可印制碳纳米管冷阴极中碳纳米管含量的优化

摘要

Carbon nanotube (CNT) cathodes with different CNT contents were prepared by screen-printing method. The relationships among microstructure, emission properties and electrical characteristics of screen-printed CNT cathode were studied. It is found electrical characteristics of cathodes are affected by CNT content, and only cathode with appropriate CNT content has the optimal field emission properties.%采用丝网印刷法制备了不同碳纳米管含量的冷阴极.研究了不同碳纳米管含量的冷阴极的场发射特性与其微结构和电学特性的关系.实验发现,碳纳米管冷阴极的导电性和场发射特性受碳纳米管含量影响,具有适当的碳纳米管含量的冷阴极的场发射特性最佳.