Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5425477 | Surface Science | 2006 | 7 Pages |
Abstract
In the present work HCl-isopropanol treated and vacuum annealed InP(0 0 1) surfaces were studied by means of low-energy electron diffraction (LEED), soft X-ray photoemission (SXPS), and reflectance anisotropy (RAS) spectroscopies. The treatment removes the natural oxide and leaves on the surface a physisorbed overlayer containing InClx and phosphorus. Annealing at 230 °C induces desorption of InClx overlayer and reveals a P-rich (2 Ã 1) surface. Subsequent annealing at higher temperature induces In-rich (2 Ã 4) surface. The structural properties of chemically prepared InP(0 0 1) surfaces were found to be similar to those obtained by decapping of As/P-capped epitaxial layers.
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
O.E. Tereshchenko, D. Paget, P. Chiaradia, E. Placidi, J.E. Bonnet, F. Wiame, A. Taleb-Ibrahimi,