Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

Chemistry

PDF

Faculty & Staff Scholarship

Series

1996

Articles 1 - 2 of 2

Full-Text Articles in Entire DC Network

Valence-Band Electronic Structure Of Mos2 And Cs/Mos2(0002) Studied By Angle-Resolved X-Ray Photoemission Spectroscopy, Michelle Richards-Babb Jan 1996

Valence-Band Electronic Structure Of Mos2 And Cs/Mos2(0002) Studied By Angle-Resolved X-Ray Photoemission Spectroscopy, Michelle Richards-Babb

Faculty & Staff Scholarship

The angle dependence of the valence-band photoemission from the trigonal prismatic layered MoS2shows both the forward-scattering features normally observed in core-level photoelectron diffraction and, in addition, the initial-state orbital character associated with partially occupied, nonbonding MoIV(4dz2+4dx2−y2 +4dxy) orbitals near the top of the valence band. The difference in forward scattering between the Mo and S emitters is also used to assess relative contributions from the Mo and S atomic orbitals at specific binding energies within the valence band. Deposition of cesium (0.23 ML Cs with 1 ML equal to the Cs saturation coverage) onto the basal plane of MoS2 …


The Effect Of Atomic Hydrogen On The Growth Of Gallium Nitride By Molecular Beam Epitaxy, Zhonghai Yu, S. L. Buczkowski, N. C. Giles, T. H. Myers, Michelle Richards-Babb Jan 1996

The Effect Of Atomic Hydrogen On The Growth Of Gallium Nitride By Molecular Beam Epitaxy, Zhonghai Yu, S. L. Buczkowski, N. C. Giles, T. H. Myers, Michelle Richards-Babb

Faculty & Staff Scholarship

GaN was grown by molecular beam epitaxy using an rf plasma source. Growth under gallium‐rich conditions at 730 °C was required to produce high quality layers as indicated by photoluminescence, Hall effect, atomic force microscopy, and x‐ray diffraction measurements. Atomic hydrogen has a significant effect for Ga‐rich growth, increasing growth rates by as much as a factor of 2.