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Lin Q, Gao T, Liu Y, Liu R, Chen S, Ma X, Zhao C. Design of luminescence in (Sr,Gd)Li(Al,Mg)3N4:Eu2+ deep red phosphor via crystal field engineering for full-spectrum WLEDs. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Fang MH, Mahlik S, Lazarowska A, Grinberg M, Molokeev MS, Sheu HS, Lee JF, Liu RS. Structural Evolution and Effect of the Neighboring Cation on the Photoluminescence of Sr(LiAl 3 ) 1-x (SiMg 3 ) x N 4 :Eu 2+ Phosphors. Angew Chem Int Ed Engl 2019; 58:7767-7772. [PMID: 30957924 DOI: 10.1002/anie.201903178] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Indexed: 11/05/2022]
Abstract
In this study, a series of Sr(LiAl3 )1-x (SiMg3 )x N4 :Eu2+ (SLA-SSM) phosphors were synthesized by a solid-solution process. The emission peak maxima of SLA-SSM range from 615 nm to 680 nm, which indicates structural differences in these materials. 7 Li solid-state NMR spectroscopy was utilized to distinguish between the Li(1)N4 and Li(2)N4 tetrahedra in SLA-SSM. Differences in the coordination environments of the two Sr sites were found which explain the unexpected luminescent properties. Three discernible morphologies were detected by scanning electron microscopy. Temperature-dependent photoluminescence and decay times were used to understand the diverse environments of europium ions in the two strontium sites Sr1 and Sr2, which also support the NMR analysis. Moreover, X-ray absorption near-edge structure studies reveal that the Eu2+ concentration in SLA-SSM is much higher than that in in SrLiAl3 N4 :Eu2+ and SrSiMg3 N4 :Eu2+ phosphors. Finally, an overall mechanism was proposed to explain the how the change in photoluminescence is controlled by the size of the coordinated cation.
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Affiliation(s)
- Mu-Huai Fang
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
| | - Sebastian Mahlik
- Institute of Experimental Physics, Faculty of Mathematics, Physics and Informatics, Gdańsk University, Wita Stwosza 57, 80-308, Gdańsk, Poland
| | - Agata Lazarowska
- Institute of Experimental Physics, Faculty of Mathematics, Physics and Informatics, Gdańsk University, Wita Stwosza 57, 80-308, Gdańsk, Poland
| | - Marek Grinberg
- Institute of Experimental Physics, Faculty of Mathematics, Physics and Informatics, Gdańsk University, Wita Stwosza 57, 80-308, Gdańsk, Poland
| | - Maxim S Molokeev
- Laboratory of Crystal Physics, Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia.,Siberian Federal University, Krasnoyarsk, 660041, Russia.,Department of Physics, Far Eastern State Transport University, Khabarovsk, 680021, Russia
| | - Hwo-Shuenn Sheu
- National Synchrotron Radiation Research Center, Hsinchu, 300, Taiwan
| | - Jyh-Fu Lee
- National Synchrotron Radiation Research Center, Hsinchu, 300, Taiwan
| | - Ru-Shi Liu
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan.,Department of Mechanical Engineering, and Graduate Institute of Manufacturing Technology, National Taipei University of Technology, Taipei, 106, Taiwan
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Fang M, Mahlik S, Lazarowska A, Grinberg M, Molokeev MS, Sheu H, Lee J, Liu R. Structural Evolution and Effect of the Neighboring Cation on the Photoluminescence of Sr(LiAl
3
)
1−
x
(SiMg
3
)
x
N
4
:Eu
2+
Phosphors. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903178] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Mu‐Huai Fang
- Department of ChemistryNational Taiwan University Taipei 106 Taiwan
| | - Sebastian Mahlik
- Institute of Experimental PhysicsFaculty of Mathematics, Physics and Informatics, Gdańsk University Wita Stwosza 57 80-308 Gdańsk Poland
| | - Agata Lazarowska
- Institute of Experimental PhysicsFaculty of Mathematics, Physics and Informatics, Gdańsk University Wita Stwosza 57 80-308 Gdańsk Poland
| | - Marek Grinberg
- Institute of Experimental PhysicsFaculty of Mathematics, Physics and Informatics, Gdańsk University Wita Stwosza 57 80-308 Gdańsk Poland
| | - Maxim S. Molokeev
- Laboratory of Crystal PhysicsKirensky Institute of PhysicsFederal Research Center KSC SB RAS Krasnoyarsk 660036 Russia
- Siberian Federal University Krasnoyarsk 660041 Russia
- Department of PhysicsFar Eastern State Transport University Khabarovsk 680021 Russia
| | - Hwo‐Shuenn Sheu
- National Synchrotron Radiation Research Center Hsinchu 300 Taiwan
| | - Jyh‐Fu Lee
- National Synchrotron Radiation Research Center Hsinchu 300 Taiwan
| | - Ru‐Shi Liu
- Department of ChemistryNational Taiwan University Taipei 106 Taiwan
- Department of Mechanical Engineering, and Graduate Institute of Manufacturing TechnologyNational Taipei University of Technology Taipei 106 Taiwan
