Tunable white light emissive Mg2SiO4:Dy3+ nanophosphor: Its photoluminescence, Judd-Ofelt and photocatalytic studies

被引：53
作者：
Naik, Ramachandra [1 ,2 ]
Prashantha, S. C. [2 ,3 ]
Nagabhushana, H. [4 ]
Sharma, S. C. [5 ]
Nagaswarupa, H. P. [3 ]
Anantharaju, K. S. [6 ]
Jnaneshwara, D. M. [7 ]
Girish, K. M. [8 ]
机构：
[1] New Horizon Coll Engn, Dept Phys, Bangalore 560103, Karnataka, India
[2] Bharathiar Univ, Ctr Res & Dev, Coimbatore 641046, Tamil Nadu, India
[3] East West Inst Technol, Dept Sci, Res Ctr, Bangalore 560091, Karnataka, India
[4] Tumkur Univ, Prof CNR Rao Ctr Adv Mat, Tumkur 572103, India
[5] Dayananda Sagar Univ, Shavige Malleshwara Hills, Bangalore 560078, Karnataka, India
[6] Dayanand Sagar Coll Engn, Dept Chem, Shavige Malleshwara Hills, Bangalore 560078, Karnataka, India
[7] SJB Inst Technol, Dept Phys, Bangalore 560060, Karnataka, India
[8] Dayananda Sagar Acad Technol & Management, Dept Phys, Bangalore 560082, Karnataka, India
来源：
DYES AND PIGMENTS | 2016年 / 127卷
关键词：
Mg2SiO4:Dy3+; Combustion; Nanophosphor; Photoluminescence; Judd-Ofelt; CIE & CCT; LUMINESCENCE PROPERTIES; COMBUSTION SYNTHESIS; OPTICAL-PROPERTIES; ENERGY-TRANSFER; IGNITION ROUTE; DY3+ IONS; TEMPERATURE; PHOSPHOR; EU3+; THERMOLUMINESCENCE;
D O I：
10.1016/j.dyepig.2015.12.014
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Dy3+ doped Mg2SiO4 nanoparticles have been synthesized by the solution combustion method at 350 degrees C temperature. The crystallinity and changes of lattice parameters with the incorporation of the Dy3+ ions are studied by means of Powder X-Ray Diffraction studies. Fourier transform infrared data indicate the formation of bonds and capping of the nanoparticles. Scanning electron microscopy pictures evident for the product is porous and agglomerated. The nano size of the product is confirmed by means of transmission electron microscopy. The characteristic emission peaks and the Judd-Ofelt intensity parameters of Mg2SiO4:Dy3+ nanoparticles are studied. The emission can be tuned from green (0.238, 0.348) to white (0.276, 0.347) which indicates, the prepared phosphors can be effectively used for white light emitting diodes and biosensors. Further, the degradation of dyes is found to be enhancing in the presence of Dy3+ ions due to suppress of the e(CB)(-) and h(VB)(+) recombination. (C) 2016 Elsevier Ltd. All rights reserved.
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收藏
页码：25 / 36
页数：12
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