A novel and high brightness AlN:Mn2+red phosphor for field emission displays

Xiao Jun Wang, Rong Jun Xie, Benjamin Dierre, Takashi Takeda, Takayuki Suehiro, Naoto Hirosaki, Takashi Sekiguchi, Huili Li, Zhuo Sun

Research output: Contribution to journalArticlepeer-review

59 Scopus citations

Abstract

Mn2+doped-AlN red phosphors were prepared by the solid-state reaction method. X-ray diffraction, SEM-EDS, photoluminescence and cathodoluminescence were utilized to characterize the prepared phosphor. Under UV light or electron beam excitation, the AlN:Mn2+phosphors exhibit a strong red emission centered at 600 nm, which is ascribed to the characteristic4T1(4G)–6A1(6S) transition of Mn2+. Energy level diagrams were constructed to discuss the photoluminescence and cathodoluminescence processes of the AlN:1% Mn2+phosphor. The oxygen-related defects in AlN have great influence on the photoluminescence and cathodoluminescence properties of the AlN:1% Mn2+phosphor. The dependence of brightness on accelerating voltage or electric current, the decay behavior of CL intensity under the electron bombardment, and the stability of CIE chromaticity coordinates were investigated in detail. The results indicate that the AlN:Mn2+phosphor exhibits a higher brightness, higher color purity, and lower saturation compared to the red Y2O3:Eu3+phosphor, which gives the AlN:Mn2+phosphor great potential as a red phosphor for full color FEDs.

Original languageEnglish
Pages (from-to)6120-6127
Number of pages8
JournalJournal of the Chemical Society. Dalton Transactions
Volume43
Issue number16
DOIs
StatePublished - Mar 25 2014

Scopus Subject Areas

  • General Chemistry

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