Tunable luminescence evolution and energy transfer behavior of Na3Sc2(PO4)3:Ce3+/Tb3+/Eu3+ phosphors. Issue 3 (10th January 2019)

• Record Type: Journal Article
• Authors: Zhang, Yufeng; Xiong, Jie; Shen, Dingyi; Xia, Wenpeng; Yu, Jie; Zhang, Yanfei; Yang, Jun; Hu, Shanshan; Wan, Yuxin; Wen, Haili; Ye, Hang; Liu, Yucan
• Is Part Of: RSC advances. Volume 9:Issue 3(2019)
• Page Start: 1270
• Page End: 1277
• Publication Date: 2019-01-10
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c8ra07827k
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : A series of color-tunable emitting Na3 Sc2 (PO4 )3 :Ce 3+ /Tb 3+ /Eu 3+ (NSPO) phosphors were prepared by a combination of hydrothermal synthesis and low temperature calcination. Abstract : A series of color-tunable emitting Na3 Sc2 (PO4 )3 :Ce 3+ /Tb 3+ /Eu 3+ (NSPO) phosphors were prepared by a combination of hydrothermal synthesis and low temperature calcination. The phase structure, photoluminescence and energy transfer properties of the samples were studied in detail. The tunable colors were obtained by co-doping the Tb 3+ ions into the NSPO:Ce 3+ or NSPO:Eu 3+ phosphors with varying concentrations. Under UV excitation, the energy transfers from Tb 3+ to Eu 3+ in the NSPO host occurred mainly via a dipole–dipole mechanism, and the critical distances of the ion pairs ( R c ) was calculated to be 17.94 Å by the quenching concentration method. And that, the emission colors of the NSPO:Tb 3+, Eu 3+ phosphors could be adjusted from green through yellow to red because of the energy transfer from Tb 3+ to Eu 3+ . Based on its good photoluminescence properties and abundant emission colors, the NSPO:Ce 3+ /Tb 3+ /Eu 3+ phosphors might be promising as potential candidates for solid-state lighting and display fields.