Rapid Synthesis of Red-Emitting Sr2Sc0.5Ga1.5O5:Eu2+ Phosphors and the Tunable Photoluminescence Via Sr/Ba Substitution : научное издание

Yang Z.; Zhou Y.; Qiao J.; Xia Z.; Molokeev M.S.

Дополнительные ссылки: eLibrary

База данных: Каталог библиотеки СФУ

Библиографическое описание: Rapid Synthesis of Red-Emitting Sr2Sc0.5Ga1.5O5:Eu2+ Phosphors and the Tunable Photoluminescence Via Sr/Ba Substitution : научное издание / Z. Yang [et al.]. - Текст : непосредственный // Advanced Optical Materials. - 2021. - № . - ISSN 2195-1071, DOI 10.1002/adom.202100131.

Аннотация: Discovering new Eu2+-doped red-emitting phosphors in oxide-based materials is a challenge for white light-emitting diode (WLED) applications. Herein, a highly efficient high-frequency induction heating method is employed to rapidly prepare the red-emitting Sr2Sc0.5Ga1.5O5:Eu2+ phosphors peaking at 614 nm and exhibiting a high photoluminescence quantum yield of 78.4% under the excitation of 440 nm. The structural and spectral analyses suggest that Eu2+ ions tend to enter the [Sc1/Ga1O6] and [Ga2O6] polyhedrons with small coordination numbers, leading to the broadband red emission originated from large crystal field splitting of Eu2+ 5d level. The chemical substitution of Ba in the Sr site enhances the thermal stability and helps to the photoluminescence tuning from 614 to 728 nm in SrBaSc0.5Ga1.5O5:Eu2+. The WLED device fabricated by blending the red Sr1.7Ba0.3Sc0.5Ga1.5O5:Eu2+ and yellow Y3(Al, Ga)5O12:Ce3+ phosphors shows a high color-rendering index (Ra = 91.1), and low color-correlated temperature (CCT = 4750 K). This study aims to provide a new synthesis method and design principle for guiding the development of Eu2+-doped oxide-based red phosphors with low preparation cost; moreover, the photoluminescence tuning strategy via cation substitutions is essential to achieve tunable emission, even the near-infrared luminescence.

Год издания: 2021

Авторы: Yang Z. , Zhou Y. , Qiao J. , Xia Z. , Molokeev M.S.

Источник: Advanced Optical Materials

Держатель оригинала документа: Institute of Engineering Physics and Radioelectronics Siberian Federal University, Laboratory of Crystal Physics,Kirensky Institute of Physics,Federal Research Center KSC SB RAS, Research and Development Department,Kemerovo State University, School of Physics and Optoelectronics,South China University of Technology, State Key Laboratory of Luminescent Materials and Devices,Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques,Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices,School of Materials Science and Engineering,South China University of Technology

Количество экземпляров:

Твёрдая копия издания отсутствует в фонде библиотеки

Показать дополнительные сведения

Eu2+ Stabilized at Octahedrally Coordinated Ln3+ Site Enabling Red Emission in Sr3LnAl2O7.5 (Ln = Y… : научное издание

Hu T. и др.
2021 год

Giant Red-Shifted Emission in (Sr,Ba)Y2O4:Eu2+ Phosphor Toward Broadband Near-Infrared Luminescence : научное издание

Yang Z. и др.
2021 год

Designing High-Performance LED Phosphors by Controlling the Phase Stability via a Heterovalent… : статья из журнала

Cheng C. и др.
2020 год

Multiple Strategies to Approach High-Efficiency Luminescence Controllable in Blue/Cyan/Green… : статья из журнала

Gao P. и др.
2022 год

Structural Confinement toward Giant Enhancement of Red Emission in Mn2+-Based Phosphors : статья из журнала

Zhang Z. и др.
2018 год

Multiple Substitution Strategies toward Tunable Luminescence in Lu2MgAl4SiO12:Eu2+ Phosphors : научное издание

Ming Zhiqiang и др.
2020 год

Novel Far-red Phosphors (La, Gd, Y)2MgTiO6:Cr3+ with Tunable Luminescence Spectra for Grow Light … : статья из журнала

Gao P.-X. и др.
2022 год

Coordination units of Mn2+modulation toward tunable emission in zero-dimensional bromides for… : статья из журнала

Zhou G. и др.
2022 год

Ultrabroadband red luminescence of Mn4+ in MgAl2O4 peaking at 651 nm : научное издание

Ji Haipeng и др.
2020 год

Structure analysis, tuning photoluminescence and enhancing thermal stability on Mn4+-doped La2… : научное издание

Gai Shujie и др.
2020 год

Glass-ceramics with thermally stable blue-red emission for high-power horticultural LED applications : научное издание

Chen Weibin и др.
2020 год

High moisture resistance of an efficient Mn4+-activated red phosphor Cs2NbOF5:Mn4+ for WLEDs : статья из журнала

Zhou Jianbang и др.
2021 год

Facile synthesis of the desired red phosphor Li2Ca2Mg2Si2N6:Eu2+ for high CRI white LEDs and plant… : научное издание

Yang Xiang и др.
2020 год

Site-Selective Occupancy of Eu2+ Toward Blue-Light-Excited Red Emission in a Rb3YSi2O7:Eu Phosphor : научное издание

Qiao J. и др.
2019 год

Highly efficient Fe3+-doped A2 BB′O6 (A = Sr2+, Ca2+; B, B′ = In3+, Sb5+, Sn4+) broadband near… : статья из журнала

Liu D. и др.
2022 год

Enhanced green emission and thermal stability of Ba3Si6O12N2:Eu2+ by Ce3+/P5+-doping: Unity… : статья из журнала

Hao Jiarui и др.
2020 год

Библиотечно-издательский комплекс СФУ

Rapid Synthesis of Red-Emitting Sr2Sc0.5Ga1.5O5:Eu2+ Phosphors and the Tunable Photoluminescence Via Sr/Ba Substitution : научное издание
статья из журнала

Похожие публикации