On the role of copper in the darkening of silver-halide photochromic glass
- 15 February 1976
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 28 (4), 209-211
- https://doi.org/10.1063/1.88699
Abstract
A photoinduced ESR signal has been detected in silver‐halide photochromic glasses. It is shown to arise from Cu++ ions distributed among distorted cation sites in the silver‐halide phase. Correlation with optical absorption data suggests that the photoinduced Cu++ may be directly responsible for a significant fraction of the photochromic darkening.Keywords
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