基于多层石墨烯-纳米管复合结构的场致发射体

Ji Xu, Qilong Wang, Z. Qi, Y. Zhai, Xiaobing Zhang, Jing Liu
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摘要

近年来,二维石墨烯与各种功能材料的研究为场致发射器件的发展注入了新的活力。本文提出了一种基于石墨烯-纳米管功能材料复合结构的场致发射体。采用热化学气相沉积(CVD)技术在铜箔上直接生长石墨烯。碳纳米管发射器被制造在金属衬底之外的石墨烯层的顶表面上。我们尝试用丝网印刷的方法制造碳纳米管发射体。设计的金属-石墨烯-碳纳米管结构的场发射性能将在采用新型水冷却方法的二极管中进行研究。多维金属-石墨烯-碳纳米管场发射结构是新型真空纳米电子器件的另一个潜在候选者。
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Field emitters based on the combined structures with multi-dimensional graphene-nanotube materials
Recent research on two-dimensional (2D) graphene with various functional materials has refreshed the development of field emission devices. Here, we propose field emitters based on the combined structures with multi-dimensional graphene-nanotube functional materials. Graphene is grown directly on the copper foils by using the thermal chemical vapor deposition (CVD). The carbon nanotube emitters are fabricated on the top surface of the graphene layer beyond the metallic substrate. We attempt to fabricate the carbon nanotube emitters via screen printing. The field emission performance of the designed metal-graphene-CNT structure is to be studied in a diode with a novel water cooling method. The multi-dimensional metal-graphene-CNT field emission structure is another potential candidate to the novel vacuum nano-electronic devices.
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