Analysis of oxygen binding-energy variations for BaO on W
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Cited by (13)
Work function reduction by BaO: Growth of crystalline barium oxide on Ag(001) and Ag(111) surfaces
2015, Surface ScienceCitation Excerpt :Therefore, BaO/Ag(001) is found to have a lower work function than BaO2/Ag(001). This result is in agreement with that of Haas et al. [29] who found a clear anti-correlation between the oxygen binding energy and the work function. The difference of intensity seen in the UPS spectra is likely due to quantum efficiency differences.
Surface analysis of thermionic dispenser cathodes
2002, Applied Surface ScienceCitation Excerpt :Therefore, we conclude that all cathodes studied here have coverages below the optimum coverage for the corresponding substrates. In Table 1, we show estimated optimal Ba densities (“nBa optimum”) for the different cathodes, based on studies reported in the literature of Ba adsorption on the different substrate types (W: [16,17,60], Re: [54,61], Ir: [62], Os/Ru: [62]). Comparison of the Ba densities derived in this work and the optimal coverage for the different substrates indeed show that the cathode coverages are below the optimal coverages.
Supply and loss mechanisms of Ba dispenser cathodes
1999, Applied Surface ScienceBarium adsorption on the chemisorbed O(2 × 1)/Ni(110) surface
2009, Journal of Physics Condensed MatterSc-Containing (Scandate) Thermionic Cathodes: Mechanisms for Sc Enhancement of Emission
2022, IEEE Transactions on Electron Devices
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Present address: National Institute of Standards and Technology, Gaithersburg, MD 20899, USA.