碳纳米管(CNTs)具有低的阈值电场和高的发射电流密度,是一种性能优良的场发射阴极材料,在平板显示领域具有潜在的应用价值.CNTs的场发射性能直接关系到CNTs场发射阴极在未来的实际应用.本文从Fowler-Nordheims场发射理论出发,阐述了CNTs的场发射机制;详细论述了各种因素包括CNTs的定向性、层结构、几何特征、阵列密度、系统真空度以及CNTs与基底材料之间的键合等对CNTs场发射特性的影响;介绍了CNTs场发射特性在平板显示领域中的实际应用.
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