کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5467458 | 1398937 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modifications in physico-chemical properties of 100Â MeV oxygen ions irradiated polyimide Kapton-H polymer
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 406, Part A, 1 September 2017, Pages 188-192
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 406, Part A, 1 September 2017, Pages 188-192
نویسندگان
Sanjeev Kumar Gupta, Rashi Gupta, Paramjit Singh, Vikas Kumar, Manoj Kumar Jaiswal, S.K. Chakarvarti, Rajesh Kumar,