KLa(MoO4)2∶Yb3+,Ho3+,Tm3+白光荧光粉的制备及性能研究

张玉红; 何蕙羽; 刘航; 吴芳; 王勃

doi:doi:10.3788/fgxb20173811.1469

发光学报, 2017, 38 (11): 1469, 网络出版: 2017-12-25

KLa(MoO₄)₂∶Yb³⁺,Ho³⁺,Tm³⁺白光荧光粉的制备及性能研究

Preparation and Properties of KLa(MoO₄)₂∶Yb³⁺,Ho³⁺,Tm³⁺ White Phosphors

论文大纲

张玉红 ^*何蕙羽刘航吴芳王勃

作者单位

吉林建筑大学电气与计算机学院, 吉林长春 130118

白光LED 上转换荧光粉稀土 white-LED upconversion phosphor rare earths

摘要

采用水热法成功制备了Yb3+,Ho3+,Tm3+三掺的多晶KLa(MoO4)2荧光粉。在980 nm激光激发下, KLa(MoO4)2∶Yb3+,Ho3+,Tm3+发出裸眼可见的明亮白光, 这其中包括Tm3+离子发出的蓝光(～475 nm)、Ho3+离子发出的绿光(～540 nm)和红光(～651 nm)。根据色度坐标系计算得出的坐标点可以看出, 随着Ho3+/Tm3+掺杂浓度之比的增加, KLa(MoO4)2∶Yb3+,Ho3+,Tm3+所发出的白光呈现从冷白光到暖白光的变化。最后详细讨论了KLa(MoO4)2∶Yb3+,Ho3+,Tm3+荧光粉可能的发光机制。

Abstract

The polycrystalline KLa(MoO4)2∶Yb3+,Ho3+,Tm3+ phosphors were synthesized by the simple hydrothermal method. Under the excitation of 980 nm laser, KLa(MoO4)2∶Yb3+,Ho3+,Tm3+ phosphors show bright white upconversion emission visible to the naked eyes, which composes of blue emission at ～475 nm from Tm3+, green and red emission at ～540 nm and ～651 nm from Ho3+. The experiment results show that the coordinates of KLa(MoO4)2∶Yb3+,Ho3+,Tm3+ in the commission international CIE chromaticity diagram can be controlled from cool to warm white color depending on the rate of Ho3+/Tm3+ concentrations.

参考文献

[1] HU Y, ZHUANG W, YE H, et al.. A novel red phosphor for white light emitting diodes ［J］. J. Alloys Compd., 2005,390(1-2):226-229.

[2] 庄四祥, 钱可元, 李旭亮, 等. 白光LED对直下式TV背光色域的影响［J］. 液晶与显示, 2011, 26(4):474-479.

ZHUANG S X, QIAN K Y, LI X L, et al.. Effect of white LEDs on gamut of TV with direct illumination-type LED backlight ［J］. Chin. J. Liq. Cryst. Disp., 2011, 26(4):474-479. (in Chinese)

[3] WANG J, TANNER P A. Up-conversion for white light generation by a single compound ［J］. J. Am. Chem. Soc., 2010, 132(3):947.

[4] MEI Y, YOU H, JIA Y, et al.. Synthesis and luminescent properties of NaLa(MoO4)2∶Eu3+ shuttle-like nanorods composed of nanoparticles ［J］. Cryst Eng. Comm., 2011, 13(12):4046-4052.

[5] WANG F, FAN X P, PI D B, et al.. Hydrothermal synthesis and luminiescence behavior of rare-earth-doped NaLa-(WO4)2 powders ［J］. J. Sol. State Chem., 2005, 178(3):825-830.

[6] WANG Z, LIANG H, ZHOU L, et al.. Luminescence of (Li0.333Na0.334K0.333)Eu(MoO4)2, and its application in near UV InGaN-based light-emitting diode ［J］. Chem. Phys. Lett., 2005, 412(4-6):313-316.

[7] ETCHART I, HERNANDEZ I, HUIGNARD A, et al.. Efficient oxide phosphors for light up-conversion; green emission from Yb3+ and Ho3+ co-doped Ln2BaZnO5(Ln=Y, Gd) ［J］. J. Mater. Chem., 2010, 21(5):1387-1394.

