A highly stable long-life GaP-GaAlP heterojunction cold cathode
- 1 May 1979
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 34 (9) , 545-548
- https://doi.org/10.1063/1.90881
Abstract
By a new activation method, namely, activation by Cs, Sb, and O2, stabilized cold cathodes could be obtained, and continuous operation over 3000 h has been achieved with a GaP‐GaAlP cold cathode. It is found that a major source of rapid efficiency loss of the cold cathode is the loss of Cs and/or O2 from the cold‐cathode surface.Keywords
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