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Persistent URL http://purl.org/net/epubs/work/12272151
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Record Id 12272151
Title p-GaAs(Cs,O) – photocathodes: demarcation of domains of validity for practical models of the activation layer
Abstract The (Cs,O)-activation procedure of p-GaAs(Cs,O) – photocathode was studied for the purpose to demarcate domains of validity for two practical models of (Cs,O) – layer: the dipole layer (DL) model and the heterojunction (HJ) model. To do that, the activation of photocathode was prolonged far beyond the maximum of quantum efficiency and it was accompanied with monitoring of several photocathode parameters. Data obtained enabled us to determine borders of domains of validity for DL- and HJ- models, to define more exactly characteristic parameters of photocathodes within both domains and to reveal the dominant role of photoelectron scattering and recombination even within “thin” (Cs,O) – layer.
Organisation ASTeC , ASTeC-AP , STFC
Keywords photoelectron scattering , (Cs,O) –layer duality , NEA-photocathode
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Language English (EN)
Type Details URI(s) Local file(s) Year
Preprint Appl Phys Lett 2014. Activation Layer Model.pdf 2014
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