کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10653200 1002847 2005 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improved emission stability of HfC-coated carbon nanotubes field emitters
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Improved emission stability of HfC-coated carbon nanotubes field emitters
چکیده انگلیسی
Plasma-enhanced chemical vapor deposition (PECVD) method was employed to synthesize the Fe-catalyzed carbon nanotubes (CNTs). Hf films were deposited onto the synthesized CNTs, followed by heat treatment at 1200 °C which could form HfC. Field emission properties indicate that the HfC-coated CNTs have good emission current density due to low work function of HfC and also keep stable emission characteristics under poor vacuum owing to the chemical inertness of HfC. Consequently, field emission characteristics of the CNTs can be improved by the HfC-coated surface treatment compared with the synthesized CNTs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volume 135, Issue 6, August 2005, Pages 390-393
نویسندگان
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