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Tang Z, Du F, Leng Z, Xie H, Li Y, Zhao L. Seeking new, ultra-narrow-band blue emitting phosphors with high color purity for wide color gamut displays. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2022.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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2
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Cao F, Xiong Y, Liu J, Zhang J, Qin K, Sun J, Liu W, Shen X, Wu X, Wu Z. Eu 2+ as the structural probe in the phase transformation of CMSA by site-selective occupancy and adjustable multimode white luminescence in Ca 2(Mg 0.5Al 0.5)(Si 1.5Al 0.5O 7) akermanite based on high-aluminum blast furnace slag. Dalton Trans 2022; 51:13301-13310. [PMID: 35983759 DOI: 10.1039/d2dt01532c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A tunable multimode white emission Ca2(Mg0.5Al0.5)(Si1.5Al0.5O7):Eu2+/Eu3+ phosphor was prepared by doping Eu2O3 in molten high-aluminum blast furnace slag. The structural probe Eu2+ was studied during phase transformation between the glassy state and Ca2(Mg0.5Al0.5)(Si1.5Al0.5O7) crystals based on site-selective Eu2+ occupancy. When the doped Eu2+ ions occupied two different Ca2+ sites in the matrix, blue light (421 nm) and green light (516 nm) emissions were observed corresponding to two types of Eu2+Ca2+, namely Eu2+Ca2+ (Mg2+ → Al3+) and Eu2+Ca2+ (Si4+ → Al3+). The effects of Eu concentration (0.1-2.0 mol%), heat treatment temperature (800-1000 °C), and thermal quenching temperature (30-150 °C) on the structural evolution of the emission unit were studied by differential scanning calorimetry (DSC), photoluminescence spectroscopy (PL) and X-ray diffraction (XRD) analyses. The Eu2+Ca2+ (Mg2+ → Al3+) structure formed by site-selective Eu2+ occupancy possessed better structural stability in the Ca2(Mg0.5Al0.5)(Si1.5Al0.5O7) crystal matrix, in favour of light-emitting diode (LED) illumination and plasma display panels (PDPs).
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Affiliation(s)
- Fabin Cao
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling(Anhui University of Technology), Minstry of Education, Maanshan 243002, China.
| | - Ying Xiong
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling(Anhui University of Technology), Minstry of Education, Maanshan 243002, China.
| | - Jian Liu
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling(Anhui University of Technology), Minstry of Education, Maanshan 243002, China.
| | - Jingwen Zhang
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling(Anhui University of Technology), Minstry of Education, Maanshan 243002, China. .,Anhui Province Key Laboratory of Metallurgical Engineering & Resources Recycling (Anhui University of Technology), Maanshan 243002, China.
| | - Kailong Qin
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling(Anhui University of Technology), Minstry of Education, Maanshan 243002, China.
| | - Jingbo Sun
- Anhui Province Key Laboratory of Metallurgical Engineering & Resources Recycling (Anhui University of Technology), Maanshan 243002, China.
| | - Weiming Liu
- Key Laboratory of Metallurgical Emission Reduction & Resources Recycling(Anhui University of Technology), Minstry of Education, Maanshan 243002, China. .,Anhui Province Key Laboratory of Metallurgical Engineering & Resources Recycling (Anhui University of Technology), Maanshan 243002, China.
| | - Xingmei Shen
- Anhui Province Key Laboratory of Metallurgical Engineering & Resources Recycling (Anhui University of Technology), Maanshan 243002, China.
| | - Xingrong Wu
- Anhui Province Key Laboratory of Metallurgical Engineering & Resources Recycling (Anhui University of Technology), Maanshan 243002, China.
| | - Zhaojin Wu
- Anhui Province Key Laboratory of Metallurgical Engineering & Resources Recycling (Anhui University of Technology), Maanshan 243002, China.
