具有增强场电子发射性能的锂掺杂纳米晶金刚石薄膜的低温合成
Low Temperature Synthesis of Lithium-Doped Nanocrystalline Diamond Films with Enhanced Field Electron Emission Properties.
作者信息
Sankaran Kamatchi Jothiramalingam, Panda Kalpataru, Hsieh Ping-Yen, Pobedinskas Paulius, Park Jeong Young, Van Bael Marlies K, Tai Nyan-Hwa, Lin I-Nan, Haenen Ken
机构信息
Institute for Materials Research (IMO), Hasselt University, 3590 Diepenbeek, Belgium.
IMOMEC, IMEC vzw, 3590 Diepenbeek, Belgium.
出版信息
Nanomaterials (Basel). 2018 Aug 24;8(9):653. doi: 10.3390/nano8090653.
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.
通过从涂有铬的铌酸锂衬底（Cr/LNO）进行锂扩散，实现了低温（350°C）生长的导电纳米晶金刚石（NCD）薄膜。NCD/Cr/LNO薄膜表现出0.01Ω·cm的低电阻率和优异的场电子发射特性，即2.3V/μm的低开启场、11.0mA/cm²（在4.9V/μm时）的高电流密度、1670的大场增强因子以及445分钟（在3.0mA/cm²时）的寿命稳定性。低温沉积工艺与优异的电学特性相结合，为基于温度敏感材料的应用提供了新的前景。
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