D. Sterratt et al., THE INTERACTION OF CHLORINE WITH SI(100)2X1 STUDIED USING SOFT-X-RAY PHOTOEMISSION AND PHOTON-STIMULATED ION DESORPTION, Surface science, 309, 1994, pp. 269-273
Chlorine adsorption on Si(100)2 x 1 at 295 K and 473 +/- 50 K has been
investigated using Si 2p soft X-ray photoemission and photon stimulat
ed ion desorption (PSID) at the SiL2,3 edge. The photoemission results
indicate that both monochloride and dichloride species are formed, wi
th a ratio of approximately 2.5:1. Essentially identical results are o
btained if the sample is exposed to chlorine from either an electroche
mical cell or a gas bottle. The PSID yield of Cl+ ions at the SiL2,3 e
dge is dominated by X-ray-induced electron stimulated desorption (XESD
).