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He J, Guo X, Chen Y, Shi R, Huang Y, Zhang J, Wang Y, Liu ZQ. VUV/Vis Photoluminescence, Site Occupancy, and Thermal-Resistance Properties of K4
SrSi3
O9
:Ce3+. Chemistry 2017; 24:1287-1294. [DOI: 10.1002/chem.201704373] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Jin He
- School of Chemistry and Chemical Engineering/, Guangzhou Key Laboratory for Environmentally Functional Materials and Technology; Guangzhou University; Guangzhou 510006 P.R. China
| | - Xiaoxuan Guo
- School of Chemistry and Chemical Engineering/, Guangzhou Key Laboratory for Environmentally Functional Materials and Technology; Guangzhou University; Guangzhou 510006 P.R. China
| | - Yibo Chen
- School of Chemistry and Chemical Engineering/, Guangzhou Key Laboratory for Environmentally Functional Materials and Technology; Guangzhou University; Guangzhou 510006 P.R. China
| | - Rui Shi
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry; Sun Yat-Sen University; Guangzhou 510275 P.R. China
| | - Yan Huang
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics; Chinese Academy of Sciences; Beijing 100039 P.R. China
| | - Jing Zhang
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics; Chinese Academy of Sciences; Beijing 100039 P.R. China
| | - Yufei Wang
- School of Chemistry and Chemical Engineering/, Guangzhou Key Laboratory for Environmentally Functional Materials and Technology; Guangzhou University; Guangzhou 510006 P.R. China
| | - Zhao-Qing Liu
- School of Chemistry and Chemical Engineering/, Guangzhou Key Laboratory for Environmentally Functional Materials and Technology; Guangzhou University; Guangzhou 510006 P.R. China
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4
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Zhu Y, Wang J, Zhao M, Chen C, Zheng L, Liu Y, Lei B, Zhang H. Cation–anion substitution induced spectral tuning and thermal stability optimization in Sr2SiO4:Eu phosphors. RSC Adv 2017. [DOI: 10.1039/c6ra28209a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
The cation–anion substitution results in spectral tuning and thermal stability optimization in Sr2Si1−xAlxO4−2xNx:Eu phosphors.
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Affiliation(s)
- Yue Zhu
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture
- College of Materials and Energy
- South China Agricultural University
- Guangzhou 510642
- P. R. China
| | - Jin Wang
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture
- College of Materials and Energy
- South China Agricultural University
- Guangzhou 510642
- P. R. China
| | - Mingyi Zhao
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture
- College of Materials and Energy
- South China Agricultural University
- Guangzhou 510642
- P. R. China
| | - Chonghui Chen
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture
- College of Materials and Energy
- South China Agricultural University
- Guangzhou 510642
- P. R. China
| | - Lingling Zheng
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture
- College of Materials and Energy
- South China Agricultural University
- Guangzhou 510642
- P. R. China
| | - Yingliang Liu
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture
- College of Materials and Energy
- South China Agricultural University
- Guangzhou 510642
- P. R. China
| | - Bingfu Lei
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture
- College of Materials and Energy
- South China Agricultural University
- Guangzhou 510642
- P. R. China
| | - Haoran Zhang
- Guangdong Provincial Engineering Technology Research Center for Optical Agriculture
- College of Materials and Energy
- South China Agricultural University
- Guangzhou 510642
- P. R. China
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5
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Kuwahara H, Sato Y, Kato H, Kobayashi M, Masaki T, Kakihana M. Effect of Site Occupancies on Deep-red Emission from Eu2+-activated Ca2SiO4 Phosphor. CHEM LETT 2016. [DOI: 10.1246/cl.151145] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hiroki Kuwahara
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
| | | | - Hideki Kato
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
| | - Makoto Kobayashi
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
| | | | - Masato Kakihana
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
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6
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Som S, Kumar V, Kumar V, Gohain M, Pandey A, Duvenhage MM, Terblans JJ, Bezuindenhoud BCB, Swart HC. Dopant distribution and influence of sonication temperature on the pure red light emission of mixed oxide phosphor for solid state lighting. ULTRASONICS SONOCHEMISTRY 2016; 28:79-89. [PMID: 26384886 DOI: 10.1016/j.ultsonch.2015.07.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 06/08/2015] [Accepted: 07/01/2015] [Indexed: 06/05/2023]
Abstract
In this study, europium doped yttrium gadolinium (Y1.4Gd0.5Eu0.1O3) mixed oxide phosphors were synthesized by a sonochemical method at different growth temperatures (50°C, 100°C, 150°C and 200°C) for pure red light emission applications. The compositional identification, presence of dopants and the distribution of doping materials in the crystal lattice was studied by TOF-SIMS. The formation and growth mechanisms in the sonochemical synthesis of Y1.4Gd0.5Eu0.1O3 nanophosphors are discussed in detail. Different spectral and Judd-Ofelt parameters were estimated from photoluminescence data. Optical gain and efficiency parameters were calculated with the variation of synthesis environment and an efficient synthesis method to make good red emitting phosphors for solid-state lighting and display applications were proposed.
