Infrared photoelectron emission from Scandate dispenser cathodes

Jensen, Kevin L.; Feldman, D. W.; Virgo, M.; O’Shea, P.G.

doi:10.1063/1.1600514

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Photo-enhanced Secondary Emission1

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Cited by 4 publications

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“…However, we do not yet understand the sub-gap photon interactions that generate the upwards band shifts. It is possible that laser absorption near the surface [3] or at the back interface changes the charge distribution such that the bulk band levels shift up. Interestingly, we re-examined the EDCs taken during heating and found similar upwards band shifts (e.g., band bending reduced to ~0.8 eV at 300°C), due most likely to thermal activation of (unintentional) boron acceptors.…”

Section: Photo-enhanced Secondary Emissionmentioning

confidence: 99%