کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
701308 1460819 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
AC behavior of intrinsic nanocrystalline diamond films
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
AC behavior of intrinsic nanocrystalline diamond films
چکیده انگلیسی

Nanocrystalline diamond was prepared by hot filament assisted chemical vapor deposition technique. The nanometer sized dimension of diamond grains was determined by X-ray line broadening. AC electrical response of deposits, constituted by well formed diamond grains, was studied by admittance spectroscopy at different temperatures. Grain boundary and grain surface were considered different regions able to influence differently the frequency dependent AC response. Observed variations in admittance spectra were attributed to a modification of the grain surface response as frequency and temperature rise. A semiconductor to metal-like transition was evidenced in admittance spectra increasing the frequency of applied signal at lower temperatures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Diamond and Related Materials - Volume 16, Issues 4–7, April–July 2007, Pages 935–939
نویسندگان
, , , , , , ,