1Â ÃÂ 1011 to 5Â ÃÂ 1012Â ions/cm2) and the modifications of these properties were observed by UV-visible (UV-Vis) spectroscopy, X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy respectively. The band gap energy of the polymer decreased considerably with discrete increment of the ion fluence (different fluence for each sample) and effective change for the sample irradiated at a fluence of 5Â ÃÂ 1012Â ions/cm2 was observed from that of pristine sample. The amorphous nature of the polymer was observed to be decreased with increase of ion fluence. The vibrations of CC appeared at mid fluences but the stretching vibrations of OH bond disappeared at these fluences due to the high LET of the oxygen ions.
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
Sanjeev Kumar Gupta, Rashi Gupta, Paramjit Singh, Vikas Kumar, Manoj Kumar Jaiswal, S.K. Chakarvarti, Rajesh Kumar,