Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-23T09:03:55.018Z Has data issue: false hasContentIssue false
  • English
  • Français

The Effect of Boron on Processing and Phosphorescence Behavior of SrAl4O7 (SA2) Co-doped with Eu2+ and Dy3+

Published online by Cambridge University Press:  08 April 2011

Murat G. Eskin ,
Hasan Kurt ,
Mehmet Ali Gulgun  and
Cleva W. Ow-Yang
Murat G. Eskin
Affiliation:
Faculty of Engineering and Natural Sciences, Sabanci University, Orhanli, Tuzla, Istanbul, 34956, TURKEY.
Hasan Kurt
Affiliation:
Faculty of Engineering and Natural Sciences, Sabanci University, Orhanli, Tuzla, Istanbul, 34956, TURKEY.
Mehmet Ali Gulgun
Affiliation:
Faculty of Engineering and Natural Sciences, Sabanci University, Orhanli, Tuzla, Istanbul, 34956, TURKEY.
Cleva W. Ow-Yang
Affiliation:
Faculty of Engineering and Natural Sciences, Sabanci University, Orhanli, Tuzla, Istanbul, 34956, TURKEY.
Get access

Abstract

SrAl4O7 (SA2) phosphor powders were synthesized by using a modified Pechini process. Varying amounts of boron was incorporated into the SA2 lattice to investigate the effects on crystal structure and optical properties. X-ray spectra showed that boron addition enhances phase purity of the powder at a calcination temperature of 1000 °C, whereas the formation of a new S4A7 phase was induced when a calcination temperature of 1100 °C was used. The afterglow duration was extended to longer than 5 hours when boron was present in 4-11 mol%. To elucidate the enhanced optical properties, interband trap characteristics were studied by thermoluminescence and photoluminescence.

Keywords

Bluminescencex-ray diffraction (XRD)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1309: Symposium EE – Solid-State Chemistry of Inorganic Materials VIII , 2011 , mrsf10-1309-ee03-28
Copyright
Copyright © Materials Research Society 2011

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. Nemoto & Co., Ltd. Long Afterglow Phosphorescent pigment LumiNova. Retrieved December 12, 2010 from http://www.nemoto.co.jp/en/products/luminova/goods.html.Google Scholar
2. Nag, A. and Kutty, T.R.N., J. Alloy Compd. 354, 221 (2003).Google Scholar
3. Uluc, A.V., Synthesis and Characterization of Phosphorescent Strontium Aluminate Compounds, Masters Thesis, Sabanci University, (2008).Google Scholar
4. Ye, X., Zhuang, W., Wang, J., Yuan, W. and Qiao, Z., J. Phase Equilib. Diffus., 28, 362 (2007).10.1007/s11669-007-9086-xGoogle Scholar
5. Chen, R., J. Appl. Phys., 40, 570 (1969).10.1063/1.1657437Google Scholar
6. Chen, R., J. Mater. Sci., 11, 1521 (1976).10.1007/BF00540887Google Scholar
7. Shannon, R. D., Acta Crystallogr.. A32, 751 (1976).Google Scholar
8. Computer Program FindIt Version 1.7.1 (Fachinformationszentrum Karlsruhe, Germany, and the U.S. Department of Commerce, 2010).Google Scholar