Blue-emitting AlN: Eu2+ nitride phosphor for field emission displays

N. Hirosaki, R. J. Xie, K. Inoue, T. Sekiguchi, B. Dierre, K. Tamura

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An Eu2+ -activated AlN phosphor was synthesized by firing the powder mixture of AlN, α- Si3 N4, and Eu2 O3 at 2050 °C for 4 h under 1.0 MPa N2. This nitride phosphor emits a strong blue color with the chromaticity coordinates of x=0.139 and y=0.106 at an accelerating voltage of 3 kV. The cathodoluminescence properties of AlN: Eu2+ was evaluated by utilizing it in the Spindt-type field emission display panel. It shows that the nitride phosphor exhibits higher brightness, higher color purity, lower saturation, and longer lifetime than the currently used Y2 Si O5: Ce3+, indicative of the suitability of the AlN: Eu2+ blue phosphor in field emission displays.

Original languageEnglish
Article number061101
JournalApplied Physics Letters
Issue number6
Publication statusPublished - 2007 Aug 17

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Hirosaki, N., Xie, R. J., Inoue, K., Sekiguchi, T., Dierre, B., & Tamura, K. (2007). Blue-emitting AlN: Eu2+ nitride phosphor for field emission displays. Applied Physics Letters, 91(6), [061101].