Enhancement of the luminescence properties of Sr3(PO4)2:Dy3+, Li+ white‐light‐emitting phosphors by charge compensator Li+ co‐doping. (8th September 2017)

• Record Type: Journal Article
• Authors: Li, Yuhang; Dai, Siyi; Zhang, Wentao; Zhang, Peicong; Qiu, Kehui
• Is Part Of: Luminescence. Volume 32:Number 8(2017)
• Page Start: 1593
• Page End: 1596
• Publication Date: 2017-09-08
• Subjects: charge compensation -- photoluminescence -- rare earth ions doping -- Sr3(PO4)2 -- white‐emitting; Luminescence -- Periodicals; Bioluminescence -- Periodicals; Chemiluminescence -- Periodicals; Luminescence -- Periodicals; 535.35
• DOI: 10.1002/bio.3387
• Languages: English
• ISSNs: 1522-7235

Abstract

Abstract: Sr3 (PO4 )2 :Dy 3+, Li + phosphors were prepared using a simple high temperature solid method for luminescence enhancement. The structures of the as‐prepared samples agreed well with the standard phase of Sr3 (PO4 )2, even when Dy 3+ and Li + were introduced. Under ultraviolet excitation at 350 nm, the Sr3 (PO4 )2 :Dy 3+ sample exhibited two emission peaks at 483 nm and 580 nm, which were due to the 4 F9/2 → 6 H15/2 and 4 F9/2 → 6 H13/2 transitions of Dy 3+ ions, respectively. A white light was fabricated using these two emissions from the Sr3 (PO4 )2 :Dy 3+ phosphors. The luminescence properties of Sr3 (PO4 )2 :Dy 3+, Li + phosphors, including emission intensity and decay time, were improved remarkably with the addition of Li + as the charge compensator, which would promote their application in near‐ultraviolet excited white‐light‐emitting diodes.