Fu, G. Z.

He, W.

Liu, S.J.

Ren, X.O.

Yue, Yuanzheng

Zhang, Y.F.

Zhu, C.F.

English

    Aalborg UniversitetNanocrystal formation and photoluminescence in Yb3+-Er3+-doped phosphosilicateglassLiu, S.J.; Fu, G. Z.; Ren, X.O.; Zhang, Y.F.; Zhu, C.F.; He, W.; Yue, YuanzhengPublication date:2012Document VersionAccepted author manuscript, peer reviewed versionLink to publication from Aalborg UniversityCitation for published version (APA):Liu, S. J., Fu, G. Z., Ren, X. O., Zhang, Y. F., Zhu, C. F., He, W., & Yue, Y. (2012). Nanocrystal formation andphotoluminescence in Yb3+-Er3+-doped phosphosilicate glass. Abstract from XIII International Conference onPhysics of Non-Crystalline Solids, Yichang, China.General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright ownersand it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.            ? Users may download and print one copy of any publication from the public portal for the purpose of private study or research.            ? You may not further distribute the material or use it for any profit-making activity or commercial gain            ? You may freely distribute the URL identifying the publication in the public portal ?Take down policyIf you believe that this document breaches copyright please contact us at vbn@aub.aau.dk providing details, and we will remove access tothe work immediately and investigate your claim.Downloaded from vbn.aau.dk on: December 25, 2020NANOCRYSTAL FORMATION AND PHOTOLUMINESCENCE IN Yb3+-Er3+-DOPED PHOSPHOSILICATE GLASS    S.J. Liu1,2*, G.Z. Fu1, X.O. Ren2, Y.F. Zhang1, C.F. Zhu1, W. He and Y.Z. Yue1,3 1Key Laboratory of Processing and Testing Technology of Glass & Functional Ceramics of Shandong Province, Shandong Polytechnic University, Jinan 250353, China 2Key Laboratory of Amorphous and Polycrystalline Materials in Shandong Polytechnic University, Shandong Polytechnic University, Jinan 250353, China 3Section of Chemistry, Aalborg University, Aalborg DK-9000, Denmark * Email address of presenting author:  lsj-24@163.com  Abstract: We report a new way to prepare Yb3+-Er3+-doped transparent phosphosilicate glass-ceramics containing nanocrystals with size of 20-30 nm. The nanocrystals were generated during cooling of the melt with a properly designed composition. The effect of alkali oxides on the crystallization of phosphosilicate melts was studied by means of differential scanning calorimetry, X-ray diffraction, and transmission electron microscopy. The infrared-to-visible frequency upconversion in the nanocrystal containing glass-ceramic was observed and quantified using the absorption and emission spectroscopy. It is likely that tetrahedral coordination of Mg2+ with oxygen contributes to the high transparency of the glass-ceramics. High efficient upconversion luminescence of Er3+ at 520, 545 and 656 nm was observed in the glass-ceramics under 980 nm excitation. However, the trend of the intensity change of red emission with crystalline types and contents is different from that of green emission. We clarify how the Yb3+→Er3+ energy transfer and the intensified local field effect simultaneously influence the upconversion luminescence. These glass-ceramics are promising candidates for upconversion luminescence.  Acknowledgments This work was supported by the Natural Science Fund of Elite Young Researchers of Shandong Province No. 2008BS04004, Science and Technology Star Plan of Young Researchers of Jinan City No. 20080118 and the Taishan Scholar Fund of Shandong Province.  Topic:                           Number of topic:  I prefer   oral     poster presentation 

Nanocrystal formation and photoluminescence in Yb3+-Er3+-doped phosphosilicate glass

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Nanocrystal formation and photoluminescence in Yb3+-Er3+-doped phosphosilicate glass

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