Abstract
The nature of the 2.7-eV photoluminescence in as-manufactured oxygen-deficient high-purity silica glasses is studied. Luminescence lifetime measurements and ab initio molecular-orbital calculations are consistent with the luminescence being a triplet-to-ground transition of a neutral oxygen-vacancy defect (?Si-Si?).
- Received 3 November 1988
DOI:https://doi.org/10.1103/PhysRevLett.62.1388
©1989 American Physical Society
