Enhancement of upconversion luminescence due to the formation of nanocrystals in Er3+-doped tellurite glasses

Gang Zhou; Shixun Dai; Chunlei Yu; Junjie Zhang; Guonian Wang; Lei Wen; Zhonghong Jiang

Chinese Optics Letters, 2006, 4 (1): 0136, Published Online: Jun. 6, 2006

Enhancement of upconversion luminescence due to the formation of nanocrystals in Er3+-doped tellurite glasses Download： 666次

论文大纲

Gang Zhou ^1,2,*Shixun Dai ^1,3Chunlei Yu ^1,2Junjie Zhang ¹Guonian Wang ^1,2Lei Wen ¹Zhonghong Jiang ¹

Author Affiliations

¹ Laser Glass Laboratory, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800

² Graduate School of the Chinese Academy of Sciences, Beijing 100049

³ College of Information Science and Engineering, Ningbo University, Ningbo 315211

160.4670 optical materials 160.5690 rare earth doped materials 300.6280 spectroscopy fluorescence and luminescence 160.2750 glass and other amorphous materials

Abstract

Optically transparent Er3+-doped tellurite-based nanocrystallized glasses with the composition of 70TeO2-15Li2O-15Nb2O5-0.5Er2O3 (mol) have been prepared by a conventional melting quenching and the subsequent heat treatment processes. The sizes of grown nanocrystals in glass matrix appear to be 35-50 nm from the X-ray diffraction (XRD) measurement. The microhardness measurement shows that the Vickers hardness values of the nanocrystallized tellurite glasses are larger (33%-62%) than those in the base glass. The Raman spectra imply that the maximum phonon energy of the based glass decreases and shifts from 668 to 638 /cm after heat-treatment. Visible upconversion luminescence and infrared luminescence of the base glass and heat-treated glasses under 980-nm laser diode (LD) excitation are investigated. The 524-, 546- and 656-nm upconversion intensities by 980-nm pumping increase significantly.

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Gang Zhou, Shixun Dai, Chunlei Yu, Junjie Zhang, Guonian Wang, Lei Wen, Zhonghong Jiang. Enhancement of upconversion luminescence due to the formation of nanocrystals in Er3+-doped tellurite glasses[J]. Chinese Optics Letters, 2006, 4(1): 0136.

Enhancement of upconversion luminescence due to the formation of nanocrystals in Er3+-doped tellurite glasses Download： 666次

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