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Chin. Opt. Lett.
 Home  List of Issues    Issue 01 , Vol. 08 , 2010    10.3788/COL20100801.0066


Er3+/Tm3+/Yb3+ tridoped oxyfluoride glass ceramics with efficient upconversion white-light emission
Chenxia Li1;2, Shiqing Xu2, Renguang Ye2, Shilong Zhao2, Degang Deng2, Songlin Zhuang1
1 School of Optical-Electrical and Computer Engineering, [University of Shanghai for Science and Technology], Shanghai 200093, China
2 College of Optical and Electronic Technology, [China Jiliang University], Hangzhou 310018, China

Chin. Opt. Lett., 2010, 08(01): pp.66-69-4

DOI:10.3788/COL20100801.0066
Topic:Materials
Keywords(OCIS Code): 160.4670  160.5690  

Abstract
A novel Tm<sup><sup>3+</sup></sup>/Er<sup><sup>3+</sup></sup>/Yb<sup><sup>3+</sup></sup> triply-doped glass ceramics containing BaF2 nano-crystals are successfully prepared. Fluoride nanocrystals BaF2 are successfully precipitated in glass matrix, which is affirmed by the X-ray diffraction results. The intense blue (476 nm), green (543 nm), and red (656 nm) emissions of the glass ceramics are simultaneously observed at room temperature under 980-nm excitation, and the emission luminescence intensity increases signiˉcantly compared with the precursor glass, which is attributed to the low phonon energy of °uoride nanocrystals when rare-earth ions are incorporated into the precipitated BaF2 nanocrystals. Under 980-nm excitation at 400 mW, the international commission on illumination (CIE) chromaticity coordinate (X = 0.278, Y = 0.358) of the tridoped oxy°uoride glass ceramics' upconversion emissions is close to the standard white-light illumination (X = 0.333, Y = 0.333). The results indicate that Tm<sup><sup>3+</sup></sup>/Er<sup><sup>3+</sup></sup>/Yb<sup><sup>3+</sup></sup> triply doped glass ceramics can act as suitable materials for potential three-dimensional displays applications.

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Received:2009/1/14
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Get Citation: Chenxia Li, Shiqing Xu, Renguang Ye, Shilong Zhao, Degang Deng, Songlin Zhuang, "Er3+/Tm3+/Yb3+ tridoped oxyfluoride glass ceramics with efficient upconversion white-light emission," Chin. Opt. Lett. 08(01), 66-69-4(2010)

Note: This work was supported by the National Natural Science Foundation of China (Nos. 60508014 and 50772102), the Program for New Century Excellent Talents in University (No. NCET-07-0786), the Science Technology Project of Zhejiang Province (No. 2008C21162), and the Natural Science Foundation of Zhejiang Province (No.R406007).



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