Synthesis and field emission of single-crystalline copper vanadate nanobelts

被引：14

作者：

Mao, Changjie ^{[1
]}

Wang, Xiaojie ^{[1
]}

Wu, Xingcai ^{[1
]}

Zhu, Jun-Jie ^{[1
]}

Chen, Hong-Yuan ^{[1
]}

机构：

[1] Nanjing Univ, Sch Chem & Chem Engn, Key Lab Analyt Chem Life Sci, Nanjing 210093, Peoples R China

来源：

NANOTECHNOLOGY | 2008年 / 19卷 / 03期

关键词：

D O I：

10.1088/0957-4484/19/03/035607

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Single-crystalline nanobelts of a nonstoichiometric compound Cu1.55V2O6.55, with a thickness of 40-60 nm, width of 50-300 nm and length of several micrometers, have been synthesized on a large scale by a hydrothermal method. The structures and morphologies of the nanobelts were characterized by x-ray powder diffraction, x-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy and high-resolution transmission electron microscopy. A probable growth mechanism has also been discussed. The nanobelts exhibit a turn-on field of 11.0 V mu m(-1), which is defined as the macroscopic field required to produce a current density of 10 mu A cm(-2). It is anticipated that the nanobelts can serve as a candidate material for future field emitters.

引用

页数：6

共 15 条

[11] Synthesis and structural properties of stoichiometric and oxygen deficient CUV2O6 prepared via co-precipitation method [J].