1
|
Kaynar UH, Coban MB, Hakami J, Altowyan AS, Aydin H, Ayvacikli M, Can N. Enhanced luminescence of Eu 3+ in LaAl 2B 4O 10 via energy transfer from Dy 3+ doping. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 321:124711. [PMID: 38941750 DOI: 10.1016/j.saa.2024.124711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 06/07/2024] [Accepted: 06/24/2024] [Indexed: 06/30/2024]
Abstract
In this study, an investigation was conducted on the structural and photoluminescence (PL) characteristics of LaAl2B4O10 (LAB) phosphors initially incorporated with Dy3+ and Eu3+ ions. Subsequently, the impact of varying Eu3+ concentration while maintaining a constant Dy3+ concentration was examined. Structural characterization was performed using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and energy-dispersive X-ray spectroscopy (EDS). XRD analysis confirmed the effective embedding of both dopants into the hexagonal framework of the LAB. The PL emission spectra revealed characteristic emissions of Dy3+ (blue and yellow) and Eu3+ (red) ions. The optimized dopant concentrations of both Dy3+ and Eu3+ were observed to be 3 wt%. The dominant mechanism for concentration quenching in doped LAB phosphors was determined to be the electric dipole-dipole interaction. Co-doping with Eu3+ led to a substantial decrease in Dy3+ emission intensity (∼0.18-fold) while enhancing Eu3+ emission intensity (∼3.72-fold). The critical energy transfer distance (RC = 11.64 Å) and the analysis based on the Dexter theory confirmed that the energy transfer mechanism corresponds to dipole-dipole interaction. The color purities and correlated color temperatures (CCT) were estimated, suggesting the potential of these phosphors for warm white and red lighting applications, respectively. The observed energy transfer and luminescence properties, along with the structural and compositional characterization, highlight the promising potential of LAB:Dy3+/Eu3+ co-doped phosphors for advanced lighting and display technologies.
Collapse
Affiliation(s)
- U H Kaynar
- Bakırcay University, Faculty of Engineering and Architecture, Department of Fundamental Sciences, Menemen, Izmir, Turkiye; Bakırçay University, Biomedical Technologies Design Application and Research Center, Menemen, Izmir, Turkiye
| | - M B Coban
- Balikesir University, Faculty of Arts and Sciences, Department of Physics, Balikesir, Turkiye
| | - Jabir Hakami
- Jazan University, College of Science, Department of Physical Sciences, Physics Division, P.O. Box 114, 45142 Jazan, Saudi Arabia
| | - Abeer S Altowyan
- Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia.
| | - H Aydin
- Central Research Laboratories, Izmir, Katip Celebi University, Turkiye; Graphene Application&Research Center, Izmir, Katip Celebi University, Turkiye
| | - M Ayvacikli
- Manisa Celal Bayar University, Hasan Ferdi Turgutlu Technology Faculty, Mechatronics Engineering, Turgutlu-Manisa, Turkiye
| | - N Can
- Jazan University, College of Science, Department of Physical Sciences, Physics Division, P.O. Box 114, 45142 Jazan, Saudi Arabia; Nanotechnology Research Unit, College of Science, Jazan University, P.O. Box. 114, Jazan 45142, Saudi Arabia.