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Affiliation(s)
- S Som
- Department of Physics, University of Free State, P.O. Box 339, Bloemfontein, ZA 9300, South Africa
| | - Vijay Kumar
- Department of Physics, University of Free State, P.O. Box 339, Bloemfontein, ZA 9300, South Africa.
| | - Vinod Kumar
- Department of Physics, University of Free State, P.O. Box 339, Bloemfontein, ZA 9300, South Africa
| | - Mukut Gohain
- Department of Chemistry, University of Free State, P.O. Box 339, Bloemfontein, ZA 9300, South Africa
| | - Anurag Pandey
- Department of Physics, University of Free State, P.O. Box 339, Bloemfontein, ZA 9300, South Africa
| | - M M Duvenhage
- Department of Physics, University of Free State, P.O. Box 339, Bloemfontein, ZA 9300, South Africa
| | - J J Terblans
- Department of Physics, University of Free State, P.O. Box 339, Bloemfontein, ZA 9300, South Africa
| | - B C B Bezuindenhoud
- Department of Chemistry, University of Free State, P.O. Box 339, Bloemfontein, ZA 9300, South Africa
| | - H C Swart
- Department of Physics, University of Free State, P.O. Box 339, Bloemfontein, ZA 9300, South Africa.
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7
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Sun W, Jia Y, Pang R, Li H, Ma T, Li D, Fu J, Zhang S, Jiang L, Li C. Sr9Mg(1.5)(PO4)7:Eu(2+): A Novel Broadband Orange-Yellow-Emitting Phosphor for Blue Light-Excited Warm White LEDs. ACS APPLIED MATERIALS & INTERFACES 2015; 7:25219-25226. [PMID: 26503633 DOI: 10.1021/acsami.5b06961] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A new orange-yellow-emitting Sr9Mg(1.5)(PO4)7:Eu(2+) phosphor was prepared via high-temperature solid-state reaction. The structure and optical properties of it were studied systematically. Sr9Mg(1.5)(PO4)7:Eu(2+) can be well-excited by 460 nm blue InGaN chips and exhibit a wide emission band covering from 470 to 850 nm with two main peaks centered at 523 and 620 nm, respectively, which originate from 5d-4f dipole-allowed transitions of Eu(2+) in different crystallographic sites. The sites attribution, concentration quenching, fluorescence decay analysis, and temperature-dependent luminescence properties were investigated in detail. Furthermore, a warm white LED device was fabricated by combining a 460 nm blue InGaN chip with the optimized orange-yellow-emitting Sr9Mg(1.5)(PO4)7:Eu(2+). The color coordinate, correlated color temperature and color rendering index of the fabricated LED device were (0.393, 0.352), 3437 K, and 86.07, respectively. Sr9Mg(1.5)(PO4)7:Eu(2+) has great potential to serve as an attractive candidate in the application of blue light-excited warm white LEDs.
