Title of article
Effect of Mn substitution on electronic structure of Ca9Y(PO4)7:Eu2+, Mn2+ phosphor determined by X-ray absorption spectroscopy
Author/Authors
Lu، نويسنده , , Y.R. and Huang، نويسنده , , C.H. and Chen، نويسنده , , T.M. and Lin، نويسنده , , J.H. and Ma، نويسنده , , Y.R. and Chen، نويسنده , , J.L. and Hsu، نويسنده , , C.C. and Chen، نويسنده , , C.L. and Dong، نويسنده , , C.L. and Chan، نويسنده , , T.S.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2011
Pages
4
From page
245
To page
248
Abstract
The single-composition Ca9Y(PO4)7:Eu2+, Mn2+ phosphors were synthesized by a solid-state reaction. The luminescent properties and electronic structures were investigated by photoluminescence (PL) and X-ray absorption near-edge structure (XANES). The PL demonstrated energy transfer and a red-shift as the Mn doping level was increased. The energy transfer is ascribed to charge transfer between Eu and Mn. The change of the PL intensity is caused by the increased O 2p–Mn 3d hybridization. The narrowing of the band gap, which finding is supported by the red-shift, is responsible for the formation of the Mn-related states close to the conduction band minimum.
Journal title
Chemical Physics Letters
Serial Year
2011
Journal title
Chemical Physics Letters
Record number
1932156
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