The role of oxygen in hydrogen sensing by a platinum-gate silicon carbide gas sensor: An ultrahigh vacuum study.Tobin, Roger G.
Kahng, Yung Ho.
Ghosh, Ruby N.
We report several experiments under ultrahigh vacuum conditions that elucidate the role of oxygen in the functioning of silicon carbide field-effect gas sensors with nonporous platinum gates. The devices studied are shown to be sensitive both to hydrogen and to propene. All of the results are consistent with oxygen acting through its surface reactions with hydrogen. Three specific aspects are high... read more
- Tufts University. Department of Physics and Astronomy.
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- Original publication
- "The role of oxygen in hydrogen sensing by a platinum-gate silicon carbide gas sensor: An ultrahigh vacuum study," Y.H. Kahng, W. Lu, R.G. Tobin, R. Loloee and R.N. Ghosh, J. Appl. Phys. 105, 064511 (2009). http://dx.doi.org/10.1063/1.3093688.