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http://hdl.handle.net/1942/28816| Title: | Fabrication, microstructure, and enhanced thermionic electron emission properties of vertically aligned nitrogen-doped nanocrystalline diamond nanorods | Authors: | KAMATCHI JOTHIRAMALINGAM, Sankaran Deshmukh, Sujit Korneychuk, Svetlana Yeh, Chien-Jui Thomas, Joseph Palathinkal DRIJKONINGEN, Sien POBEDINSKAS, Paulius VAN BAEL, Marlies Verbeeck, Johan Leou, Keh-Chyang Leung, Kam-Tong Roy, Susanta Sinha Lin, I-Nan HAENEN, Ken |
Issue Date: | 2018 | Publisher: | CAMBRIDGE UNIV PRESS | Source: | MRS COMMUNICATIONS, 8(3), p. 1311-1320 | Abstract: | Vertically aligned nitrogen-doped nanocrystalline diamond nanorods are fabricated from nitrogen-doped nanocrystalline diamond films using reactive ion etching in oxygen plasma. These nanorods show enhanced thermionic electron emission (TEE) characteristics, viz.. a high current density of 12.0 mA/cm(2) and a work function value of 4.5 eV with an applied voltage of 3 Vat 923 K. The enhanced TEE characteristics of these nanorods are ascribed to the induction of nanographitic phases at the grain boundaries and the field penetration effect through the local field enhancement from nanorods owing to a high aspect ratio and an excellent field enhancement factor. | Notes: | [Sankaran, Kamatchi Jothiramalingam; Drijkoningen, Sien; Pobedinskas, Paulius; Van Bael, Marlies K.; Haenen, Ken] Hasselt Univ, Inst Mat Res IMO, B-3590 Diepenbeek, Belgium. [Sankaran, Kamatchi Jothiramalingam; Drijkoningen, Sien; Pobedinskas, Paulius; Van Bael, Marlies K.; Haenen, Ken] IMEC Vzw, IMOMEC, B-3590 Diepenbeek, Belgium. [Deshmukh, Sujit; Roy, Susanta Sinha] Shiv Nadar Univ, Sch Nat Sci, Dept Phys, NH 91, Gautam Buddha Nagar 201314, Uttar Pradesh, India. [Korneychuk, Svetlana; Verbeeck, Johan] Univ Antwerp, Electron Microscopy Mat Sci EMAT, B-2020 Antwerp, Belgium. [Yeh, Chien-Jui; Leou, Keh-Chyang] Natl Tsing Hua Univ, Dept Engn & Syst Sci, Hsinchu, Taiwan. [Thomas, Joseph Palathinkal; Leung, Kam-Tong] Univ Waterloo, WATLab, Waterloo, ON N2L 3G1, Canada. [Thomas, Joseph Palathinkal; Leung, Kam-Tong] Univ Waterloo, Dept Chem, Waterloo, ON N2L 3G1, Canada. [Lin, I-Nan] Tamkang Univ, Dept Phys, Tamsui 251, Taiwan. | Document URI: | http://hdl.handle.net/1942/28816 | ISSN: | 2159-6859 | e-ISSN: | 2159-6867 | DOI: | 10.1557/mrc.2018.158 | ISI #: | 000448887900089 | Rights: | Materials Research Society 2018 | Category: | A1 | Type: | Journal Contribution |
| Appears in Collections: | Research publications |
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| S2159685918001581jsc 1311..1320.pdf Restricted Access | Published version | 6.21 MB | Adobe PDF | View/Open Request a copy |
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