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1. 郑州大学物理工程学院, 材料物理教育部重点实验室
2. 中国科学院, 安徽光学精密机械研究所
收稿:2007-08-25,
修回:2007-11-24,
纸质出版:2008-03-20
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高金海, 姚宁, 张兵临, 王英俭. 类球状微米金刚石聚晶的场发射[J]. 发光学报, 2008,29(2): 393-397
GAO Jin-hai, YAO Ning, ZHANG Bing-lin, WANG Ying-jian. Growth and Field Emission Properties of Globe-like Diamond Microcrystalline-aggregate[J]. Chinese Journal of Luminescence, 2008,29(2): 393-397
在覆盖金属钛层的陶瓷上
采用微波等离子体化学气相沉积(MPCVD)法制备出类球状微米金刚石聚晶薄膜。利用扫描电子显微镜、拉曼光谱
X射线衍射
分析了薄膜的结构和表面形貌。测试了类球状微米金刚石聚晶膜的场致电子发射特性。开启电场仅为0.55V/μm
在2.18V/μm的电场下
其场发射电流密度高达11mA/cm
2
。仔细分析了膜的发射过程
发现类球状微米金刚石聚晶的结构对发射有很大影响
并对其发射机理进行了研究。
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