Journal
CHEMISTRYSELECT
Volume 6, Issue 39, Pages 10554-10560Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/slct.202102822
Keywords
hydrothermal; Microwave chemistry; luminescence; doping; nanomaterials
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Funding
- Applied Basic Research Project Jilin University State Key Laboratory open project [2019-15]
- Scientific Research Innovation Team Funds of Chengdu Normal University [CSCXTD2020 A05]
- Sichuan Provincial College Students Innovation and Entrepreneurship training Program [S202014389197, S202014389147]
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Color tunable phosphors (Mn2+-doped Zn2GeO4) were successfully synthesized using a microwave hydrothermal process, leading to Mn2+ emission that can be tuned from 424 to 535 nm by substituting Mn2+ for Zn2+. The study also discussed the impact of Mn2+ doping on the phase and size transition of Zn2GeO4 nanocrystals, as well as the crystal growth mechanism of Zn2GeO4 : xMn phosphors.
In this study, color tunable phosphors (Mn2+-doped Zn2GeO4) were successfully synthesized by a facile microwave hydrothermal process with H2O as solvent. Crystal field modulation and band gap doping by Mn2+ substitution for Zn2+ realizes color tunable Mn2+ emission from 424 to 535 nm. Mn2+-doping on the phase and size transition of Zn2GeO4 nanocrystals was discussed, and a possible Zn2GeO4 : xMn crystal growth mechanism is discussed. Photoluminescence (PL) spectra indicate that the d-d transition of manganese ions (T-4(1)->(6)A(1)) corresponds to a strong green emission of Zn2GeO4 : xMn phosphors.
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