浏览全部资源
扫码关注微信
SiO2 包覆Y2O3 ∶ Er3+纳米粉的制备及发光性能
Synthesis and Luminescent Properties of Y2O3 ∶ Er3+ Nanometer Powder Coated with SiO2
- 发光学报 2011年32卷第4期 页码：342-346
- 作者机构：
1. 稀土冶金及功能材料国家工程研究中心, 内蒙古 包头 014010
2. 哈尔滨工业大学 材料物理与化学系,黑龙江 哈尔滨,150000
3. 包头稀土研究院, 内蒙古 包头 014010
- 作者简介：
- 基金信息：内蒙古自然科学基金(2009MS0803)();科研院所技术开发专项资金(2010EG113041)资助()
DOI：10.3788/fgxb20113204.0342
中图分类号： O482.31收稿日期：2010-10-30，
修回日期：2010-12-21，
网络出版日期：2011-04-22，
纸质出版日期：2011-04-22
- 稿件说明：
移动端阅览
王忠志, 申孟林, 沈雷军, 陈向群, 李波, 高乐乐, 周永勃. SiO<sub>2</sub> 包覆Y<sub>2</sub>O<sub>3</sub> ∶ Er<sup>3+</sup>纳米粉的制备及发光性能[J]. 发光学报, 2011,32(4): 342-346
WANG Zhong-zhi, SHEN Meng-lin, SHEN Lei-jun, CHEN Xiang-qun, LI Bo, GAO Le-le, ZHOU Yong-bo. Synthesis and Luminescent Properties of Y<sub>2</sub>O<sub>3</sub> ∶ Er<sup>3+</sup> Nanometer Powder Coated with SiO<sub>2</sub>[J]. Chinese Journal of Luminescence, 2011,32(4): 342-346
王忠志, 申孟林, 沈雷军, 陈向群, 李波, 高乐乐, 周永勃. SiO<sub>2</sub> 包覆Y<sub>2</sub>O<sub>3</sub> ∶ Er<sup>3+</sup>纳米粉的制备及发光性能[J]. 发光学报, 2011,32(4): 342-346 DOI： 10.3788/fgxb20113204.0342.
WANG Zhong-zhi, SHEN Meng-lin, SHEN Lei-jun, CHEN Xiang-qun, LI Bo, GAO Le-le, ZHOU Yong-bo. Synthesis and Luminescent Properties of Y<sub>2</sub>O<sub>3</sub> ∶ Er<sup>3+</sup> Nanometer Powder Coated with SiO<sub>2</sub>[J]. Chinese Journal of Luminescence, 2011,32(4): 342-346 DOI： 10.3788/fgxb20113204.0342.
摘要
用微乳液法合成出SiO
2
包覆的Er
3+
掺杂的Y
2
O
3
粉体。X射线衍射结果表明
所制备粉体为立方Y
2
O
3
结构。透射电镜照片显示
其颗粒形状近似为球形
粒径为20~50 nm。该粉体在波长为980 nm的半导体激光器激发下发射出中心波长为562 nm的绿色和660 nm的红色上转换荧光
分别对应于Er
3+
离子的
4
S
3/2
/
2
H
11/2
4
I
15/2
跃迁和
4
F
9/2
4
I
15/2
跃迁
发光强度和激发功率的关系揭示其均为双光子过程。Er
3+
掺杂的Y
2
O
3
粉体具有高效的上转换发光性能
而经过纳米复合后制成的Y
2
O
3
(核)/SiO
2
(壳)在水溶液中具有较好的悬浮性
这对于其在生物荧光标记的应用具有重要意义。
Abstract
The Y
2
O
3
∶ Er
3+
nanometer phosphors coated with SiO
2
was synthesized by the microemulsion method. The X-ray diffraction results showed that the as-prepared powders were cubic phase of Y
2
O
3
. The TEM pictures demonstrated that the powders have the nearly spherical and the average diameter of the particles was in the range of 60~80 nm. Under the excitation of 980 nm diode laser
a very strong green emission centered at 562 nm and a red emission centered at 660 nm were observed
which were assigned to the transitions of
4
S
3/2
/
2
H
11/2
4
I
15/2
and
4
F
9/2
4
I
15/2
energy levels of Er
3+
ions
respectively. The research on luminescent intensity and the exciting power relations revealed that this up-conversion process was a two-photons absorption process. Because Y
2
O
3
(nucleus)/SiO
2
(shell) has highly effective performance on the up-conversion luminescence and was easy to dissolve in the water and united with organic matter and biological member
the application of this nanometer nuclear-shell structure material in the biological fluorescence mark domain is significance.
