Evaporation of Tetrapod ZnO Nanostructures and Its Influence on the Field-Emission Performance

被引：5

作者：

Cui, Yunkang ^{[1
,2
]}

Zhang, Xiaobing ^{[1
]}

Lei, Wei ^{[1
]}

Di, Yunsong ^{[1
]}

Xiao, Mei ^{[1
]}

Yang, Xiaxi ^{[1
]}

Zhao, Zhiwei ^{[1
]}

机构：

[1] Southeast Univ, Sch Sci & Engn, Display R&D Ctr, Nanjing 210096, Peoples R China

[2] Nanjing Inst Technol, Dept Basic Courses, Nanjing 211167, Peoples R China

来源：

IEEE ELECTRON DEVICE LETTERS | 2010年 / 31卷 / 05期

关键词：

Evaporation; field emission; ZnO cathode; ZINC-OXIDE NANOWIRES; CARBON NANOTUBES; NANORODS; OXYGEN;

D O I：

10.1109/LED.2010.2043048

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The ZnO cathode is a promising electron source due to its excellent field-emission performance. In this letter, we investigate the evaporation characteristics of the field emitters in a screen-printed ZnO cathode by a quadrupole mass spectrometer, energy-dispersive X-ray, and scanning electron microscopy. As the experiments show, the oxygen and zinc start to be evaporated if the temperature is higher than 1273 K. The quantity of evaporative materials increases with the increment of temperature, and the quantity of evaporated oxygen is much larger than that of zinc. The evaporations of oxygen and zinc have considerable effects on the field-emission properties of the ZnO cathode, particularly the turn-on field, the threshold electric field, and the emission current density. Therefore, the evaporation of field emitters is an important factor for the stability of the field-emission current.

引用

页码：479 / 481

页数：3

共 17 条

[1] Degradation and failure of carbon nanotube field emitters [J].

Bonard, JM ;

Klinke, C ;

Dean, KA ;

Coll, BF .

PHYSICAL REVIEW B, 2003, 67 (11) :10

[2] Synthesis and optical properties of tetrapod-like zinc oxide nanorods [J].

Dai, Y ;

Zhang, Y ;

Li, QK ;

Nan, CW .

CHEMICAL PHYSICS LETTERS, 2002, 358 (1-2) :83-86

[3] Evaporation of carbon nanotubes during electron field emission [J].

Dean, KA ;

Burgin, TP ;

Chalamala, BR .

APPLIED PHYSICS LETTERS, 2001, 79 (12) :1873-1875

[4] A CARBON NANOTUBE FIELD-EMISSION ELECTRON SOURCE [J].

DEHEER, WA ;

CHATELAIN, A ;

UGARTE, D .

SCIENCE, 1995, 270 (5239) :1179-1180

[5] ZnO nanowires formed on tungsten substrates and their electron field emission properties [J].

Dong, LF ;

Jiao, J ;

Tuggle, DW ;

Petty, JM ;

Elliff, SA ;

Coulter, M .

APPLIED PHYSICS LETTERS, 2003, 82 (07) :1096-1098

[6] ZnO nanowire field-effect transistor and oxygen sensing property [J].

Fan, ZY ;

Wang, DW ;

Chang, PC ;

Tseng, WY ;

Lu, JG .

APPLIED PHYSICS LETTERS, 2004, 85 (24) :5923-5925

[7] Mechanism responsible for initiating carbon nanotube vacuum breakdown [J].

Huang, NY ;

She, JC ;

Chen, J ;

Deng, SZ ;

Xu, NS ;

Bishop, H ;

Huq, SE ;

Wang, L ;

Zhong, DY ;

Wang, EG ;

Chen, DM .

PHYSICAL REVIEW LETTERS, 2004, 93 (07) :075501-1

[8] Nanodevice motion at microwave frequencies [J].

Huang, XMH ;

Zorman, CA ;

Mehregany, M ;

Roukes, ML .

NATURE, 2003, 421 (6922) :496-496

[9] Field-emission studies on thin films of zinc oxide nanowires [J].

Jo, SH ;

Lao, JY ;

Ren, ZF ;

Farrer, RA ;

Baldacchini, T ;

Fourkas, JT .

APPLIED PHYSICS LETTERS, 2003, 83 (23) :4821-4823

[10] Field emission from well-aligned zinc oxide nanowires grown at low temperature [J].

Lee, CJ ;

Lee, TJ ;

Lyu, SC ;

Zhang, Y ;

Ruh, H ;

Lee, HJ .

APPLIED PHYSICS LETTERS, 2002, 81 (19) :3648-3650

← 1 2 →