Charge Transfer in Amorphous Colored WFilms Observed by X-Ray Photoelectron Spectroscopy
- 6 December 1976
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 37 (23), 1564-1567
- https://doi.org/10.1103/physrevlett.37.1564
Abstract
X-ray photoemission spectra of W core levels and valence band in transparent and in situ uv-colored amorphous W films show that coloration is related to the existence of occupied electronic states situated ∼2 eV above the valence band and localized on some tungsten sites. It is shown that x-ray photoelectron spectroscopy and optical data are understood if one considers the formation of a hydrogen-tungsten-bronze-like compound during uv irradiation.
Keywords
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