| |
Collapse
|
2
|
Liu S, Zhang B, Zhou Z, Zeng M, Tu D. Tunable photoluminescence in novel Ca2La1-Gd NbO6:Bi3+ double perovskite phosphor for the application of luminescent cement-based composite materials. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
3
|
Dwivedi A, Srivastava M, Srivastava A, Upadhyay C, Srivastava SK. Tunable photoluminescence and energy transfer of Eu 3+,Ho 3+-doped Ca 0.05Y 1.93-xO 2 nanophosphors for warm white LEDs applications. Sci Rep 2022; 12:5824. [PMID: 35388033 PMCID: PMC8986793 DOI: 10.1038/s41598-022-09630-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 02/28/2022] [Indexed: 11/18/2022] Open
Abstract
A series of Eu3+ ions doped Ca0.05Y1.93-xO3:0.02Ho3+ (CYO:Ho3+,xEu3+) nanophosphors having multicolour tuneability have been synthesised by following a simplistic solution combustion approach. The synthesised samples have been characterised by employing X-ray diffraction (XRD), Transmission electron microscope (TEM), and Fourier transforms infrared spectroscopy (FTIR). The optical properties have been engrossed by UV-visible and photoluminescent excitation and emission spectra, and decay lifetimes measurements. The characteristic emission, which occurs due to the f-f transition of Ho3+ and Eu3+ has been observed in emission spectra with excitation of 448 nm. By adjusting the doping ratio of Ho3+/Eu3+, the as-synthesized nanophosphor accomplishes multicolour tunability from green-yellow to red. Emission spectra and decay lifetime curve recommend dipole-dipole interaction causes energy transfer from Ho3+ → Eu3+. The energy transfer process from Ho3+ to Eu3+ has been confirmed through electric dipole-dipole interaction with critical distance 15.146 Å. Moreover, temperature dependent emission spectra show the high thermal stability with an activation energy ⁓ 0.21 eV, with the quantum efficiency of 83.6%. CIE coordinate illustrates that the singly doped Ho3+ and Eu3+ lie in the green and red region, respectively, while the as-synthesized CYO:Ho3+,xEu3+shows tunability from green to red with low CCT and high colour purity values. Hence, the CYO:Ho3+,xEu3+nanophosphor may be a near-UV excited multicolour colour-tunable pertinent candidate with potential prospects for multicolour- display and near-ultraviolet lighting applications.
Collapse
Affiliation(s)
- Arpita Dwivedi
- Department of Physics, Institute of Science, Banaras Hindu University (BHU), Varanasi, 221005, India
| | - Monika Srivastava
- School of Materials Science and Technology, Indian Institute of Technology (BHU), Varanasi, 221005, India
| | - Amit Srivastava
- Department of Physics, TDPG College, VBS Purvanchal University, Jaunpur, 222001, India
| | - Chandan Upadhyay
- School of Materials Science and Technology, Indian Institute of Technology (BHU), Varanasi, 221005, India
| | - Sanjay Kumar Srivastava
- Department of Physics, Institute of Science, Banaras Hindu University (BHU), Varanasi, 221005, India.
| |
Collapse
|
4
|
Tao C, Li P, Li Q, Zhang N, Wang D, Zhao J, Yang Z, Wang Z. Improvement of thermal stability and photoluminescence in Mg 2Y 2Al 2Si 2O 12:Ce 3+ by the cation substitution of Ca 2+, Sr 2+ and Ba 2+ ions. Dalton Trans 2021; 50:13138-13148. [PMID: 34581353 DOI: 10.1039/d1dt02336e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The luminescence of Ce3+ in Mg2Y2Al2Si2O12 (MgYAlSiO6) can be controlled by substituting with Ca2+, Sr2+, and Ba2+ ions. The materials show blue shifts in their emission spectra that become highly evident with the increase in the ionic radius, and this phenomenon is the result of the combined action of the nephelauxetic effect and crystal field splitting. Due to the introduction of Ca2+, Sr2+, and Ba2+, the distortion of the crystal decreases and the structural rigidity and stability increase, improving the quantum efficiency and temperature stability of Mg2Y1.93Al2Si2O12:0.07Ce3+. Mg2Y1.93Al2Si2O12:0.07Ce3+,Ca2+ is more stable than Mg2Y1.93Al2Si2O12:0.07Ce3+,Sr2+/Ba2+ because the radius of Sr2+/Ba2+ is larger than that of Mg2+. The Mg1.9Y1.93Al2Si2O12:0.07Ce3+,0.1Ca2+ fluorescent powder and blue chip were packaged to obtain warm white light-emitting diodes (LEDs) with luminous efficiency of 60 lm W-1. These results show that the Mg2Y2Al2Si2O12:Ce3+ phosphor has potential application value in white LEDs.
