JAMP  Vol.6 No.4 , April 2018
Strontium Thiogallate: An Efficient Green Emitting Phosphor for UV LEDs
In this paper we have reported green emission for europium activated strontium thiogallate. The phosphor is prepared by the precipitation method followed by heating at reducing atmosphere produced by the burning charcoal and characterized using XRD, PL and EL techniques. The phosphor SrGa2S4:Eu2+ gives intense green emission at 525 nm when excited by 400 nm wavelength. LEDs were also fabricated by coating europium activated strontium thiogallate on 390 nm LED chip. Intense green LEDs were obtained which can be useful for new LED applications. This phosphor can also be a prominent green component for the fabrication of white LEDs from UV diodes.
Cite this paper: Meshram, N. and Yadav, P. (2018) Strontium Thiogallate: An Efficient Green Emitting Phosphor for UV LEDs. Journal of Applied Mathematics and Physics, 6, 663-666. doi: 10.4236/jamp.2018.64059.

[1]   Mukai, T., Yamada, M. and Nakamura, S. (1999) Jpn. J. Appl. Phys., 38, 3976.

[2]   Mack, M.P., Abare, A.C., Hansen, M., Kozodoy, P., Keller, S., Mishra, U., Coldren, L.A. and Den Baars, S.P. (1998) J. Cryst. Growth, 837, 189-190.

[3]   Nakamura, S., Senoh, M., Nagahama, S.I., Iwasa, N., Yamada, T., Matsushita, T., Sugimoto, Y. and Kiyoku, H. (1997) Appl. Phys. Lett., 70, 1417.

[4]   Zhang, X.M., Park, B., Choi, N., Kim, J. Kim, G.C. and Yoo, J.H. (2009) Mater.lett., 63, 700.

[5]   Nakamura, S. and Fasol, G. (1997) The Blue Laser Diode: GaN Based Light Emitters and Lasers. Spring, Heidelberg.

[6]   Xu, Y., Chen, L., Li, Y., Song, G., Wang, Y., Zhuang, W. and Long, Z. (2008) Appl Phys Lett., 92, 021129.

[7]   Khizar, M., Fan, Z.Y., Kim, K.H., Lin, J.Y. and Jiang, H.X. (2005) Appl Phys Lett, 86, Article ID: 173504.

[8]   Chen, L., Lin, C.-C., Yeh, C.-W. and Liu, R.-S. (2010) Materials, 3, 2172.

[9]   Xie, R.-J., Hirosaki, N., Li, Y.Q. and Takeda, T. (2010) Materials, 3, 3777.

[10]   Ye, S., Xiao, F., Pan, Y.X., Ma, Y.Y. and Zhang, Q.Y. (2010) Mater. Sci. Engg. R, 71, 1.