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Liu WQ, Wu D, Chang H, Duan RX, Wu WJ, Amu G, Chao KF, Bao FQ, Tegus O. The Enhanced Red Emission and Improved Thermal Stability of CaAlSiN₃:Eu 2+ Phosphors by Using Nano-EuB₆ as Raw Material. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E66. [PMID: 29370148 PMCID: PMC5853698 DOI: 10.3390/nano8020066] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 01/19/2018] [Accepted: 01/22/2018] [Indexed: 11/18/2022]
Abstract
Synthesizing phosphors with high performance is still a necessary work for phosphor-converted white light-emitting diodes (W-LEDs). In this paper, three series of CaAlSiN₃:Eu2+ (denoted as CASN:Eu2+) phosphors using Eu₂O₃, EuN and EuB₆ as raw materials respectively are fabricated by under the alloy precursor normal pressure nitridation synthesis condition. We demonstrate that CASN:Eu2+ using nano-EuB₆ as raw material shows higher emission intensity than others, which is ascribed to the increment of Eu2+ ionic content entering into the crystal lattice. An improved thermal stability can also be obtained by using nano-EuB₆ due to the structurally stable status, which is assigned to the partial substitution of Eu-O (Eu-N) bonds by more covalent Eu-B ones that leads to a higher structural rigidity. In addition, the W-LEDs lamp was fabricated to explore its possible application in W-LEDs based on blue LEDs. Our results indicate that using EuB₆ as raw materials can provide an effective way of enhancing the red emission and improving the thermal stability of the CASN:Eu2+ red phosphor.
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Affiliation(s)
- Wen-Quan Liu
- Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot 010022, China; (W.-Q.L.); (H.C.); (R.-X.D.); (W.-J.W.); (F.-Q.B.)
| | - Dan Wu
- School of Physical Science and Technology, & Inner Mongolia Key Lab of Nanoscience and Nanotechnology, Inner Mongolia University, Hohhot 010021, China;
| | - Hugejile Chang
- Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot 010022, China; (W.-Q.L.); (H.C.); (R.-X.D.); (W.-J.W.); (F.-Q.B.)
| | - Ru-Xia Duan
- Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot 010022, China; (W.-Q.L.); (H.C.); (R.-X.D.); (W.-J.W.); (F.-Q.B.)
| | - Wen-Jie Wu
- Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot 010022, China; (W.-Q.L.); (H.C.); (R.-X.D.); (W.-J.W.); (F.-Q.B.)
| | - Guleng Amu
- Department of physics and electrical engineering, Xilingol Vocational College, Xilinhot 0026000, China;
| | - Ke-Fu Chao
- Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot 010022, China; (W.-Q.L.); (H.C.); (R.-X.D.); (W.-J.W.); (F.-Q.B.)
| | - Fu-Quan Bao
- Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot 010022, China; (W.-Q.L.); (H.C.); (R.-X.D.); (W.-J.W.); (F.-Q.B.)
| | - Ojiyed Tegus
- Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, College of Physics and Electronic Information, Inner Mongolia Normal University, Hohhot 010022, China; (W.-Q.L.); (H.C.); (R.-X.D.); (W.-J.W.); (F.-Q.B.)
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Cui D, Song Z, Xia Z, Liu Q. Luminescence Tuning, Thermal Quenching, and Electronic Structure of Narrow-Band Red-Emitting Nitride Phosphors. Inorg Chem 2017; 56:11837-11844. [DOI: 10.1021/acs.inorgchem.7b01816] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Dianpeng Cui
- The Beijing Municipal Key Laboratory of
New Energy Materials and Technologies, School of Materials Sciences
and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Zhen Song
- The Beijing Municipal Key Laboratory of
New Energy Materials and Technologies, School of Materials Sciences
and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Zhiguo Xia
- The Beijing Municipal Key Laboratory of
New Energy Materials and Technologies, School of Materials Sciences
and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Quanlin Liu
- The Beijing Municipal Key Laboratory of
New Energy Materials and Technologies, School of Materials Sciences
and Engineering, University of Science and Technology Beijing, Beijing 100083, China
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Luo D, Wang L, Or SW, Zhang H, Xie RJ. Realizing superior white LEDs with both high R9 and luminous efficacy by using dual red phosphors. RSC Adv 2017. [DOI: 10.1039/c7ra04614f] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An unique spectral configuration was designed to improve both luminous efficacy and color rendering by using dual red phosphors.
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Affiliation(s)
- Dong Luo
- College of Optical and Electronic Technology
- China Jiliang University
- Hangzhou
- China
| | - Le Wang
- College of Optical and Electronic Technology
- China Jiliang University
- Hangzhou
- China
- Department of Electrical Engineering
| | - Siu Wing Or
- Department of Electrical Engineering
- The Hong Kong Polytechnic University
- Kowloon
- Hong Kong
| | - Hong Zhang
- College of Optical and Electronic Technology
- China Jiliang University
- Hangzhou
- China
| | - Rong-Jun Xie
- College Materials
- Xiamen Univeristy
- Xiamen
- China
- Sialon Group
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