5 May 2010 Characterization of nitrogen-incorporated ultrananocrystalline diamond as a robust cold cathode material
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Carbon materials, including carbon nanotubes and nanostructured diamond, have been investigated for over a decade for application to electron field emission devices. In particular, they have been investigated because of their low power consumption, potential for miniaturization, and robustness as field emission materials, all properties that make nanocarbon materials strong candidates for applications as long life electron sources for mass spectrometers for space exploration, where electron sources are exposed to harsh environments, .A miniaturized mass spectrometer under development for in situ chemical analysis on the moon and other planetary environments requires a robust, long-lived electron source, to generate ions from gaseous sample using electron impact ionization. To this end, we have explored the field emission properties and lifetime of nitrogen-incorporated ultrananocrystalline diamond films. We will present recent results revealing that UNCD films with nitrogen incorporation during growth (N-UNCD) yield stable/high fieldinduced electron emission in high vacuum for up to 1000 hours.
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Stephanie A. Getty, Stephanie A. Getty, Orlando Auciello, Orlando Auciello, Anirudha V. Sumant, Anirudha V. Sumant, Xinpeng Wang, Xinpeng Wang, Daniel P. Glavin, Daniel P. Glavin, Paul R. Mahaffy, Paul R. Mahaffy, } "Characterization of nitrogen-incorporated ultrananocrystalline diamond as a robust cold cathode material", Proc. SPIE 7679, Micro- and Nanotechnology Sensors, Systems, and Applications II, 76791N (5 May 2010); doi: 10.1117/12.850585; https://doi.org/10.1117/12.850585

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