[8] 冯治刚, 夏海平, 王成, 等. Ho3+/Tm3+共掺α-NaYF4单晶体的光谱特性［J］. 光子学报, 2016, 45(5): 0516005.

FENG Z G, XIA H P, WANG C, et al.. Spectral properties of Ho3+/Tm3+ co-doped α-NaYF4 single crystals ［J］. Acta Photon. Sinica, 2016, 45(5):0516005. (in Chinese)

[9] LIU M, WANG S W, ZHANG J, et al.. Up-conversion luminescence of Y3Al5O12(YAG)∶Yb3+, Tm3+ nanocrystals ［J］. Opt. Mater., 2007, 30(3):370-374.

[10] 李香萍, 佟莉莉, 程丽红, 等. Tm3+浓度对Y2(MoO4)3∶Tm3+,Yb3+荧光粉上转换发光性质的影响［J］. 发光学报, 2014, 35(8):905-910.

LI X P, TONG L L, CHENG L H, et al.. Effect of Tm3+ concentration on up-conversion fluorescence in Y2(MoO4)3∶Tm3+,Yb3+ phosphors ［J］. Chin. J. Lumin., 2014, 35(8):905-910. (in Chinese)

[11] GLASPELL G, ANDERSON J, WILKINS J R, et al.. Vapor phase synthesis of upconverting Y2O3 nanocrystals doped with Yb3+, Er3+, Ho3+, and Tm3+ to generatered, green, blue, and white light ［J］. J. Phys. Chem. C, 2008, 122:11527-11531.

[12] SESHADRI M, BARBOSA L C, CORDEIRO C M B, et al.. Study of optical absorption, visible emission and NIR-Vis luminescence spectra of Tm3+/Yb3+, Ho3+/Yb3+ and Tm3+/Ho3+/Yb3+doped tellurite glasses ［J］. J. Lumin., 2015, 166:8-16.

[13] MIAO J H, WEN Y, WANG W, et al.. Preparation and up-conversion luminescence of YVO4∶Yb3+, Ln3+(Ln=Er, Tm, Ho) microrods ［J］. J. Mater Sci.: Mater Electron., 2015, 26:6178-6181.

[14] XU H Z, XU K, LU A, et al.. Microwave hydrothermal synthesis and white up-conversion emission of NaGd(WO4)2∶(Yb3+/Tm3+/Ho3+) phosphors ［J］. J. Mater. Sci.: Mater. Electron., 2015, 26:3921-3925.

[15] JIN J J, YANG K S, SU J Y, et al.. White up-conversion emission in Ba(MoO4)0.5(WO4)0.5∶Yb3+,Ho3+,Tm3+ nano-phosphor ［J］. J. Lumin., 2015, 159:178-182.

[16] SIVAKUMAR S, VAN VEGGEL F X J M, RAUDSEPP M. Bright white light through up-conversion of a single NIR source from sol-gel-derived thin film made with Ln-doped LaF nanoparticles ［J］. J. Am. Chem. Soc., 2005, 127:12464-12465.

[17] MACALIK L. Comparison of the spectroscopic and crystallographic data of Tm3+ in the different hosts: KLn(MO4)2 where Ln=Y, La, Lu and M=Mo, W ［J］. J. Alloys Compd., 2002, 341(1-2):226-232.

[18] WEI Y W, CHEN Y J, LIN Y F, et al.. Spectral properties of Tm3+ doped LiLa(MoO4)2 crystal ［J］. J. Alloys Compd., 2009, 484(1-2):529-534.

张玉红, 何蕙羽, 刘航, 吴芳, 王勃. KLa(MoO₄)₂∶Yb³⁺,Ho³⁺,Tm³⁺白光荧光粉的制备及性能研究[J]. 发光学报, 2017, 38(11): 1469. ZHANG Yu-hong, HE Hui-yu, LIU Hang, WU Fang, WANG Bo. Preparation and Properties of KLa(MoO₄)₂∶Yb³⁺,Ho³⁺,Tm³⁺ White Phosphors[J]. Chinese Journal of Luminescence, 2017, 38(11): 1469.

KLa(MoO₄)₂∶Yb³⁺,Ho³⁺,Tm³⁺白光荧光粉的制备及性能研究

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