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Title: | Microstructural Effect on the Enhancement of Field Electron Emission Properties of Nanocrystalline Diamond Films by Li-Ion Implantation and Annealing Processes | Authors: | KAMATCHI JOTHIRAMALINGAM, Sankaran Yeh, Chien-Jui Kunuku, Srinivasu Thomas, Joseph Palathinkal POBEDINSKAS, Paulius DRIJKONINGEN, Sien Sundaravel, Balakrishnan Leou, Keh-Chyang Leung, Kam Tong VAN BAEL, Marlies Schreck, Matthias Lin, I-Nan HAENEN, Ken |
Issue Date: | 2018 | Publisher: | AMER CHEMICAL SOC | Source: | ACS OMEGA, 3(8), p. 9956-9965 | Abstract: | The impact of lithium-ion implantation and postannealing processes on improving the electrical conductivity and field electron emission (FEE) characteristics of nitrogen-doped nanocrystalline diamond (nNCD) films was observed to be distinctly different from those of undoped NCD (uNCD) films. A high-dose Li-ion implantation induced the formation of electron trap centers inside the diamond grains and amorphous carbon (a-C) phases in grain boundaries for both types of NCD films. Postannealing at 1000 C healed the defects, eliminated the electron trap centers, and converted the a-C into nanographitic phases. The abundant nanographitic phases in the grain boundaries of the nNCD films as compared to the uNCD films made an interconnected path for effectual electron transport and consequently enhanced the FEE characteristics of nNCD films. | Notes: | [Sankaran, Kamatchi Jothiramalingam; Pobedinskas, Paulius; Drijkoningen, Sien; Van Bael, Marlies K.; Haenen, Ken] Hasselt Univ, Inst Mat Res IMO, B-3590 Diepenbeek, Belgium. [Sankaran, Kamatchi Jothiramalingam; Pobedinskas, Paulius; Drijkoningen, Sien; Van Bael, Marlies K.; Haenen, Ken] IMEC VZW, IMOMEC, B-3590 Diepenbeek, Belgium. [Yeh, Chien-Jui; Kunuku, Srinivasu; Leou, Keh-Chyang] Natl Tsing Hua Univ, Dept Engn & Syst Sci, Hsinchu 30013, 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. [Sundaravel, Balakrishnan] Indira Gandhi Ctr Atom Res, Mat Sci Grp, Kalpakkam 603102, Tamil Nadu, India. [Schreck, Matthias] Univ Augsburg, Inst Phys, D-86135 Augsburg, Germany. [Lin, I-Nan] Tamkang Univ, Dept Phys, Tamsui 251, Taiwan. | Keywords: | Chemistry, Multidisciplinary | Document URI: | http://hdl.handle.net/1942/28846 | ISSN: | 2470-1343 | e-ISSN: | 2470-1343 | DOI: | 10.1021/acsomega.8b01104 | ISI #: | 000444182900140 | Rights: | This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2019 |
Appears in Collections: | Research publications |
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sankaran 1.pdf | Published version | 7.09 MB | Adobe PDF | View/Open |
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