Synthesis, structure and photoluminescence properties of Ca2YTaO6: Bi3+\Eu3+ double perovskite white light emitting phosphors

被引：44

作者：

Khan, Noor Zamin ^{[1
]}

Khan, Sayed Ali ^{[2
]}

Zhan, Li ^{[1
]}

Jalil, Abdul ^{[1
]}

Ahmed, Jahangeer ^{[4
]}

Khan, M. A. Majeed ^{[5
]}

Abbas, Muhammad Tahir ^{[3
]}

Wang, Feihong ^{[1
]}

Xu, Xin ^{[1
]}

机构：

[1] Univ Sci & Technol China, Sch Chem & Mat Sci, CAS Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China

[2] Xiamen Univ, Sch Elect Sci & Engn, Xiamen 361005, Peoples R China

[3] Univ Sci & Technol China, Sch Phys Sci, Key Lab Strongly Coupled Quantum Matter Phys, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China

[4] King Saud Univ, Coll Sci, Dept Chem, Riyadh 11451, Saudi Arabia

[5] King Saud Univ, King Abdullah Inst Nanotechnol, Riyadh 11451, Saudi Arabia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2021年 / 868卷

基金：

中国国家自然科学基金;

关键词：

Single-phase phosphors; Intrinsic emission; Various color tuning; Energy transfer; Intensive; Electronic band-gap; SOLID-SOLUTION PHOSPHORS; LUMINESCENCE PROPERTIES; ENERGY-TRANSFER; HIGHLY EFFICIENT; UP-CONVERSION; SPECTROSCOPIC PROPERTIES; TUNABLE LUMINESCENCE; THERMAL-STABILITY; EMISSION; SITE;

D O I：

10.1016/j.jallcom.2021.159257

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：

Novel tunable-color emitting phosphors with double perovskite structure un-doped, single and co-doped with Bi3+/Eu3+ ions were successfully synthesized by the high-temperature solid state reaction method. The crystal structure, band-gap, and electronic structure were investigated by using computational methods. The morphology and phase composition were obtained with scanning electron microscopy and powder x-ray diffraction. The un-doped Ca2YTaO6 phosphors shows an intensive intrinsic emission centered at 424 nm under 315 nm UV light excitation. The obtained intense blue emission (424 nm) was efficiently tuned to cyan, red and white light with doping of Bi3+ and Eu3+ as a result of energy transfer. (C) 2021 Elsevier B.V. All rights reserved.

引用

页数：10

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