Low temperature synthesis of lithium-doped nanocrystalline diamond films with enhanced field electron emission properties

Kamatchi Jothiramalingam Sankaran*, Kalpataru Panda, Ping Yen Hsieh, Paulius Pobedinskas, Jeong Young Park, Marlies K. Van Bael, Nyan Hwa Tai, I. Nan Lin, Ken Haenen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Low temperature (350°C) grown conductive nanocrystalline diamond (NCD) films were realized by lithium diffusion from Cr-coated lithium niobate substrates (Cr/LNO). The NCD/Cr/LNO films showed a low resistivity of 0.01 Ω·cm and excellent field electron emission characteristics, viz. a low turn-on field of 2.3 V/µm, a high-current density of 11.0 mA/cm2 (at 4.9 V/m), a large field enhancement factor of 1670, and a life-time stability of 445 min (at 3.0 mA/cm2). The low temperature deposition process combined with the excellent electrical characteristics offers a new prospective for applications based on temperature sensitive materials.

Original languageEnglish
Article number653
JournalNanomaterials
Volume8
Issue number9
DOIs
Publication statusPublished - 09-2018

All Science Journal Classification (ASJC) codes

  • General Chemical Engineering
  • General Materials Science

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