Additive Coloration of Calcium Oxide
- 15 November 1968
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 175 (3), 1230-1232
- https://doi.org/10.1103/physrev.175.1230
Abstract
Single crystals of CaO have been additively colored by heating them at 1700°C in calcium vapor at pressures from 0.33 to 40 Torr. An asymmetric optical absorption band which peaks at 3.1 eV is observed to grow in proportion to the increase in calcium-vapor density and is ascribed to the formation of centers. A second band, which peaks at 3.6 eV and saturates with increasing calcium-vapor density, is ascribed to the formation of centers.
Keywords
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