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1. 长春工业大学 化学工程学院, 吉林 长春 130012
2. 长春工业大学 材料科学高等研究院, 吉林 长春 130012
3. 长春工业大学 基础科学学院,吉林 长春,130012
纸质出版日期:2015-8-3,
收稿日期:2015-5-15,
修回日期:2015-6-10,
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张鹏, 李大光, 刘世虎等. Gd<sup>3+</sup>,Tm<sup>3+</sup>和Yb<sup>3+</sup>掺杂的Y<sub>2</sub>O<sub>3</sub>微晶中Gd<sup>3+</sup>离子的紫外上转换发光及其增强的研究[J]. 发光学报, 2015,36(8): 893-897
ZHANG Peng, LI Da-guang, LIU Shi-hu etc. UV Upconversion Luminescence of Gd<sup>3+</sup> in Yb/Tm/Gd Doped Y<sub>2</sub>O<sub>3</sub> Microcrystals[J]. Chinese Journal of Luminescence, 2015,36(8): 893-897
张鹏, 李大光, 刘世虎等. Gd<sup>3+</sup>,Tm<sup>3+</sup>和Yb<sup>3+</sup>掺杂的Y<sub>2</sub>O<sub>3</sub>微晶中Gd<sup>3+</sup>离子的紫外上转换发光及其增强的研究[J]. 发光学报, 2015,36(8): 893-897 DOI: 10.3788/fgxb20153608.0893.
ZHANG Peng, LI Da-guang, LIU Shi-hu etc. UV Upconversion Luminescence of Gd<sup>3+</sup> in Yb/Tm/Gd Doped Y<sub>2</sub>O<sub>3</sub> Microcrystals[J]. Chinese Journal of Luminescence, 2015,36(8): 893-897 DOI: 10.3788/fgxb20153608.0893.
采用均相沉淀法制备了Y(OH)
3
微米颗粒
经1 100 ℃焙烧后制备出具有上转换发光性质的Yb
3+
- Tm
3+
-Gd
3+
共掺的Y
2
O
3
微米晶体
讨论了Yb
3+
-Tm
3+
-Gd
3+
在Y
2
O
3
中能量传递过程及壳层对发光强度的影响.980 nm近红外光激发下的上转换光谱表明
在Yb
3+
-Tm
3+
-Gd
3+
共掺Y
2
O
3
体系中
核-壳结构大幅提高了Gd
3+
离子和Tm
3+
离子的上转换发光强度
尤其是样品在紫外发光部分的增强相比于可见和红外光部分更为明显.同时
通过研究Tm
3+
和Gd
3+
在不同波段的发光强度与泵浦功率的关系探讨了氧化物中上转换发光的机制.
Y
2
O
3
:Yb/Tm/Gd@Y
2
O
3
microcrystals with core-shell structure were prepared by homogeneous precipitation method and then annealed at high temperature. The microparticles were characterized by transmission electron microscopy (TEM)
X-ray diffraction (XRD)
and luminescent spectra. Upconversion spectra and excitation power dependence indicate that the energy transfer from Tm
3+
to Gd
3+
plays a crucial role in populating the excited states of Gd
3+
. The shortest wavelength of upconversion emissions in Y
2
O
3
matrix is converted from the infrared region. Meanwhile
the core-shell structure greatly improved the upconversion fluorescence intensity of Gd
3+
in Yb
3+
-Tm
3+
-Gd
3+
codoped system.
Y2O3Gd3+掺杂上转换发光
Y2O3Gd3+ dopingupconversion luminescence
Chen G Y, Liang H J, Liu H C, et al. Near vacuum ultraviolet luminescence of Gd3+ and Er3+ ions generated by super saturation upconversion processes [J]. Opt. Express, 2009, 17(19):16366-16371.
Gharavi A, RMcPherson G L. Ultraviolet emissions from Gd3+ ions excited by energy transfer from pairs of photoexcited Er3+ ions: Upconversion luminescence from CsMgCl3 crystals doped with Gd3+ and Er3+ [J]. J. Opt. Soc. Am., 1994, 11(5):913-918.
Mahalingam V, Naccache R, Vetrone F, et al. Sensitized Ce3+ and Gd3+ ultraviolet emissions by Tm3+ in colloidal LiYF4 nanocrystals [J]. Chem. Eur. J., 2009, 15(38):9660-9663.
Zheng K Z, Zhao D, Zhang D S, et al. Ultraviolet upconversion fluorescence of Er3+ induced by 1 560 nm laser excitation [J]. Opt. Lett., 2010, 35(14):2442-2444.
Wang G F, Qin W P, Zhang J S, et al. Controlled synthesis and luminescence properties from cubic to hexagonal NaYF4 : Ln3+(Ln=Eu and Yb/Tm) microcrystals [J]. J. Alloys Compd., 2009, 475(1-2):452-455.
Wang L, Li Y. Controlled synthesis and luminescence of lanthanide doped NaYF4 nanocrystals [J]. Chem. Mater., 2007, 19(4):727-734.
Qin W, Cao C, Wang L, et al. Ultraviolet upconversion fluorescence from 6DJ of Gd3+ induced by 980 nm excitation [J]. Opt. Lett., 2008, 33(19):2167-2169.
Zheng K, Qin W, Cao C, et al. NIR to VUV: Seven-photon upconversion emissions from Gd3+ ions in fluoride nanocrystals [J]. J. Phys. Chem. Lett., 2015, 6(3):556-560.
He X, Yang H. Fluorescence and room temperature activity of Y2O3 :(Eu3+,Au3+)/palygorskite nanocomposite [J]. Dalton T, 2015, 44(4):1673-1679.
Lv R, Yang P, He F, et al. Hollow structured Y2O3 :Yb/Er-CuxS nanospheres with controllable size for simultaneous chemo/photothermal therapy and bioimaging [J]. Chem. Mater., 2015, 27(2):483-496.
Xie W, Wang Y, Zou C, et al. A red-emitting long-afterglow phosphor of Eu3+, Ho3+ co-doped Y2O3 [J]. J. Alloys Compd., 2015, 619:244-247.
Yin D, Wang C, Ouyang J, et al. Synthesis of a novel core-shell nanocomposite Ag@SiO2@Lu2O3 :Gd/Yb/Er for large enhancing upconversion luminescence and bioimaging [J]. Acs Appl. Mater. Inter., 2014, 6(21):18480-18488.
Bai X, Song H W, Pan G H, et al. Improved upconversion luminescence properties of Gd2O3 :Er3+/Gd2O3 :Yb3+ core-shell nanorods [J]. J. Nanosci. Nanotechnol., 2009, 9(4):2677-2681.
De G, Qin W, Zhang J, et al. Effect of OH- on the upconversion luminescent efficiency of Y2O3 :Yb3+,Er3+ nanostructures [J]. Solid State Commun., 2006, 137(9):483-487.
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