Nano Au-decorated boron nitride nanotubes: Conductance modification and field-emission enhancement

Hua Chen; Hongzhou Zhang; Lan Fu; Ying Chen; James S. Williams; Chao Yu; Dapeng Yu

doi:10.1063/1.2943653

Nano Au-decorated boron nitride nanotubes: Conductance modification and field-emission enhancement

Hua Chen^*, Hongzhou Zhang, Lan Fu, Ying Chen, James S. Williams, Chao Yu, Dapeng Yu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

40 Citations (Scopus)

Abstract

This letter reports the electrical and field-emission properties of Au-decorated boron nitride nanotubes (Au-BNNTs). The insulating BNNTs become metallic after Au coating as the Au coverage exceeds a critical value. The Au decoration modifies the work function of the BNNTs and, as a consequence, the field-emission current densities of Au-BNNTs are significantly enhanced. Correspondingly, the turn-on field of the Au-BNNTs is reduced to one third and the emission current density is increased by four orders in contrast to pure BNNTs. The experimental results demonstrate that such Au-BNNTs are promising electron field emitters.

Original language	English
Article number	243105
Journal	Applied Physics Letters
Volume	92
Issue number	24
DOIs	https://doi.org/10.1063/1.2943653
Publication status	Published - 2008

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abstract = "This letter reports the electrical and field-emission properties of Au-decorated boron nitride nanotubes (Au-BNNTs). The insulating BNNTs become metallic after Au coating as the Au coverage exceeds a critical value. The Au decoration modifies the work function of the BNNTs and, as a consequence, the field-emission current densities of Au-BNNTs are significantly enhanced. Correspondingly, the turn-on field of the Au-BNNTs is reduced to one third and the emission current density is increased by four orders in contrast to pure BNNTs. The experimental results demonstrate that such Au-BNNTs are promising electron field emitters.",

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AU - Chen, Hua

AU - Zhang, Hongzhou

AU - Fu, Lan

AU - Chen, Ying

AU - Williams, James S.

AU - Yu, Chao

AU - Yu, Dapeng

PY - 2008

Y1 - 2008

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AB - This letter reports the electrical and field-emission properties of Au-decorated boron nitride nanotubes (Au-BNNTs). The insulating BNNTs become metallic after Au coating as the Au coverage exceeds a critical value. The Au decoration modifies the work function of the BNNTs and, as a consequence, the field-emission current densities of Au-BNNTs are significantly enhanced. Correspondingly, the turn-on field of the Au-BNNTs is reduced to one third and the emission current density is increased by four orders in contrast to pure BNNTs. The experimental results demonstrate that such Au-BNNTs are promising electron field emitters.

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VL - 92

JO - Applied Physics Letters

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Nano Au-decorated boron nitride nanotubes: Conductance modification and field-emission enhancement

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