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Affiliation(s)
- Wenzhi Sun
- State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Yonglei Jia
- State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Ran Pang
- State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
| | - Haifeng Li
- State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Tengfei Ma
- State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
| | - Da Li
- State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
| | - Jipeng Fu
- State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Su Zhang
- State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
| | - Lihong Jiang
- State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
| | - Chengyu Li
- State key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, People's Republic of China
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8
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Li K, Shang M, Lian H, Lin J. Photoluminescence Properties of Efficient Blue-Emitting Phosphor α-Ca1.65Sr0.35SiO4:Ce3+: Color Tuning via the Substitutions of Si by Al/Ga/B. Inorg Chem 2015; 54:7992-8002. [DOI: 10.1021/acs.inorgchem.5b01197] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kai Li
- State Key
Laboratory of Rare Earth Resource Utilization, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Mengmeng Shang
- State Key
Laboratory of Rare Earth Resource Utilization, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Hongzhou Lian
- State Key
Laboratory of Rare Earth Resource Utilization, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Jun Lin
- State Key
Laboratory of Rare Earth Resource Utilization, Changchun Institute
of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
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9
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Shahroosvand H, Zakavi S, Sousaraei A, Mohajerani E, Mahmoudi M. Unusual near-white electroluminescence of light emitting diodes based on saddle-shaped porphyrins. Dalton Trans 2015; 44:8364-8. [PMID: 25824962 DOI: 10.1039/c4dt03975k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In contrast to the red electroluminescence emission frequently observed in porphyrins based OLED devices, the present devices exhibit a nearly white emission with greenish yellow, yellowish green and blue green hues in the case of Fe(II)(TCPPBr6) (TCPPBr6 = β-hexabromo-meso-tetrakis-(4-phenyl carboxyl) porphyrinato), Zn(II)(TPPBr6) and Co(II)(TPPBr6), respectively.
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10
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Gong M, Xiang W, Huang J, Yin C, Liang X. Facile synthesis and optical properties of Ce:YAG polycrystalline ceramics with different SiO2 content. RSC Adv 2015. [DOI: 10.1039/c5ra15988a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
According to the FESEM micrographs of the as-prepared samples, they show the texture of polycrystalline materials and better uniformity appears in sample A.
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Affiliation(s)
- Maogao Gong
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou
- China
| | - Weidong Xiang
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou
- China
| | - Jun Huang
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou
- China
| | - Congfei Yin
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou
- China
| | - Xiaojuan Liang
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou
- China
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11
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Sato Y, Kuwahara H, Kato H, Kobayashi M, Masaki T, Kakihana M. Large Redshifts in Emission and Excitation from Eu<sup>2+</sup>-Activated Sr<sub>2</sub>SiO<sub>4</sub> and Ba<sub>2</sub>SiO<sub>4</sub> Phosphors Induced by Controlling Eu<sup>2+</sup> Occupancy on the Basis on Crystal-Site Engineering. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/opj.2015.511031] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Yu R, Zhong S, Xue N, Li H, Ma H. Synthesis, structure, and peculiar green emission of NaBaBO3:Ce3+ phosphors. Dalton Trans 2014; 43:10969-76. [DOI: 10.1039/c4dt00859f] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polycrystalline samples of Ce3+-doped NaBaBO3 (0.5–15 mol%) were prepared by the solid-phase synthesis.
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Affiliation(s)
- Ruijin Yu
- College of Science
- Northwest A&F University
- Yangling, P R China
| | - Shengliang Zhong
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022, China
| | - Na Xue
- College of Science
- Northwest A&F University
- Yangling, P R China
| | - Hongjuan Li
- College of Science
- Northwest A&F University
- Yangling, P R China
| | - Hailong Ma
- College of Science
- Northwest A&F University
- Yangling, P R China
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