Abstract
Properties of the quantum-cutting phosphors are dependent on various factors such as dopant concentration, crystallinity, homogeneity, particle size and surface morphology. Effective control of the above parameters can enhance the quantum-cutting ability of the phosphor material. Nano-sized particles of Y2O3:Tb3+,Yb3+ were prepared with a solution-based co-precipitation method and subsequent calcination. Effective control of the reaction parameters and doping concentration helped to produce uniform nanostructures with high quantum-cutting efficiency up to 181.1 %. The energy transfer mechanism between Tb3+ and Yb3+ was studied by considering their spectroscopic properties and time-resolved spectroscopy. The high efficiency and small particle size of the quantum-cutting phosphor Y2O3:Tb3+,Yb3+ make it a suitable candidate for its application in solar cells.
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We thank the financial support from the Korea Institute of Science and Technology (KIST) institutional funding (Project No. 2E26120) and the international cooperation program managed by the National Research Foundation of Korea (NRF-2014K1A3A1A09063246).
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Jadhav, A.P., Khan, S., Kim, S.J. et al. Near-infrared quantum cutting in Tb3+ and Yb3+-doped Y2O3 nanophosphors. Res Chem Intermed 43, 3463–3471 (2017). https://doi.org/10.1007/s11164-016-2427-9
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DOI: https://doi.org/10.1007/s11164-016-2427-9