Characterization of Czochralski‐ and hydrothermal‐grown Bi12SiO20

Autor: M. T. Harris, J. J. Larkin, R. N. Brown, W. B. Leigh
Rok vydání: 1994
Předmět:
Zdroj: Journal of Applied Physics. 76:660-666
ISSN: 1089-7550
0021-8979
Popis: An investigation was made of the defect characteristics of single‐crystal Bi12SiO20 (BSO) grown by both Czochralski (Cz) and hydrothermal transport methods. Only Cz‐grown BSO is photorefracting using a coherent pumping source centered around 500 nm, as undoped hydrothermal BSO is transparent throughout the visible spectrum. Thermally stimulated current (TSC) studies in conjunction with temperature‐dependent optical‐absorption measurements and room‐temperature photoconductivity data all indicate that the hydrothermal material is near intrinsic in terms of its low defect content. TSC measurements made below room temperature indicate that concentrations of traps of activation energy
Databáze: OpenAIRE