Improvement of carbon nanotube field emission properties by ultrasonic nanowelding

被引：22

作者：

Zhao, Bo ^{[1
]}

Yadian, Boluo ^{[1
]}

Chen, Da ^{[1
]}

Xu, Dong ^{[1
]}

Zhang, Yafei ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Res Inst Micro Nano Sci & Technol, Minist Educ,Key Lab Thin Film & Microfabricat, Natl Key Lab Nano Micro Fabricat Technol, Shanghai 200240, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2008年 / 255卷 / 05期

关键词：

Carbon nanotube; Ultrasonic nanowelding; Field emission;

D O I：

10.1016/j.apsusc.2008.06.185

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ultrasonic nanowelding was used to improve the field emission properties of carbon nanotube (CNT) cathodes. The CNTs were deposited on the Ti-coated glass substrate by electrophoretic deposition. By pressing CNTs against metal (Ti) substrate under a vibrating force at ultrasonic frequency, a reliable and low resistance contact was obtained between CNTs and Ti. The scanning electron microscopy results show that CNTs are embedded into the metal substrate and act as stable field emitters. The welded cathode demonstrates an excellent field emission with high emission current density and good current stability. (C) 2008 Elsevier B. V. All rights reserved.

引用

页码：2087 / 2090

页数：4

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