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Electron field emission of a nitrogen-doped TiO2 nanotube array
Liu, Gang1,2,3; Li, Feng1; Wang, Da-Wei1; Tang, Dai-Ming1; Liu, Chang1; Ma, Xiuliang1; Lu, Gao Qing2,3; Cheng, Hui-Ming1
Corresponding AuthorLiu, Gang()
2008-01-16
Source PublicationNANOTECHNOLOGY
ISSN0957-4484
Volume19Issue:2Pages:6
AbstractA nitrogen-doped titania nanotube array vertically aligned on a titanium substrate exhibits efficient electron field emission. Such a titania nanotube array shows very good stability at high field emission current (fluctuation <3% at field emission current of 160 mu A within 4 h) and low turn-on and threshold fields (11.2 and 24.4 V mu m(-1), respectively) because of the coexistence of doped nitrogen and concomitant oxygen vacancies in titania nanotubes. This work demonstrates the possibility of converting pure titania nanotubes without field emission into a favorable and efficient one through the introduction of acceptor states and donor states both above the valence band maximum and below the conduction band minimum in the band gap of titania by the doped nitrogen and concomitant oxygen vacancies, respectively. Application of this doping concept to other transition metal oxides can be expected to broaden the scope of field emission materials.
DOI10.1088/0957-4484/19/02/025606
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000252828900017
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:109[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/94284
Collection中国科学院金属研究所
Corresponding AuthorLiu, Gang
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Univ Queensland, Sch Engn, ARC Ctr Excellence Funct Nanomat, Brisbane, Qld 4072, Australia
3.Univ Queensland, Australia Inst Bioengn & Nanotechnol, Brisbane, Qld 4072, Australia
Recommended Citation
GB/T 7714
Liu, Gang,Li, Feng,Wang, Da-Wei,et al. Electron field emission of a nitrogen-doped TiO2 nanotube array[J]. NANOTECHNOLOGY,2008,19(2):6.
APA Liu, Gang.,Li, Feng.,Wang, Da-Wei.,Tang, Dai-Ming.,Liu, Chang.,...&Cheng, Hui-Ming.(2008).Electron field emission of a nitrogen-doped TiO2 nanotube array.NANOTECHNOLOGY,19(2),6.
MLA Liu, Gang,et al."Electron field emission of a nitrogen-doped TiO2 nanotube array".NANOTECHNOLOGY 19.2(2008):6.
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