عنوان
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Microstructure and optical properties of cobalt–carbon nanocomposites prepared by RF-sputtering
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نوع پژوهش
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مقاله چاپشده در مجلات علمی
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کلیدواژهها
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Cobalt/carbon, nanocomposite, RF-sputtering, AFM, nanoparticles
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چکیده
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Cobalt/carbon nanocomposite coating (CoNPs@a-C:H), which consist of cobalt nanoparticles buried in hydrogenated amorphous carbon are prepared by RF-sputtering and RF-plasma enhanced chemical vapor deposition on silicon substrates. In these processes, the coatings are produced from a cobalt sputtered target and acetylene reactant gas. The crystalline structure and surface topography of the deposited films are characterized by X-ray diffraction (XRD) and atomic force microscopy (AFM) , respectively. The AFM shows that the average size distribution depends on the deposition conditions and RMS varies from 3.5 up to 6 nm. The XRD an alyses indicate the presence of cobalt nanostructure as centered face cubic phase and its oxide, but with no evidence of carbide structure. The energy-dispersive X-rayspectroscopy analysis was used to identify the elements composition in the films and the ultraviolet–visible spectrophotometry is used to study surface plasmon resonance bands ofCo nanoparticles.
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پژوهشگران
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مهرداد ملامحمدی (نفر اول)، علی آرمان (نفر دوم)، امین آچور (نفر سوم)، بندر آستین چپ (نفر چهارم)، آذین احمد پوریان (نفر پنجم)، سیروان نادری (نفر ششم به بعد)، آرش بوچانی (نفر ششم به بعد)، آرمان احمدپوریان (نفر ششم به بعد)
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