首页 > 论文 > 发光学报 > 34卷 > 9期(pp:1183-1187)

CdWO4∶Yb3+ ,Ho3+纳米晶的制备及发光性能研究

Preparation and Luminescence Properties of CdWO4∶Yb3+ ,Ho3+ Nano-crystals

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
  • PDF全文
分享:

摘要

采用水热法制备CdWO4 ∶Yb3+ ,Ho3+纳米晶, 运用X射线衍射、扫描电镜和光谱分析对制备样品的结构和发光性能进行了表征。结果表明: CdWO4 ∶Yb3+ ,Ho3+为单斜晶系, 平均晶粒尺寸约为29.782 7 nm。用980 nm激光激发样品获得了发射光谱, 位于552 nm和659 nm的发射峰分别对应于Ho3+离子的5F45S2→5I8和5F5→5I8的跃迁。根据泵浦功率和发光强度之间的双对数关系可知, 552 nm和659 nm的发射均属于双光子过程。稀土离子的浓度对样品的发光强度的影响较大, 结果表明:当Yb3+∶Ho3+离子的量比为5∶1且Ho3+摩尔分数为1.5%时, CdWO4 ∶Yb3+ , Ho3+纳米晶的上转换发光强度最大。

Abstract

Yb3+, Ho3+ ions co-doped CdWO4 nano-crystals were synthesized by hydrothermal method. The characterization and structure of the samples were measured by X-ray powder diffractions (XRD), field emission scanning electron microscope (ESEM) and fluorescence spectrophotometer. The results show that CdWO4∶Yb3+, Ho3+ is monoclinic crystal system with the mean size of 29.782 7 nm. The emission spectra were obtained when the samples were excited by 980 nm semi-conductor laser. The green (552 nm) and red (659 nm) emission peaks are obviously observed, which are corresponding to the 5F45S2→5I8 and 5F5→5I8 transitions of Ho3+ ions. According to the relationship between pump power and luminescence intensity, the green and red peaks can be due to the double-photons absorption processes. The concentration of the rare earths could influence the luminescence intensity. The strongest peak was obtained when the mole fraction of Ho3+ is 1.5% and the ratio of n(Yb3+)∶n(Ho3+)=5∶1.

Newport宣传-MKS新实验室计划
补充资料

中图分类号:O482.31

DOI:10.3788/fgxb20133409.1183

所属栏目:材料合成及性能

基金项目:国家自然科学基金重点项目(20901011); 长春市科技局科技计划(20091510)资助项目

收稿日期:2013-06-12

修改稿日期:2013-07-11

网络出版日期:--

作者单位    点击查看

韩松:长春理工大学 材料科学与工程学院, 吉林 长春130022
宋博:长春理工大学 材料科学与工程学院, 吉林 长春130022
刘磊:长春理工大学 材料科学与工程学院, 吉林 长春130022
贺超:长春理工大学 材料科学与工程学院, 吉林 长春130022
杨魁胜:长春理工大学 材料科学与工程学院, 吉林 长春130022

联系人作者:韩松(hansong522@163.com)

备注:韩松(1992-), 男, 江苏泰州人, 主要从事稀土发光材料的研究。

【1】Zhao Y L. Nature and application of nano-materials [J]. Coal Technology (煤炭技术), 2009, 28(8):149-151 (in Chinese).

【2】Zhu S D, Zhou G S, Cai R, et al. Research of the nano-materials at home and abroad Ⅰ-The structure, specific effects and performance of the nano-materials [J]. Heat Treatment Technology and Equipment (热处理技术与装备), 2010, 31(3):1-5 (in Chinese).

【3】Zheng H R, Gao D L, Gao W, et al. Controlling the fluorescence emission of rare earth doped nanocrystals [J]. Chin. J. Lumin.(发光学报), 2012, 33(2):115-121 (in Chinese).

【4】Cao J, Zhang X, Hao Z D, et al. NaGdF4∶Yb3+,Ho3+ and GdF3∶Yb3+,Ho3+ nanocrystals:Controlled synthesis and morphology dependent upconversion luminescence [J]. Chin. J. Lumin.(发光学报), 2011, 32(12):1233-1237 (in Chinese).

【5】Wang Z. The competitive situation of rare earth luminescent materials industry in China [J]. Rare Earth Information (稀土信息), 2010, 7:20-23 (in Chinese).

【6】Zuo Z, Yang K S, Li H, et al. Preparation and upconversion luminescence property of NaGd(WO4)2∶Yb3+, Tm3+ powders [J]. J. Chin. Rare Earths Soc.(中国稀土学报), 2012, 30(1):73-77(in Chinese).

【7】Li H, Yong K S, Qi N, et al. Preparation and luminescence property of Yb3+ and Tm3+co-doped NaY(WO4)2 nanocrystals [J]. Chin. J. Inorg. Chem.(无机化学学报), 2012, 28(2):221-226 (in Chinese).

【8】Wu W, Zhang X L, Xuan Y W, et al. Synthesis and photoluminescent property of cadmium tungstate nanomaterials [J]. New Chem. Mater. (化工新型材料), 2012, 40(7):105-113 (in Chinese).

【9】Wang L,Yan R, Huo Z, et al. Fluorescence resonant energy transfer biosensor based on upconversion-luminescent nano-particles [J]. Angew. Chem. Int. Ed., 2005, 44(37):6054-6057.

【10】Zhang X H, Liu Z W, Xiao S G. Direct sensitization up-conversion mechanism from Yb3+ to Ho3+ and Tm3+ in fluoride [J]. Spectros. Spect. Anal.(光谱学与光谱分析), 2005, 25(5):660-664 (in Chinese).光谱学与光谱分析), 2005, 25(5):660-664 (in Chinese).

【11】Zou S Y, Xiao Q L, Deng X L, et al. Synthesis and upconversion luminescence of In2O3∶Ho3+, Yb3+ nanocrystals [J]. Chin. J. Lumin.(发光学报), 2011, 32(7):655-659 (in Chinese).

【12】Chen Y C, Zhang Y G. Surfactant-assisted synthesis of CdWO4 nanorods and nanowires [J]. Acta Chim. Sinica (化学学报), 2006, 64(13):1314-1318 (in Chinese).

引用该论文

HAN Song,SONG Bo,LIU Lei,HE Chao,YANG Kui-sheng. Preparation and Luminescence Properties of CdWO4∶Yb3+ ,Ho3+ Nano-crystals[J]. Chinese Journal of Luminescence, 2013, 34(9): 1183-1187

韩松,宋博,刘磊,贺超,杨魁胜. CdWO4∶Yb3+ ,Ho3+纳米晶的制备及发光性能研究[J]. 发光学报, 2013, 34(9): 1183-1187

被引情况

【1】周政,李金华,方芳,楚学影,方铉,魏志鹏,王晓华. 化学气相沉积法制备Zn2GeO4纳米线及其发光性质的研究. 中国光学, 2014, 7(2): 281-286

您的浏览器不支持PDF插件,请使用最新的(Chrome/Fire Fox等)浏览器.或者您还可以点击此处下载该论文PDF