Design and achieving mechanism of upconversion white emission based on Yb/Tm/Er tri-doped KY3F10 nanocrystals |
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| Authors: | Tao PangWanghe Cao Mingming XingXixian Luo Xiaofei Yang |
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| Affiliation: | a Optoelectronic Technology Institute, Dalian Maritime University, Liaoning Dalian 116026, China
b Jiangsu Province Key Laboratory of Mordern Optical Technology, SooChow University, Jiangsu Suzhou 215006, China |
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| Abstract: | KY3F10:Yb3+/Tm3+/Er3+ upconversion nanocrystals are synthesized via a simple hydrothermal procedure. The nanocrystals emit the near equal energy white light with high brightness and favorable color balance when excited using a 980 nm continuous wave diode laser. The research of upconversion mechanism indicates that in addition to the energy transfer processes from Yb3+ to Tm3+ and Er3+, respectively, there exists a new process 1G4 (Tm3+) + 4I11/2 (Er3+) → 3H4 (Tm3+) + 4S3/2 (Er3+). |
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| Keywords: | Upconversion white emission KY3F10 nanocrystals Rare earth |
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