Collapse
Affiliation(s)
- Chunjing Tao
- National-Local Joint Engineering Laboratory of New Energy Photoelectric Devices, Hebei Key Laboratory of Optic-electronic Information and Materials, College of Physics Science & Technology, Hebei University, Baoding 071002, China
| | - Panlai Li
- National-Local Joint Engineering Laboratory of New Energy Photoelectric Devices, Hebei Key Laboratory of Optic-electronic Information and Materials, College of Physics Science & Technology, Hebei University, Baoding 071002, China
| | - Qinshan Li
- National-Local Joint Engineering Laboratory of New Energy Photoelectric Devices, Hebei Key Laboratory of Optic-electronic Information and Materials, College of Physics Science & Technology, Hebei University, Baoding 071002, China
| | - Nan Zhang
- National-Local Joint Engineering Laboratory of New Energy Photoelectric Devices, Hebei Key Laboratory of Optic-electronic Information and Materials, College of Physics Science & Technology, Hebei University, Baoding 071002, China
| | - Dawei Wang
- Hebei Key Laboratory of Semiconductor Lighting and Display Critical Materials, Baoding, 071000, China
| | - Jinxin Zhao
- Hebei Key Laboratory of Semiconductor Lighting and Display Critical Materials, Baoding, 071000, China
| | - Zhiping Yang
- National-Local Joint Engineering Laboratory of New Energy Photoelectric Devices, Hebei Key Laboratory of Optic-electronic Information and Materials, College of Physics Science & Technology, Hebei University, Baoding 071002, China
| | - Zhijun Wang
- National-Local Joint Engineering Laboratory of New Energy Photoelectric Devices, Hebei Key Laboratory of Optic-electronic Information and Materials, College of Physics Science & Technology, Hebei University, Baoding 071002, China
| |
Collapse
|
5
|
Shen B, Xu J, Mao Q, Zhong J. Enhanced luminescence properties of Ca1+xSr2−xAl2O6:Eu3+ (0 ≤ x ≤ 1) red phosphors based on composition modulation. RSC Adv 2021. [DOI: 10.1039/d1ra01291f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of Ca1+xSr2−xAl2O6:Eu3+ (0 ≤ x ≤ 1) red-emitting phosphors with adjustable optical properties and excellent quantum efficiency was developed for potential applications in warm WLEDs.
Collapse
Affiliation(s)
- Biao Shen
- College of Materials and Environmental Engineering
- Hangzhou Dianzi University
- Hangzhou 310018
- China
| | - Jianghang Xu
- College of Materials and Environmental Engineering
- Hangzhou Dianzi University
- Hangzhou 310018
- China
| | - Qinan Mao
- College of Materials and Environmental Engineering
- Hangzhou Dianzi University
- Hangzhou 310018
- China
| | - Jiasong Zhong
- College of Materials and Environmental Engineering
- Hangzhou Dianzi University
- Hangzhou 310018
- China
| |
Collapse
|
6
|
Zheng M, Wang Z, Wang X, Cui J, Yao Y, Zhang M, Yang Z, Cao L, Li P. Recent progress of effect of crystal structure on luminescence properties of Ce 3+–Eu 2+ Co-doped phosphors. RSC Adv 2021; 11:26354-26367. [PMID: 35479467 PMCID: PMC9037332 DOI: 10.1039/d1ra04700k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 07/20/2021] [Indexed: 12/25/2022] Open
Abstract
Currently, the mechanism of Ce3+–Eu2+ ET is frequently used to obtain color adjustable or white phosphors. Correspondingly, the ET efficiency from Ce3+ to Eu2+ becomes an important indication of the luminescent properties of phosphors. However, the ET efficiency calculated using the formula does not always match the emission spectra; the transmission efficiency of Ce3+ is high, but the emission efficiency of Eu2+ is low, depending on our investigation results. In addition to this problem, here we mainly review, on the basis of substantial examples, how to boost the actual ET efficiency of Ce3+-to-Eu2+ and thus to improve the luminescent properties of phosphors through the rational design of layered crystal structure and the way of selective occupation of activator ions. Moreover, the possible physical mechanisms are proposed. Effect of crystal structure on luminescence properties of Ce3+–Eu2+ co-doped phosphors.![]()
Collapse
Affiliation(s)
- Mingjie Zheng
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
| | - Zhijun Wang
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
| | - Xuejiao Wang
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
| | - Jia Cui
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
| | - Yao Yao
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
| | - Mengya Zhang
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
| | - Zhibin Yang
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
| | - Lingwei Cao
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
| | - Panlai Li
- College of Physics Science & Technology
- Hebei Key Lab of Optic-Electronic Information and Materials
- Hebei University
- Baoding 071002
- China
| |
Collapse
|