Abstract
Antimony-doped tin(IV) oxide Sn1-xSbxO2 prepared by a high-temperature (1300 K) solid-state synthetic procedure has been studied over the composition range0 <x <0.03by X-ray and ultraviolet photoelectron spectroscopy (XPS and UPS) and high-resolution electron-energy-loss spectroscopy (HREELS). Pronounced enrichment by antimony close to the surface is evident from XPS with a heat of segregation approaching 30 kJ/mole. However, no increase in the surface free-carrier concentration is evident from the conduction-to-valence band intensity ratio in UPS or from the surface plasmon frequency in EELS. It is concluded that electrons associated with segregated Sb ions occupy a lone-pair-likesp hybrid surface state whose energy lies well below that of the conduction band. © 1984 Academic Press, Inc.
| Original language | English |
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| Pages (from-to) | 345-354 |
| Number of pages | 9 |
| Journal | Journal of Solid State Chemistry |
| Volume | 51 |
| Issue number | 3 |
| Publication status | Published - 1 Mar 1984 |