Effect of Eu3+ - Dopant Concentration on Structural and Luminescence Properties of Sry2o4 Nanocrystalline Phosphor and Potential Application in Dye-Sensitized Solar Cells

被引：6

作者：

Lojpur, Vesna ^{[1
]}

Stojadinovic, Stevan ^{[2
]}

Mitric, Miodrag ^{[1
]}

机构：

[1] Univ Belgrade, Vinca Inst Nucl Sci, POB 522, Belgrade 11001, Serbia

[2] Univ Belgrade, Fac Phys, Studentski Trg 12 16, Belgrade 11000, Serbia

来源：

SCIENCE OF SINTERING | 2018年 / 50卷 / 03期

关键词：

Luminescence; Phosphors; SrY2O4; Hypericin; Solar cells; PHOTOLUMINESCENCE PROPERTIES; UP-CONVERSION; COMBUSTION SYNTHESIS; RED; UV;

D O I：

10.2298/SOS1803347L

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

SrY2O4 phosphors were doped with different concentrations of Eu3+ (0.5, 1, 2, 4, 8 and 10 at %) in order to investigate the maximal doping concentration of Eu3+ and its implementation in solar cell devices. Samples were synthesized by a combustion method using citric acid and glycine as a fuel. The X-ray diffraction (XRD) patterns confirmed pure phase of SrY2O4. FE-SEM micrographs showed agglomerate phenomenon with spherical-like shape particles and diameter of about 50 nm. Upon excitation with 280 nm, emission spectra were recorded in the range from 450-750 nm and in all samples the same energy transitions were observed D-5(0 )-> F-7(J) (J = 1, 2, 3 and 4) with maximal intensity for sample with 8 at % of Eu3+. That sample was further examined for the purpose of application in solar cell devices and showed high value of efficiency at low light intensities.

引用

页码：347 / 355

页数：9

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