Complex defects in crystal scintillation materials and phosphors

7th International Conference Radiation-thermal Effects and Processes in Inorganic Materials

材料科学;物理学

Lisitsyn, V.^1 ; Lisitsyna, L.^2 ; Polisadova, E.^1

National Research Tomsk Polytechnic University, Lenin Avenue 30, Tomsk, Russia^1

Tomsk State University of Architecture and Building, Solyanaya sq. 2, Tomsk, Russia^2

关键词: Complex defects;    Crystal scintillation;    Doped crystals;    High-efficiency;    Hydroxyl groups;    Intrinsic defects;    Luminescent property;    Zinc tungstate;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/168/1/012086/pdf
DOI  :  10.1088/1757-899X/168/1/012086

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The possibility of the existence of complex defects in pure and doped crystal phosphor discussed in work. The luminescent properties of mono- and nanocrystals of zinc tungstate, the powders of YAG with various compositions are studied. It is shown that the intrinsic defects, impurities, oxygen vacancies, the hydroxyl groups may be present in the structure of the complex defects (nanodefects). Nanodefects form during synthesis and have high efficiency of the transfer of excitation energy to the emission centres.