Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-28T17:14:57.287Z Has data issue: false hasContentIssue false
  • English
  • Français

Upconversion luminescence properties of monodisperse spherical Y2O2S:Yb,Ho nanocrystals

Published online by Cambridge University Press:  31 January 2011

Xixian Luo ,
Wanghe Cao  and
Mingming Xing
Xixian Luo*
Affiliation:
Physics Department, Dalian Maritime University, Dalian, Liaoning 116026, People's Republic of China
Mingming Xing
Affiliation:
Physics Department, Dalian Maritime University, Dalian, Liaoning 116026, People's Republic of China
*
a) Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

Monodisperse spherical Y2O2S:Yb,Ho nanocrystals with particle size about 50 nm were prepared by a modified homogeneous precipitation method combined with low-temperature sulfurization process. The Y2O2S:Yb,Ho nanocrystals exhibit an intense green emission assigned to the Ho3+ ions 5F4, 5S2 → 4I15/2 transition under 980 nm infrared pump. The upconversion luminescence brightness of Y2O2S:Yb,Ho is 526 Cd/m2 under 4.63 W/cm2 pump density, indicating that the as-prepared Y2O2S:Yb,Ho nanocrystals can meet the requirement of in vivo imaging. The formation mechanism of monodisperse spherical oxysulfide nanoparticles is also discussed.

Keywords

Grain sizeLuminescence
Type
Articles
Information
Journal of Materials Research , Volume 24 , Issue 5 , May 2009 , pp. 1756 - 1760
Copyright
Copyright © Materials Research Society 2009

