| 影响碳纳米管阴极场发射性能首要因素的研究 |
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| 引用本文： | 潘金艳,曾桂英,高云龙,李昕.影响碳纳米管阴极场发射性能首要因素的研究[J].电子器件,2010,33(3):253-257. |
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| 作者姓名： | 潘金艳 曾桂英 高云龙 李昕 |
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| 作者单位： | 1. 集美大学信息工程学院,福建,厦门,361021
2. 西安交通大学电信学院,西安,710049 |
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| 基金项目： | 国家自然科学基金资助，集美大学博士启动基金项目资助，河南省基础与前沿技术研究计划资助 |
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| 摘 要： | 研究了影响碳纳米管(CNT)场发射性能的主要因素,通过实验分析气压、热处理温度、发射体尺寸参数等,发现预先热处理可有效提高发射体分散均匀性,而高温后处理可有效纯化CNT;气压和温度是工作过程中影响CNT阴极膜场发射稳定性的重要参数;而CNT发射体的长度、管径与膜层密度是影响场发射电流特性的主要因素,长径比大小影响着场增强因子大小,大长径比引起低的开启电场强度和高发射电流,但管径的大小与场发射均匀性的优劣呈相反关系.
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| 关 键 词： | 碳纳米管(CNT) 场发射 均匀性 稳定性 |
On the principal factors effecting the properties of carbon nanotube cathodes |
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| PAN Jinyan,ZENG Guiying,GAO Yunlong,LI Xin.On the principal factors effecting the properties of carbon nanotube cathodes[J].Journal of Electron Devices,2010,33(3):253-257. |
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| Authors: | PAN Jinyan ZENG Guiying GAO Yunlong LI Xin |
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| Affiliation: | PAN Jinyan1,ZENG Guiying1,GAO Yunlong2,LI Xin21.College of Information Engineering,Jimei University,Xiamen Fujian 361021,China,2.School of Electronics & Information Engineering,Xi'an Jiaotong University,Xi'an 710049 |
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| Abstract: | Principal factors influencing field emission of CNTs are investigated.Via the analysis of the gas pressure and the temperature of heat treatment as well as the profile parameters of emitters,it is observed that uniform dispersion of CNTs could be achieved by high temperature pre-treatment,while post-treatment for CNT films could purify the films.Gas pressure and temperature in operation process seriously affect the stability of field emission.Furthermore,length,diameter and density of CNTs are primary facto... |
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| Keywords: | Carbon nanotube(CNT) Field emission display uniformity Stability |
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