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首页> 外文期刊>Applied Surface Science >Preparation and field emission properties of carbon nanotubes cold cathode using melting Ag nano-particles as binder
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Preparation and field emission properties of carbon nanotubes cold cathode using melting Ag nano-particles as binder

机译：以熔融银纳米粒子为粘合剂的碳纳米管冷阴极的制备及场致发射特性

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摘要

A new preparation process for carbon nanotubes (CNTs) cold cathode was studied through the replacement of traditional organic or inorganic binder with Ag nano-particles. This method has the advantages of low preparation temperature and fine electrical contact between CNTs paste and substrate. A mixture paste of CNTs, Ag nano-particles and other organic solvents was spreaded on Si substrate. By melting and connecting of Ag nano-particles after sintered 30 min at 250℃, a flat CNTs films with good field emission properties was obtained. The measurements reveal that the turn on electric field and the threshold electric field of as-prepared CNTs cathode are 2.1 and 3.9 V/μm respectively and the field emission current density is up to 41 mA/cm~2 at an applied electric field of 4.7 V/μm.
机译：通过用银纳米颗粒代替传统的有机或无机粘合剂，研究了一种碳纳米管（CNTs）冷阴极的新制备方法。该方法的优点是制备温度低，CNTs糊剂与基材之间的电接触良好。碳纳米管，银纳米颗粒和其他有机溶剂的混合糊剂铺展在硅基板上。通过在250℃烧结30min后熔融和连接Ag纳米颗粒，得到了具有良好场发射性能的扁平CNTs薄膜。测量结果表明，所制备的CNTs阴极的开启电场和阈值电场分别为2.1和3.9 V /μm，在施加电场为4.7时场发射电流密度高达41 mA / cm〜2 V /微米

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