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Capobianco, J.A., Boyer, J.C., Vetrone, F., Speghini, A., and Bettinelli, M.: Studies of Ho3+-doped bulk and nanocrystalline Y2O3. Chem. Mater. 14, 2915 (2002).CrossRefGoogle Scholar
2.Yi, G.S. and Chow, G.M.: Synthesis of hexagonal-phase NaYF4: Yb,Er and NaYF4:Yb,Tm nanocrystals with efficient up-conversion fluorescence. Adv. Fund. Mater. 16, 2324 (2006).CrossRefGoogle Scholar
3.Heer, S., Kömpe, K., Güdel, H.U., and Haase, M.: Highly efficient multicolour upconversion emission in transparent colloids of lan-thanide-doped NaYF4 nanocrystals. Adv. Mater. 16, 2102 (2004).CrossRefGoogle Scholar
4.Chatterjee, D.K., Rufaihah, A.J., and Zhang, Y.: Upconversion fluorescence imaging of cells and small animals using lanthanide doped nanocrystals. Biomater. 29, 937 (2008).CrossRefGoogle ScholarPubMed
5.Wang, L.Y., Yan, R.X., Huo, Z.Y., Wang, L., Zeng, J.H., Bao, J., Wang, X., Peng, Q., and Li, Y.D.: Fluorescence resonant energy transfer biosensor based on upconversion-luminescent nanoparti-cles. Angew. Chem. Int. Ed. 45, 6054 (2005).CrossRefGoogle Scholar
6.Page, R.H., Schaffers, K.I., Waide, P.A., Tassano, J.B., Payne, S.A., and Krupke, W.F.: Upconversion-pumped luminescence efficiency of rare-earth-doped hosts sensitized with trivalent ytterbium. J. Opt. Soc. Am. B 15, 996 (1998).CrossRefGoogle Scholar
7.Luo, X.X. and Cao, W.H.: Blue, green, red upconversion luminescence and optical characteristics of rare earth doped rare earth oxide and oxysulfide. Sci. China Ser. B 50, 505 (2007).CrossRefGoogle Scholar
8.Luo, X.X. and Cao, W.H.: Upconversion luminescence of holmium and ytterbium codoped yttrium oxysulfide phosphor. Mater. Lett. 61, 3696 (2007).CrossRefGoogle Scholar
9.Lim, S.F., Riehn, R., Ryu, W.S., Khanarian, N., Tung, C.K., Tank, D., and Austin, R.H.: In vivo and scanning electron microscopy imaging of upconverting nanophosphors in caenorhabditis elegans. Nano Lett. 6, 169 (2006).CrossRefGoogle ScholarPubMed
10.Hirai, T. and Orikoshi, T.: Preparation of yttrium oxysulfide phosphor nanoparticles with infrared-to-green and -blue upconversion emission using an emulsion liquid membrane system. J. Colloid Interface Sci. 273, 470 (2004).CrossRefGoogle ScholarPubMed
11.Yu, S-H., Han, Z-H., Yang, J., Zhao, H-Q., Yang, R-Y., Xie, Y., Qian, Y-T., and Zhang, Y-H.: Synthesis and formation mechanism of La2O2S via a novel solvothermal pressure-relief process. Chem. Mater. 11, 192 (1999).CrossRefGoogle Scholar
12.Banga, J., Abboudib, M., and Abramsa, B.: Combustion synthesis of Eu-, Tb- and Tm- doped Ln2O2S (Ln = Y, La, Gd) phosphors. J. Lumin. 106, 177 (2004).CrossRefGoogle Scholar
13.Peng, H.S., Huang, S.H., You, F.T., Chang, J.J., Lu, S.Z., and Cao, L.: Preparation and surface effect analysis of trivalent europium-doped nanocrystalline La2O2S. J. Phys. Chem. B 109, 5774 (2005).CrossRefGoogle ScholarPubMed
14.Luo, X.X. and Cao, W.H.: Ethanol-assistant solution combustion method to prepare La2O2S:Yb,Pr nanometer phosphor. J. Alloys Compd. 460, 529 (2008).CrossRefGoogle Scholar
15.da Vila, L.D., Stucci, E.B., and Davolos, M.R.: Preparation and characterization of uniform, spherical particles of Y2O2S and Y2O2S:Eu. J. Mater. Chem. 7, 2113 (1997).CrossRefGoogle Scholar
16.Li, S., Feindt, H., Giannaras, G., Scarpino, R., Salamone, S., and Niedbala, R.S.: Preparation, characterization, and fabrication of uniform coated Y2O2S:RE3+ up-converting phosphor particles for biological detection applications. Proc. SPIE 4809, 100 (2002).CrossRefGoogle Scholar
17.Piresa, A.M., Serraa, O.A., and Davolos, M.R.: Yttrium oxysulfide nanosized spherical particles doped with Yb and Er or Yb and Tm: Efficient materials for up-converting phosphor technology field. J. Alloys Compd. 374, 181 (2004).CrossRefGoogle Scholar
18.Piresa, A.M., Serraa, O.A., and Davolos, M.R.: Morphological and luminescent studies on nanosized Er, Yb-yttrium oxide up-con-verter prepared from different precursors. J. Lumin. 113, 174 (2005).CrossRefGoogle Scholar
19.Matijević, E. and Hsu, W.P.: Preparation and properties of mono-dispersed colloidal particles of lanthanide compounds, I. Gadolinium, europium, terbium, samarium, and cerium(III). J. Colloid Interface Sci. 118, 506 (1987).CrossRefGoogle Scholar
20.Sordelet, D. and Akinc, M.: Preparation of spherical, monosized Y2O3 precursor particles. J. Colloid Interface Sci. 122, 47 (1988).CrossRefGoogle Scholar
21.Cullity, B.D.: Elements of X-ray Diffraction (Addison-Wesley, Reading, MA, 1978).Google Scholar
22.Igarashi, T., Ihara, M., Kusunoki, T., Ohno, K., Isobe, T., and Senna, M.: Relationship between optical properties and crystallin-ity of nanometer Y2O3:Eu phosphor. Appl. Phys. Lett. 76, 1549 (2000).CrossRefGoogle Scholar
23.Traina, C.A. and Schwartz, J.: Surface modification of Y2O3 nanoparticles. Langmuir 23, 9158 (2007).CrossRefGoogle ScholarPubMed