کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
701022 1460815 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Surface properties of differently prepared ultrananocrystalline diamond surfaces
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
Surface properties of differently prepared ultrananocrystalline diamond surfaces
چکیده انگلیسی

Ultrananocrystalline diamond/amorphous carbon composite films have been deposited by microwave plasma chemical vapour deposition from 17% CH4/N2 mixtures at 600 °C. Thereafter the films were subjected to various treatments (plasma processes, UV/O3 exposure) to obtain hydrogen, oxygen, and fluorine terminated surfaces, which then have been characterized with respect to their composition, roughness, wettability, and other properties. Among others, it will be shown that H- and F-terminated surfaces are very stable even if exposed for long time to air, while O-terminated ones are prone to contaminations. H- and O-termination can be patterned by applying the UV/O3 treatment through a mask. Finally, it will be shown that a non-fouling poly(ethylene glycol) layer can be grafted directly on oxygen terminated surfaces by an atom transfer radical polymerization process using α-bromoisobutyryl bromide as an initiator.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Diamond and Related Materials - Volume 18, Issues 5–8, May–August 2009, Pages 745–749
نویسندگان
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