期刊
CRYSTAL GROWTH & DESIGN
卷 21, 期 5, 页码 3063-3070出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.cgd.1c00259
关键词
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资金
- National Academy of Sciences of Ukraine [0119U100791]
- International Research Project ScintLab of CNRS, France
- BMBF Germany [01DK18002]
- Polish National Agency for Academic Exchange [PPN/ULM/2020/1/00298/U/00001]
This study investigates the effect of carbon co-doping on Ce-doped garnets and found that tuning the cerium and carbon concentrations can enhance the light yield significantly, extending the application range of garnet-type materials.
This paper addresses the carbon co-doping of Ce-doped garnets, an efficient scintillation material and white light phosphor. The composition and the optical and scintillation properties of carbon-co-doped Y3Al5O12 (YAG) are studied at different cerium and carbon concentrations. YAG:Ce,C crystals were grown in the Ar + CO atmosphere from W crucibles. The carbon concentration reaches 0.5 atom %, but it does not affect the Ce distribution coefficient. The appearance and elimination of color centers are discussed in comparison to Ce-free YAG:C crystals. The tuning of cerium and carbon concentrations provides a light yield enhancement of up to 29 600 phot/MeV. The achieved enhancement may extend the application range of garnet-type phosphors and scintillators.
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