کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9817497 | 1518766 | 2005 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study of 160Â MeV Ni12+ ion irradiation effects on electrodeposited polypyrrole films
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سطوح، پوششها و فیلمها
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چکیده انگلیسی
Conducting polymer polypyrrole thin films doped with LiCF3SO3, [CH3(CH2)3]4NBF4 and [CH3(CH2)3]4NPF6 have been electrodeposited potentiodynamically on ITO coated glass substrate. The polymer films are irradiated with 160Â MeV Ni12+ ions at three different fluences of 5Â ÃÂ 1010, 5Â ÃÂ 1011 and 3Â ÃÂ 1012 ions cmâ2. An increase in dc conductivity of polypyrrole films from â¼100Â S/cm to â¼170Â S/cm after irradiation with highest fluence is observed in four-probe measurement. X-ray diffractogram shows increase in the crystallinity of the polypyrrole films upon SHI irradiation, which goes on increasing with the increase in fluence. Absorption intensity increase in the higher wavelength region is observed in the UV-Vis spectra. The SEM studies show that the cauliflower like flaky microstructure of the surface of polypyrrole films turns globular upon SHI irradiation at fluence 5Â ÃÂ 1011 ions cmâ2 and becomes smooth and dense at the highest fluence used. The cyclic voltammetry studies exhibit that the redox properties of the polypyrrole films do not change much on SHI irradiation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 240, Issue 4, December 2005, Pages 871-880
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 240, Issue 4, December 2005, Pages 871-880
نویسندگان
A.M.P. Hussain, A. Kumar, D. Saikia, F. Singh, D.K. Avasthi,