کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5496651 | 1399861 | 2017 | 29 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrical conductivity of polyazomethine/fullerene C60 nanocomposites
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
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چکیده انگلیسی
We prepared the polyazomethine/fullerene C60 nanocomposites varying in C60 loading. With a broadband dielectric relaxation spectrometer, we measured their electrical conductivity Ïm being a sum of dc conductivity Ïdc and ac conductivity Ïac. A small C60 content (0.25 and 0.5 wt.%) was shown to decrease Ïdc, whereas a larger amount of C60 (2.5 wt.%) was found to increase Ïdc of the nanocomposite. The temperature dependences of Ïac were described with the Arrhenius equation, while the frequency dependences of Ïac were characterized with a power function. The correlated barrier hopping was accepted as the most suitable mechanism to explain the Ïac behavior of the nanocomposites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 381, Issue 8, 26 February 2017, Pages 796-800
Journal: Physics Letters A - Volume 381, Issue 8, 26 February 2017, Pages 796-800
نویسندگان
Sergei Bronnikov, Aleksandr Podshivalov, Sergei Kostromin, Mihai Asandulesa, Vasile Cozan,