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In molecular photodissociation, the thermionic emission, delayed emission and predissociation are the same? Otherwise, what is the difference between them?

My question is not about the solids, but I am saying about molecules/clusters.

References:

  1. J.U. Anderson et.al., J.Phys.B: At.Mol.Opt.Phys. 35 (2002) R1-R30.
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Thermionic emission and delayed emission are normally properties of metals, or at least solids, and I can't see any relation to photodissociation of molecules. Can you make your question a bit clearer because it isn't obvious what you're asking. –  John Rennie Mar 11 '13 at 18:14
    
@JohnRennie: Thermionic emission and delayed emission happens in clusters as well. My question is about the clusters. –  albedo Mar 12 '13 at 12:43
    
@JohnRennie: for reference: Reference: J.U.Anderson et.al. J.Phys.B: At.Mol.Opt.Phys.35(2002)R1-R30. –  albedo Mar 12 '13 at 12:49
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1 Answer 1

Thermionic emission is the emission of electrons from a certain solid (usually metals, due to free electrons - good conductivity) which are in a thermally induced state of excitement. This excitement causes the electrons to emitted from said material.

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