Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-28T13:52:21.142Z Has data issue: false hasContentIssue false
  • English
  • Français

Nanocrystalline Eu3+ Doped M3Al2O6 (M: Ba, Ca and Sr) Red Phosphors Prepared by Sucrose-PVA-Metal Ion Complex Route

Published online by Cambridge University Press:  01 February 2011

Alp Manavbasi ,
Palkin Zed  and
Jeffrey C. LaCombe
Alp Manavbasi
Affiliation:
[email protected], University of Nevada, Reno, Materials Engineering, 1664 N Virginia St, Reno, NV, 89557, United States, 775-682-6885
Palkin Zed
Affiliation:
[email protected], University of Nevada, Reno, Chem. & Met. Engineering, Reno, NV, 89557, United States
Jeffrey C. LaCombe
Affiliation:
[email protected], University of Nevada, Reno, Chem. & Met. Engineering, Reno, NV, 89557, United States
Get access

Abstract

Nanocrystalline (<100 nm) red emitting Eu3+- doped M3Al2O6 (M = Ba, Ca and Sr) phosphors were prepared by an aqueous sucrose-PVA-metal ion complex route. The aqueous sucrose-PVA solution includes 20 mol% PVA, and the method is based on the dehydration of a transparent metal ion-sucrose-PVA solution to a highly viscous liquid and then precursor formation by heating at 250°C. The phase formation and the crystallite size measurements were made by x-ray diffraction techniques. Photon correlation analysis revealed that all synthesized phosphor particles range in size from 400 nm to a few microns. The photoluminescence (PL) and PL excitation characteristics have been investigated. All samples have broad CT bands centered at around 269 nm and only the Ca3Al2O6:Eu3+ exhibited the characteristic f-f transitions of Eu3+ ions mainly located at 396 and 465 nm in comparable levels with the CT band. The emission spectrum of Ca3Al2O6:Eu3+ is dominated by the red (5D0 ¡æ 7F2) transition band located at 614 nm, however the Eu3+ doped Sr3Al2O6 and Ba3Al2O6 phosphors have comparable emission intensity in the red (5D0 ¡æ 7F2 ) and orange (5D0 ¡æ 7F1 ) transition bands. The highest intensity of the red emission was obtained when the Ca3Al2O6:Eu3+ phosphor was excited at 396 nm.

Keywords

luminescenceoptical propertieschemical synthesis
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1023: Symposium JJ – Functional Nanoscale Ceramics for Energy Systems , 2007 , 1023-JJ05-08
Copyright
Copyright © Materials Research Society 2007

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. Rani, G.N., Ayachit, N.H., Nath, K.R., and Rao, V.J., Spect. Acta A 60 (2004) 2481.Google Scholar
2. Das, R.N., Mater. Lett. 47, (2001) 344.Google Scholar
3. Smets, B., Rutten, J., and Hoeks, G., J. Electrochem. Soc. 136 (7), (1989) 2119.Google Scholar
4. Jia, W., Yuan, H., Holmstrom, S., Liu, H., and Yen, W.M., J. Lumin. 83, (1999) 735.Google Scholar
5. Mondal, P. and Jeffery, J.W., Acta. Cryst. B 31, (1975) 689.Google Scholar
6. Akiyama, M., Xu, C., Nonaka, K., and Watanabe, T., Appl. Phys. Lett. 73, (1998) 3046.Google Scholar
7. Pan, Y., Sung, H.H.Y., Wu, H., Wang, J. et al. , Mater. Res. Bull. 41, (2006) 225.Google Scholar
8. Song, Y.K., Choi, S.K., Moon, H.S. et al. , Mater. Res. Bull. 32, (1997) 337.Google Scholar
9. Walrand, C.G., Huygen, E., Binnemans, K., and Fluyt, L., J. Phys.: Cond. Mat. 6, (1994) 7797.Google Scholar
10. Konningstein, J.A., Phys. Rev. A 136 (3), (1964) A717.Google Scholar
11. Igarashi, T., Ihara, M., Kusunoki, T., Ohno, K., Isobe, T., and Senna, M., Appl. Phys. Lett. 76, (2000) 1549.Google Scholar
12. Pei, Z., Su, Q., and Li, S., J. Lumin. 50, (1991) 123.Google Scholar
13. Shannon, R.D., Acta Cryst. A 32, (1976) 751.Google Scholar
14. Bae, J.S., Yi, S.S., and Kim, J.H., J. Appl. Phys. 98, (2005) 043513.Google Scholar
15. Zhou, L., Shi, J., and Gong, M., J. Lumin., 113, (2005) 285 Google Scholar
16. Nakamura, S. and Fasol, G., “The blue laser diode: GaN based light emitters and lasers” (Springer, NY, 1997).Google Scholar
17. Battisha, I.K., Speghini, A., Polizzi, S. et al. , Mater. Lett. 57, (2002) 183.Google Scholar