关键词
Keywords
references
Kapoor R, Friend C S, Biswas A. Highly efficient infrared-to-visible energy up-conversion in Er3+ ∶ Y2O3 [J]. Opt. Lett., 2000, 25 (5):338-340.[2] Cheng Lihong, Cao Wanghe, Xia Tian. Up-conversion luminescence of fluo-oxide glass co-doped with Er3+ and Yb3+ under 980 nm excitation [J]. Chin. J. Lumin. (发光学报), 2004, 25 (4):355-358 (in Chinese).[3] Chen G Y, Liu Y, Zhang Y G, et al. Bright white up-conversion luminescence in rare-earth-ion-doped Y2O3 nanocrystals [J]. Appl. Phys. Lett., 2007, 91 (13):133103-1-3.[4] Wang L Y, Li Y D. Na(Y1.5Na0.5)F6 single-crystal nanorods as multicolor luminescent materials [J]. Nano Lett., 2006, 6 (8):164-168.[5] Hirai T, Orikoshi T. Preparation of Gd2O3 ∶ Yb,Er and Gd2O2S ∶ Yb,Er infrared-to-visible conversion phosphor ultrafine particles using an emulsion liquid membrane system [J]. J. Colloid Interface Science, 2004, 269 (1):103-108.[6] Chen Xueyuan, Ma En, Liu Guokui, et al. Excited-state dynamics of Er3+ in Gd2O3 nanocrystals [J]. J. Phys. Chem. C, 2007, 111 (27):9638-9643.[7] Sun Jiayue, Yang Zhiping, Du Haiyan. Upconversion luminescence properties of NaYF4 ∶ Tm3+,Yb3+ synthesized by co-precipitation method [J]. Chin. J. Lumin. (发光学报), 2009, 30 (2):195-200 (in Chinese).[8] Zhang Ming, Yu Hua, Zhang Minghao, et al. Mechanics of upconversion luminescence in glass and glass ceramics co-doped with Tm3+/Yb3+ [J]. Chin. J. Lumin. (发光学报), 2009, 30 (3):304-308 (in Chinese).[9] Ren Qi, Dai Ruchen, Shen Yuhua, et al. Color design based on upconversion luminescence of NaYF4 ∶ Yb3+ , Er3+[J]. Chin. J. Lumin. (发光学报), 2010, 31 (1):69-74 (in Chinese).[10] Chen Xueyuan, Ma En, Liu Guokui. Energy levels and optical spectroscopy of Er3+ in Gd2O3 nanocrystals [J]. J. Phys. Chem. C, 2007, 111 (28):10404-10411.[11] Silversmith A J, Lenth W, Macfarlane R M. Green infrared-pumped erbium up-conversion laser [J]. Appl. Phys. Lett., 1987, 51 (24):1977-1979.[12] Yi G S, Sun B Q, Yang F Z. Synthesis and characterization of highly-efficiency nanocrystal up-conversion phosphors: ytterbium and erbium codoped lanthanum molybdate [J]. Chem. Mater., 2002, 14 (7):2910-2914.[13] Matsuura D. Red, green, blue up-conversion luminescence of trivalent-rare-earth ion-doped Y2O3 nanocrystals [J]. Appl.Phys. Lett., 2002, 81 (24):4526-4528.
0
浏览量
54
下载量
3
CSCD
- 网络PDF下载
- Meta-XML下载
- BibTeX下载
- Endnote下载
- RefMan 下载
- NoteExpress下载
- NoteFirst下载
关联资源
相关文章
相关作者
相关机构
AI问答- 地址：长春市经济技术开发区东南湖大路3888号 邮编：130033
- 联系电话：0431-86176862 Email：fgxbt@126.com
- 本系统由Light学术出版中心、北京北大方正电子有限公司共建 吉ICP备11002662号-17
京公网安备11010802024621 - 本系统建议在Chrome、 IE9+ 以上版本浏览器阅读本站内容，360浏览器请切换至极速模式
- Cookies帮助我们提供服务并提供个性化体验。使用本网站，即表示您同意我们使用Cookies
