Accession Number:

ADA279450

Title:

Surface Second Harmonic Studies of Si(111)/Electrolyte and Si(111)/SiO2/ Electrolyte Interfaces

Descriptive Note:

Technical rept. Jun 1993-May 1994

Corporate Author:

OREGON UNIV EUGENE DEPT OF CHEMISTRY

Report Date:

1994-05-13

Pagination or Media Count:

17.0

Abstract:

The optical second harmonic SH response from Si111 electrode surfaces has been studied and has been found to be highly potential dependent. For both H-terminated Si111 surfaces in NJ4F, and oxide covered surfaces biased in H2SO4, the phase and the amplitude display a potential dependence which we attribute to field effect within the semiconductor space-charge region and at the surface of the Si111 electrode. The studies are the first to demonstrate that for Si1110oxide samples the potential dependence in the SH phase can be correlated with oxide thickness as demonstrated by examining samples of 0-40 Angstrom thickness. Si111Oxide electrodes, Electrochemistry

Subject Categories:

  • Inorganic Chemistry
  • Physical Chemistry
  • Electrical and Electronic Equipment
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE