Influence of Dy3+ concentration on spectroscopic behaviour of Sr3MgSi2O8:Dy3+ phosphors

被引：25

作者：

Dewangan, Pradeep ^{[1
]}

Bisen, D. P. ^{[1
]}

Brahme, Nameeta ^{[1
]}

Sharma, Shweta ^{[1
]}

Tamrakar, Raunak Kumar ^{[2
]}

Sahu, Ishwar Prasad ^{[3
]}

Upadhyay, Kanchan ^{[4
]}

机构：

[1] Pt Ravishankar Shukla Univ, SoS Phys & Astrophys, Raipur 492010, Chhattisgarh, India

[2] Bhilai Inst Technol Seth Balkrishan Mem, Dept Appl Phys, Near Bhilai Power House, Durg 49100, Chhattisgarh, India

[3] Indira Gandhi Natl Tribal Univ, Dept Phys, Amarkantak 484887, Madhya Pradesh, India

[4] Mahatma Gandhi Univ, Int & Inter Univ Ctr Nanosci & Nanotechnol, Kottyam 686560, Kerala, India

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2020年 / 816卷

关键词：

Sr3MgSi2O8; XRD; Photoluminescence; ClE color co-ordinates; White light; LUMINESCENCE; MECHANISM;

D O I：

10.1016/j.jallcom.2019.152590

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

White light emitting novel Sr3MgSi2O8:Dy3+ were synthesized by solid state reaction (SSR) process. The structural and morphological properties were analyzed by XRD and TEM. XRD pattern confirms presence of monoclinic structure with space group P121/a1. Emission spectra of Sr3MgSi2O8:Dy3+ phosphors were studied as a function of Dy3+ ion concentration. Emission spectra recorded at 350 nm excitation consist of characteristic blue and yellow emission bands cantered at 480 nm, 493 nm and 572 nm, which correspond to F-4(9/2 )-> H-6(15/2) and (4)F9/2 -> H-6(13/2) characteristic transitions of Dy3+ ions respectively. Emitted color of the phosphor was determined by CIE chromaticity graph. Sr3MgSi2O8:Dy3+ phosphors are depended upon to find potential applications, for instance, WLEDs and optical feature structure. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：7

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