Electron Emission Due to Exciton Breakup from Negative Electron Affinity Diamond
- 30 January 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 74 (5), 777-780
- https://doi.org/10.1103/physrevlett.74.777
Abstract
We identify exciton breakup at the surface as the dominant source of photoelectron emission from negative electron affinity diamond (111): H for near band gap excitation up to 0.5 eV above threshold. Dependence of photoelectron emission characteristics upon excitation energy suggests the thermalization of carriers via a Fan phonon-cascade mechanism.Keywords
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