Laser pump and X-ray probe surface photovoltage spectroscopy on Si(111)

Autor: Zahid Hussain, Howard A. Padmore, G.D. Ackermann, Thornton E. Glover
Rok vydání: 2004
Předmět:
Zdroj: Journal of Modern Optics. 51:2805-2811
ISSN: 1362-3044
0950-0340
DOI: 10.1080/09500340408231839
Popis: Laser pump and X-ray probe core-level photoemission experiments probe surface photovoltage transients on p-type Si(111) surfaces. The data are consistent with a picture where the dynamics of mobile surface charge dominate the photovoltage shift, with changes in the surface-states charge density of only secondary importance. A value for the equilibrium band bending is determined, which suggests that a residual oxide layer reduces the density of surface states.
Databáze: OpenAIRE