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
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
Electrical conductivity of polyazomethine/fullerene C60 nanocomposites
چکیده انگلیسی
We prepared the polyazomethine/fullerene C60 nanocomposites varying in C60 loading. With a broadband dielectric relaxation spectrometer, we measured their electrical conductivity σm being a sum of dc conductivity σdc and ac conductivity σac. A small C60 content (0.25 and 0.5 wt.%) was shown to decrease σdc, whereas a larger amount of C60 (2.5 wt.%) was found to increase σdc of the nanocomposite. The temperature dependences of σac were described with the Arrhenius equation, while the frequency dependences of σac were characterized with a power function. The correlated barrier hopping was accepted as the most suitable mechanism to explain the σac behavior of the nanocomposites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 381, Issue 8, 26 February 2017, Pages 796-800
نویسندگان
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