Improvement of the field emission properties of carbon nanotubes by CNT/Fe3O4 composite electrophoretic deposition

A simple CNT/Fe3O4 composite electrophoretic deposition method to improve the field emission cath- ode properties of carbon nanotubes （CNTs） is proposed. It is found that CNT/Fe3O4 composite electrophoretic deposition leads to better field emission performance than that of single CNT electrophoretic...

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Bibliographic Details
Published inJournal of semiconductors Vol. 32; no. 12; pp. 149 - 152
Main Author 郑隆武 胡利勤 杨帆 郭太良
Format Journal Article
LanguageChinese
English
Published IOP Publishing 01.12.2011
Subjects
场发射性能
场发射显示器
场发射阴极
复合
排放性能
沉积方法
电泳沉积
碳纳米管
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Summary:A simple CNT/Fe3O4 composite electrophoretic deposition method to improve the field emission cath- ode properties of carbon nanotubes （CNTs） is proposed. It is found that CNT/Fe3O4 composite electrophoretic deposition leads to better field emission performance than that of single CNT electrophoretic deposition. The re- sult is investigated using SEM, J-E and FE. After the process, the turn-on electric field decreases from 0.882 to 0.500 V//~m at an emission current density of 0.1 mA/cm^2, and the latter increases from 0.003 to 1.137 mA/cm^2 at an electric field of 0.64 V/μm. CNT/Fe3O4 composite electrophoretic deposition is an easy and effective cathode preparation for field emission display applications.
Bibliography:Zheng Longwu, Hu Liqin, Yang Fan, and Guo Tailiang（Institute of Optoelectronic Display Technology, School of Physics and Information Engineering, Fuzhou University, Fuzhou 350002, China）
A simple CNT/Fe3O4 composite electrophoretic deposition method to improve the field emission cath- ode properties of carbon nanotubes （CNTs） is proposed. It is found that CNT/Fe3O4 composite electrophoretic deposition leads to better field emission performance than that of single CNT electrophoretic deposition. The re- sult is investigated using SEM, J-E and FE. After the process, the turn-on electric field decreases from 0.882 to 0.500 V//~m at an emission current density of 0.1 mA/cm^2, and the latter increases from 0.003 to 1.137 mA/cm^2 at an electric field of 0.64 V/μm. CNT/Fe3O4 composite electrophoretic deposition is an easy and effective cathode preparation for field emission display applications.
11-5781/TN
carbon nanotubes; Fe3O4; field emission; electrophoretic deposition
ISSN:1674-4926
DOI:10.1088/1674-4926/32/12/126001