High-Purity Glasses Based on Arsenic Chalcogenides
RUSSIAN ACADEMY OF SCIENCES MOSCOW INSTITUTE OF CHEMISTRY OF HIGH PURITY SUBSTANCES
Pagination or Media Count:
Low impurity content is the essential requirement to many applications of vitreous arsenic chalcogenides as a material for optoelectronics. Investigations carried out in last ten years increased the knowledge volume about the nature and origin of impurities in chalcogenide glasses, their effect on glass properties, especially on the transmittance in middle IR region and on radiation strength. These properties are most sensitive to impurity presence. The minimum calculated content of impurities, leading to observation of impurity contribution to the property value, is 0.1 - 100 ppb at. for different impurity groups. The effective methods of preparations and analysis of high purity glasses are developed.
- Electrooptical and Optoelectronic Devices
- Ceramics, Refractories and Glass