Luminescence Properties of LnZr(BO3)2:Re (Ln=Ba, Sr; Re=Eu, Ce,Tb)

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The excitation spectrum of BaZr(BO3)2:Eu3+ is composed of two broad bands. One band in the range from 120 nm to 170 nm is attributed to the borate groups, and the other band at 230 nm is due to the charge-transfer state (CTS) of the Eu3+ ion. The excitation spectrum of BaZr(BO3)2:Tb3+consists of one broad band in the range from 120 nm to 170 nm and the bands peaking at 226 nm, 245 nm and 272 nm respectively. The former is also attributed to the absorption of the BO3 groups. The latter correspond to the 4f8-4f75d transition of Tb3+.Main peak of the host absorption moves about 30 nm to high energy region as Sr2+ replaces Ba2+ partially.

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Periodical:

Key Engineering Materials (Volumes 368-372)

Edited by:

Wei Pan and Jianghong Gong

Pages:

369-371

Citation:

D. W. He et al., "Luminescence Properties of LnZr(BO3)2:Re (Ln=Ba, Sr; Re=Eu, Ce,Tb)", Key Engineering Materials, Vols. 368-372, pp. 369-371, 2008

Online since:

February 2008

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$38.00

[1] S. Shionoya and W.M. Yen: Phosphor Handbook, CRC Press, Boca Raton, (1999).

[2] C.R. Ronda: J. Lumin. Vol. 72-74 (1997), p.49.

[3] A.M. Srivastava and D.A. Doughty: J. Electrochem. Soc. Vol. 144 (1997), p.190.

[4] R.T. Wegh, H. Donker and K.D. Oskam: Science Vol. 283 (1999), p.663.

[5] S.K. Kurtz and T.T. Perry: J. Appl. Phys. Vol. 39 (1968), p.3798.

[6] T. Fukuzawa and S. Tanimizu: J. Lumin. Vol. 16 (1978) , p.447.

[7] J.C. Krupa and M. Queffelec: J. Alloys Comp. Vol. 250 (1997), p.287.

[8] H.P. You, G. Hong, X. Zeng, et al.: J. Phys. Chem Solids Vol. 61 (2000), p. (1985).

[9] V. Hornebecq, P. Gravereau, J.P. Chaminade, et al: Mater. Res. Bull. Vol. 37 (2002) , p.2165.

[10] M.T. Jose and A.R. Lakshmanan: J. Optical Materials Vol. 24 (2004), p.651. Fig. 5 Emission spectra of Ba0. 6Sr0. 4Zr(BO3)2: Eu(5%) and Tb(5%) under 147nm excitation.

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