Near-infrared photoluminescence bands in diamond
- 15 March 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 39 (8) , 5464-5467
- https://doi.org/10.1103/physrevb.39.5464
Abstract
The photoluminescence of several natural and synthetic diamonds of type I and type II has been examined in the spectral range 1.35–1.85 eV (920–670 nm) at 300 and 79 K at ambient pressure. Two emission bands with zero-phonon lines at 1.575 and 1.770 eV are observed in all yellow type-Ia natural diamonds. These bands are attributed to aggregate nitrogen defects and coexist with other known defect emission bands N2 and N3. The implications for high-pressure research using diamond anvils are discussed.Keywords
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