Improvement of field emission characteristics of carbon nanotubes by excimer laser treatment

被引:7
作者
Chen, KJ [1 ]
Hong, WK
Lin, CP
Chen, KH
Chen, LC
Cheng, HC
机构
[1] Natl Chiao Tung Univ, Dept Elect Engn, Hsinchu 300, Taiwan
[2] Natl Chiao Tung Univ, Inst Elect, Hsinchu 300, Taiwan
[3] Acad Sinica, Inst Atom & Mol Sci, Taipei 106, Taiwan
[4] Natl Taiwan Univ, Ctr Condensed Matter Sci, Taipei 106, Taiwan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2002年 / 41卷 / 10期
关键词
carbon nanotubes; field emission diode; field emission display;
D O I
10.1143/JJAP.41.6132
中图分类号
O59 [应用物理学];
学科分类号
摘要
The density of carbon nanotubes (CNTs) deposited by microwave plasma chemical vapor deposition (MPCVD) is extremely high, which results in screening effect in the electric field. To achieve excellent field emission characteristics. an excimer laser treatment (ELT) was introduced to reduce the density of CNTs, Scanning electron microscopy (SEM) micrographs showed reduced densities of the CNTs, and the measurement of electrical characteristics results repealed the improved field emission properties under suitable ELT conditions. The turn-on field decreased from 3 V/mum to 2.1 V/mum. and the emission Current density increased from 5.73 mA/cm(2) to 87.13 mA/cm(2) at the applied field of 5 V/mum.
引用
收藏
页码:6132 / 6136
页数:5
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