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

  • Alp Manavbasi (a1), Palkin Zed (a2) and Jeffrey C. LaCombe (a3)

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.

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

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

  • Alp Manavbasi (a1), Palkin Zed (a2) and Jeffrey C. LaCombe (a3)

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