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Proceedings Paper

Diagnostics of the parameters, mechanism, and nature of the cadmium iodide crystals light sensitivity by optical absorption spectroscopy
Author(s): Vyacheslav D. Bondar
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Paper 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.

Paper Details

Date Published: 31 October 1994
PDF: 5 pages
Proc. SPIE 2113, Optical Diagnostics of Materials and Devices for Opto-, Micro-, and Quantum Electronics, (31 October 1994); doi: 10.1117/12.192000
Show Author Affiliations
Vyacheslav D. Bondar, Lviv Univ. (Ukraine)


Published in SPIE Proceedings Vol. 2113:
Optical Diagnostics of Materials and Devices for Opto-, Micro-, and Quantum Electronics
Sergei V. Svechnikov; Mikhail Ya. Valakh, Editor(s)

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