X-ray-induced fluorescent centers formation in zinc- phosphate glasses doped with Ag and Cu ions

3rd International School and Conference on Optoelectronics, Photonics, Engineering and Nanostructures (Saint Petersburg OPEN 2016)

Klyukin, D.A.^1 ; Pshenova, A.S.^1 ; Sidorov, A.I.^1 ; Stolyarchuk, M.V.^1

Department of Optical Informational Technologies and Materials, ITMO University, Saint-Petersburg

199034, Russia^1

关键词: Co-doped glass;    Emission centers;    Fluorescent property;    Molecular clusters;    Quantum chemical calculations;    Time dependent density functional theory;    X ray irradiation;    Zinc phosphate glass;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/741/1/012125/pdf
DOI  :  10.1088/1742-6596/741/1/012125

来源: IOP

【 摘 要 】

Fluorescent properties of silver and copper doped zinc-phosphate glasses were studied. By X-ray irradiation of silver and copper co-doped glasses we could create and identify new emission centers which do not exist in single-doped samples. Doping of the glass with both silver and copper ions leads to the increase of quantum yield by 2.7 times. The study was complemented by quantum chemical calculations using the time-dependent density functional theory. It was shown that fluorescence may be attributed to the formation of mixed Ag-Cu molecular clusters.