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Cryo-electron Microscopy Specimen Preparation By Means Of a Focused Ion Beam
Published on: July 26, 2014
The Effects of Hemisphere Dome Orientation on the Structure of Diamond-like Carbon Film Prepared Using Ion Beam
Peng Shang1,2, Yuanfei Ma1, Zhenyun Zhang1
1GRINM Guojing Advanced Materials Co., Ltd., General Research Institute for Nonferrous Metals, Beijing 100088, China.
Abstract:
Diamond-like carbon (DLC) has attracted significant attention in the recent decades because of its unique properties and applications. Ion beam assisted deposition (IBAD) has been widely established in industry due to the advantages of easy handling and scalability. In this work, a hemisphere dome model is specially designed as a substrate. The influence of the surface orientation on the coating thickness, Raman ID/IG ratio, surface roughness and the stress of the DLC films are examined. The reduction in the stress in the DLC films reflects the lower energy-dependence in diamond due to the varied sp3/sp2 fraction and columnar growth pattern. The variation of the surface orientation provides an efficient means of tailoring the properties and microstructure of the DLC films.
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