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Flexible three-dimensional CeB6 nanowire arrays and excellent field emission emitters.

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Title: Flexible three-dimensional CeB6 nanowire arrays and excellent field emission emitters.
Authors: Fu, Can1, Chang, Yangyang1, Wang, Qishang1, Wang, Yanrui1, Yu, Bebnhai1, Guo, Pengfei1, Xu, Jinyou1, Sun, Haibin1, Luo, Yongsong1, Xu, Junqi1,2, Liu, Jiangfeng2
Source: Journal of Alloys & Compounds. Dec2017, Vol. 729, p997-1003. 7p.
Subjects: Electric properties of nanowires, Cerium compounds, Field emitter arrays, Transmission electron microscopy, X-ray powder diffraction
Abstract: We have developed an effective chemical-vapor-deposition method to fabricate large-scale cerium hexaboride nanowire arrays on flexible carbon substates. The nanowires show diameters of 80–200 nm and lengths of 5–30 μm. The high resolution transmission electron microcopy (HRTEM) indicates that the nanowire is of high crystalline with the growth orientation of [001]. The field emission of these nanowires shows favorable electron emission properties, including the turn-on fields of 1.76 V μm −1 , threshold fields of 3.60 V μm −1 and high field emission enhancement factors of 2203 ± 27, respectively. The field emission properties depending on the gap between the anode and cathode are also investigated. The results show that the turn-on fields and threshold fields decrease from 1.76 and 3.60 V μm −1 to 1.28 and 2.77 V μm −1 , respectively; whereas the field emission enhancement factors increase from 2203 ± 27 to 4012 ± 66 with the anode-cathode distance increasing from 500 to 700 μm. The excellent field emission performances indicate the promising application prospects of this material in flexible electronics and optoelectronics, such as high light electron sources, flat panel displays and thermal electrical power converters. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 125781285
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Flexible three-dimensional CeB6 nanowire arrays and excellent field emission emitters.
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Alloys+%26+Compounds%22">Journal of Alloys & Compounds</searchLink>. Dec2017, Vol. 729, p997-1003. 7p.
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  Data: <searchLink fieldCode="DE" term="%22Electric+properties+of+nanowires%22">Electric properties of nanowires</searchLink><br /><searchLink fieldCode="DE" term="%22Cerium+compounds%22">Cerium compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Field+emitter+arrays%22">Field emitter arrays</searchLink><br /><searchLink fieldCode="DE" term="%22Transmission+electron+microscopy%22">Transmission electron microscopy</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+powder+diffraction%22">X-ray powder diffraction</searchLink>
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  Label: Abstract
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  Data: We have developed an effective chemical-vapor-deposition method to fabricate large-scale cerium hexaboride nanowire arrays on flexible carbon substates. The nanowires show diameters of 80–200 nm and lengths of 5–30 μm. The high resolution transmission electron microcopy (HRTEM) indicates that the nanowire is of high crystalline with the growth orientation of [001]. The field emission of these nanowires shows favorable electron emission properties, including the turn-on fields of 1.76 V μm −1 , threshold fields of 3.60 V μm −1 and high field emission enhancement factors of 2203 ± 27, respectively. The field emission properties depending on the gap between the anode and cathode are also investigated. The results show that the turn-on fields and threshold fields decrease from 1.76 and 3.60 V μm −1 to 1.28 and 2.77 V μm −1 , respectively; whereas the field emission enhancement factors increase from 2203 ± 27 to 4012 ± 66 with the anode-cathode distance increasing from 500 to 700 μm. The excellent field emission performances indicate the promising application prospects of this material in flexible electronics and optoelectronics, such as high light electron sources, flat panel displays and thermal electrical power converters. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Alloys & Compounds is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.jallcom.2017.09.240
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 7
        StartPage: 997
    Subjects:
      – SubjectFull: Electric properties of nanowires
        Type: general
      – SubjectFull: Cerium compounds
        Type: general
      – SubjectFull: Field emitter arrays
        Type: general
      – SubjectFull: Transmission electron microscopy
        Type: general
      – SubjectFull: X-ray powder diffraction
        Type: general
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      – TitleFull: Flexible three-dimensional CeB6 nanowire arrays and excellent field emission emitters.
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            NameFull: Fu, Can
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            NameFull: Chang, Yangyang
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            – D: 30
              M: 12
              Text: Dec2017
              Type: published
              Y: 2017
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