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Low temperature synthesis of lithium-doped nanocrystalline diamond films with enhanced field electron emission properties
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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 和 Ken Haenen
Nanomaterials, 卷.8(9), 653
09/2018
DOI: https://doi.org/10.3390/nano8090653

摘要

Field electron emission Lithium Low temperature Nanocrystalline diamond Materials Science (all) Chemical Engineering (all)
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/cm 2 (at 4.9 V/m), a large field enhancement factor of 1670, and a life-time stability of 445 min (at 3.0 mA/cm 2 ). The low temperature deposition process combined with the excellent electrical characteristics offers a new prospective for applications based on temperature sensitive materials.

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