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- W4254704750 abstract "To convert ultraviolet (UV) light into near-infrared (NIR) light in phosphors is demanded for the development of solar cells. A series of NaYF4:Nd3+,Yb3+ white powder samples were prepared via the hydrothermal method. The crystal structure and photoluminescence properties of the samples were carefully studied using X-ray diffractometry (XRD) and photoluminescence spectra. The excitation and emission spectra of NaYF4:Nd3+,Yb3+ samples and the luminescence decay curves of Nd3+ and Yb3+ revealed an efficient energy transfer process from Nd3+ to Yb3+. This process resulted in the Yb3+ NIR fluorescent emission at 980 nm. Moreover, the lifetime of the Nd3+ 4F3/2 level decreased with the increase of Yb3+ doping concentration. The build-up time of the decay curves of the Yb3+ 2F5/2 level further verified the energy transfer process. Meanwhile, energy transfer efficiency based on different Yb3+ doping concentrations was achieved." @default.
- W4254704750 created "2022-05-12" @default.
- W4254704750 date "2011-03-01" @default.
- W4254704750 modified "2023-09-26" @default.
- W4254704750 title "Clean+ System – Transparenz und lückenlose Dokumentation im Bereich hygienische Krankenhausreinigung" @default.
- W4254704750 doi "https://doi.org/10.1016/j.khinf.2011.02.005" @default.
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