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整齐排列的氧化锌纳米针阵列的场发射性能
  • ISSN号：1000-3290
  • 期刊名称：物理学报
  • 时间：0
  • 页码：7057-7062
  • 语言：中文
  • 分类：TN215[电子电信—物理电子学] TB383[一般工业技术—材料科学与工程]
  • 作者机构：[1]北京大学纳米器件物理与化学教育部重点实验室,北京大学电子系,北京100871
  • 相关基金：国家自然科学基金（批准号：90606023,60771004）和国家高技术研究发展计划（批准号：2006AA05Z107）资助的课题. 在完成本文场发射性能分析部分的过程中得到了王鸣生博士的建议和大力帮助,在此表示衷心感谢.
  • 相关项目：新型碳锥-纳米管针尖的制备与场发射特性研究
作者： 肖竞|张耿民|柏鑫|
关键词： 氧化锌, 热蒸发, 阵列场发射, 屏蔽效应, zinc oxide,thermal evaporation,field emission from arrays,screening effect
中文摘要：

采用简单的热蒸发方法,不使用任何催化剂,在硅基底上制备出了两种垂直于基底、整齐排列的氧化锌纳米针阵列.它们具有均匀的分布以及一致的取向和高度.场发射性能研究表明它们同时具有较低的开启和阈值场强,稳定的发射电流和长时间维持发射的能力.较低的开启和阈值场强来源于它们较高的长径比和较细的尖端;稳定发射电流和长时间维持发射的能力来源于它们在基底上均匀一致的分布以及由于较粗的根部带来的与基底的良好接触.实验结果表明整齐的氧化锌针状纳米结构阵列是一种理想的平面场发射材料.

英文摘要：

Two kinds of vertically aligned,well-ordered zinc oxide nanoneedle arrays were synthesized on silicon substrates without any catalyst by a simple thermal evaporation method.The nanoneedle arrays have uniform distribution and unique orientation and height.The field emission study shows that both of them have not only low turn-on field and threshold field,but also the ability of stable and long time emission.The low turn-on field and threshold field result from the high aspect ratio and thin apex of the nanoneedles.The stable and long time emission are due to the uniform distribution and good contact between the nanoneedles and the substrate.The results show that regular nanoneedle arrays are ideal candidates for flat panel field emission applications.

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新型碳锥-纳米管针尖的制备与场发射特性研究
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期刊信息
  • 《物理学报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国物理学会 中国科学院物理研究所
  • 主编：欧阳钟灿
  • 地址：北京603信箱(中国科学院物理研究所)
  • 邮编：100190
  • 邮箱：apsoffice@iphy.ac.cn
  • 电话：010-82649026
  • 国际标准刊号：ISSN：1000-3290
  • 国内统一刊号：ISSN：11-1958/O4
  • 邮发代号:2-425
  • 获奖情况:
  • 1999年首届国家期刊奖,2000年中科院优秀期刊特等奖,2001年科技期刊最高方阵队双高期刊居中国期刊第12位
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  • 被引量:49876