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Properties of carbon nanotube field emission cold cathode based Ni electrode

Pan Jin-yan

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Abstract

Electrode has great importance of interface structure and electrical conductivity in CNT cathode, accordingly field emission properties and life span of CNT cathode are influenced.To enhance adhesion performance between CNT and electrode,Nickel electrode which is easy to be carbonized is fabricated.Microscopic characterization shows that Ni3 C phase is synthesized in CNT cathode printed on Nickel substrate. Hence probability of ohmic contact increases and the conductivity of CNT cathode is improved,and decreases and even eliminates potential barrier between electrode and CNT,as well as increase electric conductivity of CNT cathode.Field emission tests show that field emission current density and uniformity of CNT cathode based on Ni electrode are enhanced remarkably,especially for ITO/Ni electrode,uniform and high luminance can be excited.

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What this paper is about

Electrode has great importance of interface structure and electrical conductivity in CNT cathode, accordingly field emission properties and life span of CNT cathode are influenced.To enhance adhesion performance between CNT and electrode,Nickel electrode which is easy to be carbonized is fabricated.Microscopic characterization shows that Ni3 C phase is synthesized in CNT cathode printed on Nickel substrate. Hence probability of ohmic contact increases and the conductivity of CNT cathode is improved,and decreases and even eliminates potential barrier between electrode and CNT,as well as increase electric conductivity of CNT cathode.Field emission tests show that field emission current density and uniformity of CNT cathode based on Ni electrode are enhanced remarkably,especially for ITO/Ni electrode,uniform and high luminance can be excited.

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Available abstract

Electrode has great importance of interface structure and electrical conductivity in CNT cathode, accordingly field emission properties and life span of CNT cathode are influenced.To enhance adhesion performance between CNT and electrode,Nickel electrode which is easy to be carbonized is fabricated.Microscopic characterization shows that Ni3 C phase is synthesized in CNT cathode printed on Nickel substrate. Hence probability of ohmic contact increases and the conductivity of CNT cathode is improved,and decreases and even eliminates potential barrier between electrode and CNT,as well as increase electric conductivity of CNT cathode.Field emission tests show that field emission current density and uniformity of CNT cathode based on Ni electrode are enhanced remarkably,especially for ITO/Ni electrode,uniform and high luminance can be excited.

Key concepts: Materials science, Cathode, Carbon nanotube, Electrode, Field electron emission, Ohmic contact, Optoelectronics, Conductivity

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