Temperature dependence of field emission from cupric oxide nanobelt films

被引：166

作者：

Chen, J ^{[1
]}

Deng, SZ

Xu, NS

Zhang, WX

Wen, XG

Yang, SH

机构：

[1] Zhongshan Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China

[2] Zhongshan Univ, Guangdong Prov Key Lab Display Mat & Technol, Guangzhou 510275, Peoples R China

[3] Hong Kong Univ Sci & Technol, Inst Nano Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 04期

关键词：

D O I：

10.1063/1.1595156

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Films of aligned cupric oxide nanobelts have been prepared in an aqueous solution at room temperature. Field-emission characteristics, including emission-current-applied-field plot and emission site distribution, have been studied using the transparent anode technique. In addition, the temperature dependence of the field-emission characteristics has been studied from room temperature to 750 K. The threshold field for obtaining a current density of 10 muA/cm(2) is similar to11 MV/m. This decreases with increasing temperature, and at 700 K it is similar to6 MV/m. At a fixed field of 10 MV/m, about a three-orders-of-magnitude increase of the emission current level has been observed. The results show that the cupric oxide nanobelt is a promising candidate for cathode material in a thermoelectric conversion device based on field emission. (C) 2003 American Institute of Physics.

引用

页码：746 / 748

页数：3

共 16 条

[1] Study of field electron emission phenomenon associated with N-doped amorphous diamond thin films
Chen, J
Wei, AX
Deng, SZ
Lu, Y
Zheng, XG
Chen, DH
Mo, D
Peng, SQ
Xu, NS
[J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1998, 16 (02): : 697 - 699
[2] Field emission from crystalline copper sulphide nanowire arrays
Chen, J
Deng, SZ
Xu, NS
Wang, SH
Wen, XG
Yang, SH
Yang, CL
Wang, JN
Ge, WK
[J]. APPLIED PHYSICS LETTERS, 2002, 80 (19) : 3620 - 3622
[3] Analysis-of the field-electron energy distribution from amorphous carbon-nitride films
Chen, J
Huang, NY
Liu, XW
Deng, SZ
Xu, NS
[J]. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 2003, 21 (01): : 567 - 570
[4] A CARBON NANOTUBE FIELD-EMISSION ELECTRON SOURCE
DEHEER, WA
CHATELAIN, A
UGARTE, D
[J]. SCIENCE, 1995, 270 (5239) : 1179 - 1180
[5] ZnO nanowires formed on tungsten substrates and their electron field emission properties
Dong, LF
Jiao, J
Tuggle, DW
Petty, JM
Elliff, SA
Coulter, M
[J]. APPLIED PHYSICS LETTERS, 2003, 82 (07) : 1096 - 1098
[6] Electron emission in intense electric fields
Fowler, RH
Nordheim, L
[J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-CONTAINING PAPERS OF A MATHEMATICAL AND PHYSICAL CHARACTER, 1928, 119 (781) : 173 - 181
[7] GOOD RH, 1956, ENCYCL PHYS, V21, P191
[8] CuO nanowires can be synthesized by heating copper substrates in air
Jiang, XC
Herricks, T
Xia, YN
[J]. NANO LETTERS, 2002, 2 (12) : 1333 - 1338
[9] Field emission from well-aligned zinc oxide nanowires grown at low temperature
Lee, CJ
Lee, TJ
Lyu, SC
Zhang, Y
Ruh, H
Lee, HJ
[J]. APPLIED PHYSICS LETTERS, 2002, 81 (19) : 3648 - 3650
[10] Semiconductor nanowires: synthesis, structure and properties
Lee, ST
Wang, N
Lee, CS
[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 286 (01): : 16 - 23

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