Effects of high energy Au-ion irradiation on the microstructure of diamond films
學年 101
學期 2
出版（發表）日期 2013-03-01
作品名稱 Effects of high energy Au-ion irradiation on the microstructure of diamond films
作品名稱（其他語言）
著者 Chen, Shih-Show; Chen, Huang-Chin; Wang, Wei-Cheng; Lee, Chi-Young; Lin, I-Nan; Guo, Jinghua; Chang, Ching-Lin
單位 淡江大學物理學系
出版者 College Park: American Institute of Physics
著錄名稱、卷期、頁數 Journal of Applied Physics 113(11), 113704(10pages)
摘要 The effects of 2.245 GeV Au-ion irradiation and subsequent annealing processes on the evolution of microstructure of diamond films with microcrystalline (MCD) or ultra-nanocrystalline (UNCD) granular structure were investigated, using near edge x-ray absorption fine structure and electron energy loss spectroscopy in transmission electron microscopy. For MCD films, the Au-ion irradiation disintegrated some of the diamond grains, resulting in the formation of nano-sized carbon clusters embedded in a matrix of amorphous carbon (a-C). The annealing process recrystallized the diamond grains and converted the a-C into nano-sized graphite particulates and, at the same time, induced the formation of nano-sized i-carbon clusters, the bcc structured carbon with a0 = 0.432 nm. In contrast, for UNCD films, the Au-ion irradiation transformed the grain boundary phase into nano-sized graphite, but insignificantly altered the crystallinity of the grains of the UNCD films. The annealing process recrystallized the materials. In some of the regions, the residual a-C phases were transformed into nano-sized graphites, whereas in other regions i-carbon nanoclusters were formed. The difference in irradiation-induced microstructural transformation behavior between the MCD and the UNCD films is ascribed to the different granular structures of the two types of films.
關鍵字
語言 en_US
ISSN 0021-8979 1089-7550
期刊性質 國外
收錄於
產學合作
通訊作者
審稿制度
國別 USA
公開徵稿
出版型式 紙本 電子版
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