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In this study, we fabricated a cathode using screen printing method with carbon nanotubes and ZnO nanotetrapods as cathode emission materials and CsI nanoparticles as coating materials. After several comparative experiments, we find that 3g CsI dispersed into an organic paste which is composed of 20ml terpineol and 1g ethyl cellulose has significant results to improve the performance of the field...
Fabrication and testing process is as follows: firstly, Ag electrode is printed on the silicon substrate with a screen-printing method, 4 hours should be taken for barking at 550 °C. In the second step, cold cathode emitter should be prepared by the combination of carbon nanotubes (CNTs) and ZnO's slurry at a certain proportion. With the same screen-printing method, we print the composite emitter...
In the present paper, the field emission properties of mixture of carbon nanotubes, ZnO tetrapods and conductive particles is discussed. To improve the field-emission further, a field-emission cathode with special edge structure is proposed in this paper. In Figure 1, the silver cathode electrode is first coated on a glass substrate. Then, carbon nanotubes are deposited on the cathode electrode as...
The aim of this paper is to review our recent results on the growth and optimization of carbon nanotubes (CNTs) and CNT/Zinc Oxide nanostructures and present and discuss their suitability for various applications such as cold cathode electron sources for use in x-ray sources and lighting.
Using the tunneling effect under high electric field, field emission cold cathode could obtain an emission current which is large enough. In this paper, we reported the large field-emission from CNTs and ZnO tetrapods composited field emitters. Screen-printing method is used in our experiment and more than 15 mA field-emission current is obtained with 0.5 mm gap.
The following topics are dealt: vacuum nanoelectronics; carbon nanotube field emitter array applications; field emission cathode; field emission display; field emission mechanism characterisation; photoemission theory; ZnO nanostructured materials; novel emitter materials; XPS characterisation; field emission triode and MEMS.
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