Enhanced electron field emission from CuO nanoplate arrays decorated with Au nanoparticles

被引：11
|
作者：
Li, Fei [1 ,2 ]
Wu, Shumao [1 ]
Zhang, Liangji [1 ]
Li, Zhen [1 ,2 ]
机构：
[1] China Univ Geosci, Fac Mat Sci & Chem, Wuhan 430074, Peoples R China
[2] China Univ Geosci, Minist Educ, Engn Res Ctr Nanogeomat, Wuhan 430074, Peoples R China
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2015年 / 120卷 / 04期
基金：
中国国家自然科学基金;
关键词：
EMITTER ARRAYS; FABRICATION; GROWTH; NANOSHEETS; NANOWIRES;
D O I：
10.1007/s00339-015-9321-y
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A simple and controllable method was reported for the decoration of CuO nanoplate arrays with Au nanoparticles. It had been achieved through the reaction between Sn2+ and AuCl4- in the presence of CuO nanoplate arrays. The structure and electron field emission properties of CuO nanoplate arrays decorated with different amounts of Au nanoparticles were investigated. The results demonstrated a remarkable enhancement of field emission performance of CuO nanoplate arrays decorated with Au nanoparticles. The effect of Au amount on the field emission performance was studied in detail, and excellent field emission properties such as a low turn-on electric field of 6.7 V/mu m and a high field enhancement factor of 516 could be realized from the optimized sample. On the basis of experimental results, a possible mechanism for the formation of the CuO nanoplate arrays decorated with Au nanoparticles was speculated.
引用
收藏
页码：1383 / 1389
页数：7
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