Paper
31 October 1994 Diagnostics of the parameters, mechanism, and nature of the cadmium iodide crystal light sensitivity by optical absorption spectroscopy
Vyacheslav D. Bondar
Author Affiliations +
Proceedings Volume 2113, Optical Diagnostics of Materials and Devices for Opto-, Micro-, and Quantum Electronics; (1994) https://doi.org/10.1117/12.192000
Event: Optical Diagnostics of Materials and Devices for Opto-, Micro-, and Quantum Electronics: International Workshop, 1993, Kiev, Ukraine
Abstract
The mechanism and nature of photochemical transformation in cadmium iodide with copper impurity crystal followed by optical properties change were investigated. It was determined that the main mechanism is photostimulated decay of `copper-defect' complexes almost without activation and forming of Cui defect which are the lightsensitivity and absorption centers. The influence of copper-including complexes formed by isomorphic and anisomorphic replacement in anionic and cationic sublattices on cadmium iodide crystals lightsensitivity was studied. It was determined that cationic Eu coactivator causes the light insensitive defects forming, that is conditioned by [CuCd] centers stabilization due to crystal lattice deformation by europium. The influence of anionic sulphur coactivator leads to absorption increase that is conditioned by single [Cui]-including defects and complexes stabilization.
© (1994) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Vyacheslav D. Bondar "Diagnostics of the parameters, mechanism, and nature of the cadmium iodide crystal light sensitivity by optical absorption spectroscopy", Proc. SPIE 2113, Optical Diagnostics of Materials and Devices for Opto-, Micro-, and Quantum Electronics, (31 October 1994); https://doi.org/10.1117/12.192000
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KEYWORDS
Crystals

Copper

Absorption

Europium

Cadmium

Sulfur

Absorbance

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