Hostname: page-component-8448b6f56d-jr42d Total loading time: 0 Render date: 2024-04-24T23:34:26.617Z Has data issue: false hasContentIssue false
  • English
  • Français

Core/Shell Composite of Self-Assembled Hierarchical Bismuth Oxide/Europium Doped Gadolinium Oxide for Scintillating Detection

Published online by Cambridge University Press:  31 January 2011

Teng-Kuan Tseng ,
Jihun Choi ,
Mark Davidson  and
Paul H Holloway
Teng-Kuan Tseng
Affiliation:
tengkuan.uf@gmail.com, University of Florida, Departement of Materials Science and Engineering, 100 Rhines Hall, P.O. Box 116400, University of Florida,Departement of Materials Science and Engineering,, Gainesville, Florida, 32611-6400, United States, (352)846-3332, (352)392-4911
Jihun Choi
Affiliation:
soulove2@ufl.edu, University of Florida, Department of Materials Science and Engineering, Gainesville, Florida, United States
Mark Davidson
Affiliation:
mark@microfab.ufl.edu, University of Florida, MICROFABRITECH, Gainesville, Florida, United States
Paul H Holloway
Affiliation:
pholl@mse.ufl.edu, University of Florida, Department of Materials Science and Engineering, Gainesville, Florida, United States
Get access

Abstract

A novel three dimensional (3D) self-assembled hierarchical bismuth oxide was prepared via a sol-gel synthesis with the aid of capping agent of polyethylene glycol-8000 (PEG-8000) at 85 ℃ in 45 min. The morphology evolution was studied versus reaction time and interpreted in terms of growth mechanisms. The as-grown 3D hierarchical flower-like bismuth oxide was crystalline cubic gamma-phase. The morphology and crystal phase of these 3D cubic gamma-phase bismuth oxide flowers were not changed with heating up to 600 ℃. The flower-like morphology was attributed to modification of the growth kinetics by the capping agent from the PEG-OH bond bridging with bismuth ions. Europium doped gadolinium oxide shell were further deposited on the bismuth oxide cores through sol-gel synthesis showing good photoluminescence characteristics at 610 and 622 nm under the excitation at 280 nm.

Keywords

sol-gelluminescenceself-assembly
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1207: Symposium N – Colloidal Nanoparticles for Electronic Applications — Light Emission, Detection, Photovoltaics and Transport , 2009 , 1207-N07-25
Copyright
Copyright © Materials Research Society 2010

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

1 Wang, F., Zhang, Y., Fan, X., and Wang, M., Nanotechnology 17, 1527–1532 (2006).Google Scholar
2 Bryan, D. R. G. J. Daniel, in Progress in Inorganic Chemistry, edited by Kenneth, D. K. (2005), p. 47–126.Google Scholar
3 Erwin, S. C., Zu, L., Haftel, M. I., Efros, A. L., Kennedy, T. A., and Norris, D. J., Nature 436, 91–94 (2005).Google Scholar
4 Sharma, P., Brown, S. C., Walter, G., Santra, S., Scott, E., Ichikawa, H., Fukumori, Y. and Moudgil, B. M., Adv. Powder Technol. 18, 663 (2007).Google Scholar
5 Jacobsohn, L., Blair, M. W., Tornga, S. C., Brown, L. O., Bennett, B. L. and Muenchausen, R. E., J. Appl. Phys. 104, 124303 (2008).Google Scholar
6 Greskovich, C. and Duclos, S., Annu. Rev. Mater. Sci. 27, 69 (1997).Google Scholar
7 Derenzo, S. E., Moses, W. W., Cahoon, J. L., Perera, R. C. C. and Litton, J. E., Nuclear Science, IEEE Transactions on 37, 203 (1990).Google Scholar
8 Gujar, T. P., Shinde, V. R., Lokhande, C. D., Mane, R. S. and Han, S-H, Applied Surface Science, 250, 161–167 (2005).Google Scholar
9 Wang, C., Shao, C., Wang, L., Zhang, L., Li, X. and Liu, Y., Journal of Colloid and Interface Science 333, 242–248 (2009).Google Scholar
10 Kim, H., Lee, J. and Shim, S., Sensors and Actuators B: Chemical, 126, 306–310 (2007).Google Scholar
11 Liu, J., Huang, X., Li, Y., Duan, J. and Ai, H., Materials Chemistry and Physics 98, 523–527 (2006).Google Scholar
12 Wang, W-W. and Zhu, Y-J., Chemistry Letters, 33, 988–989 (2004).Google Scholar
13 Sun, Y. and Xia, Y., Science 298, 2176–2179 (2002).Google Scholar