Structural and luminescence properties of thermally stable cool-white light emitting NaCaPO4:Dy3+ phosphor

被引：26

作者：

Nair, Govind B. ^{[1
]}

Tamboli, Sumedha ^{[2
]}

Dhoble, S. J. ^{[2
]}

Swart, H. C. ^{[1
]}

机构：

[1] Univ Free State, Dept Phys, POB 339, ZA-9300 Bloemfontein, South Africa

[2] RTM Nagpur Univ, Dept Phys, Nagpur 440033, Maharashtra, India

来源：

OPTIK | 2020年 / 219卷

基金：

新加坡国家研究基金会;

关键词：

Phosphate; LED; Phosphor; Photoluminescence; Thermal stability; ENERGY-TRANSFER; IONS; CE3+; EU2+;

D O I：

10.1016/j.ijleo.2020.165026

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The photoluminescence (PL) properties of NaCaPO4:Dy3+ phosphor synthesized by sol-gel method forms the main focus of this report. The structural, morphological and luminescence properties of the NaCaPO4:Dy3+ phosphors were examined using X-ray diffraction, scanning electron microscopy and PL. The structure of the phosphor with the optimum Dy3+-concentrafion was refined using the Rietveld method. The PL spectra under 350 nm excitation revealed three peaks in the blue, yellow and red region. Stark splitting was observed for the blue emission peak. The thermal quenching behavior of the PL emission of the phosphor was analyzed to determine its thermal stability.

引用

页数：11

共 24 条

[1] STRUCTURE OF THE LOW-TEMPERATURE VARIETY OF CALCIUM SODIUM ORTHO-PHOSPHATE, NACAPO4 [J].

BENAMARA, M ;

VLASSE, M ;

LEFLEM, G ;

HAGENMULLER, P .

ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY, 1983, 39 (NOV) :1483-1485

[2] ELECTRONIC ENERGY LEVELS IN TRIVALENT LANTHANIDE AQUO IONS .I. PR3+ ND3+ PM3+ SM3+ DY3+ HO3+ ER3+ AND TM3+ [J].

CARNALL, WT ;

FIELDS, PR ;

RAJNAK, K .

JOURNAL OF CHEMICAL PHYSICS, 1968, 49 (10) :4424-&

[3] Development of an optical thermometry system for phosphor materials [J].

Erasmus, L. J. B. ;

Terblans, J. J. ;

Swart, H. C. .

VACUUM, 2018, 155 :702-711

[4] Reduction of Eu3+ to Eu2+ in NaCaPO4:Eu phosphors prepared in a non-reducing atmosphere [J].

Grandhe, Bhaskar Kumar ;

Bandi, Vengala Rao ;

Jang, Kiwan ;

Kim, Sang-Su ;

Shin, Dong-Soo ;

Lee, Yong-Ill ;

Lim, Jae-Min ;

Song, Taekwon .

JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (30) :7937-7942

[5] Color tuning of Lu3Al5O12:Dy3+ ceramic-based white light-emitting phosphors via Yb incorporation [J].

Hu, Song ;

Lu, Chunhua ;

Qin, Xianpeng ;

Zhou, Guohong ;

Xu, Zhongzi ;

Wang, Shiwei .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2017, 37 (01) :229-237

[6] Novel Yellow-Emitting Sr8MgLn(PO4)7:Eu2+ (Ln = Y, La) Phosphors for Applications in White LEDs with Excellent Color Rendering Index [J].

Huang, Chien-Hao ;

Chen, Teng-Ming .

INORGANIC CHEMISTRY, 2011, 50 (12) :5725-5730

[7] The Properties of Sintered Calcium Phosphate with [Ca]/[P]=1.50 [J].

Hung, I-Ming ;

Shih, Wei-Jen ;

Hon, Min-Hsiung ;

Wang, Moo-Chin .

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 2012, 13 (10) :13569-13586

[8] INFLUENCE OF ENERGY TRANSFER BY EXCHANGE MECHANISM ON DONOR LUMINESCENCE [J].

INOKUTI, M ;

HIRAYAMA, F .

JOURNAL OF CHEMICAL PHYSICS, 1965, 43 (06) :1978-&

[9] Versatile Phosphate Phosphors ABPO4 in White Light-Emitting Diodes: Collocated Characteristic Analysis and Theoretical Calculations [J].

Lin, Chun Che ;

Xiao, Zhi Ren ;

Guo, Guang-Yu ;

Chan, Ting-Shan ;

Liu, Ru-Shi .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (09) :3020-3028

[10] Energy transfer in single phase Eu3+-doped Y2WO6 phosphors [J].

Llanos, J. ;

Espinoza, D. ;

Castillo, R. .

RSC ADVANCES, 2017, 7 (25) :14974-14980

← 1 2 3 →