Crynodeb
The Pt/GaP(110) interface has been studied by core and valence level photoemission using synchrotron radiation. The results are characteristic of a reactive interface, where the GaP substrate is disrupted by the deposited platinum layer resulting in an increasing reacted Ga emission and a strong attenuation of the substrate Ga emission. The detailed analysis of band bending shows that Pt, being a high work-function material, nevertheless has a final pinning position which is close to that of other materials. The value for the Schottky barrier inferred from the photoemission data, Φbn is 1.56 eV. We observe a distortion of the equilibrium band arrangement by the incident photons, giving rise to a surface photovoltage even at room temperature. This effect can strongly influence the determination of surface band bending.
Iaith wreiddiol | Saesneg |
---|---|
Tudalennau (o-i) | 472-477 |
Nifer y tudalennau | 6 |
Cyfnodolyn | Surface Science |
Cyfrol | 251-252 |
Rhif cyhoeddi | C |
Dynodwyr Gwrthrych Digidol (DOIs) | |
Statws | Cyhoeddwyd - 01 Gorff 1991 |