Structural and Optical Investigations of Gd2O3:Dy3+ Nanophosphor

被引：1

作者：

Vats, Rajni ^{[1
]}

Ahlawat, Rachna ^{[1
]}

机构：

[1] Chaudhary Devi Lal Univ, Dept Phys, Mat Sci Lab, Sirsa 125055, Haryana, India

来源：

ADVANCES IN BASIC SCIENCES (ICABS 2019) | 2019年 / 2142卷

关键词：

NANOPARTICLES; LN;

D O I：

10.1063/1.5122526

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Powder sample of Gd2O3:Dy3+ nano-phosphor was synthesized by citrate sol-gel technique. The synthesized sample was annealed at 650 degrees C for 4 h at a rate of 2 degrees C/min. Structural and optical investigations of pristine and annealed samples were carried out with the help of XRD, FTIR, FESEM, EDS and Photoluminescence (PL) spectra. Crystallite size, lattice parameter and micro-strain of cubic Gd2O3:Dy3+ were evaluated by Debye-Scherrer equation and Williamson-Hall Equation, respectively. Nelson-Riley and Bradley-Jay plotswere utilized for precise measurement of lattice parameter. In optical investigations, intense blue emissions at 486 nm and yellow emission at 572 nm was observed in pristine sample. It is observed that the intensity of characteristic emission in annealed sample has been enhanced with slight shift in their position may be due to increased number of defect states.

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页数：5

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