Article
Chemistry, Multidisciplinary
Aixia Deng, Zilong Wang, Xufeng Zhou, Wanying Geng
Summary: A novel apatite-based phosphor MgGd4Si3O13:Ce3+, Mn2+ was successfully synthesized and its potential application as a dual-excitation luminescent ratiometric thermometer was studied. The experiment showed that the fluorescent intensity ratio of Ce3+ and Mn2+ was linearly correlated with temperature in a specific range, indicating its high sensitivity as a thermometer.
Article
Optics
Aleksandra Pilch-Wr, Karolina Ledwa, Agata Kotulska, Artur Bednarkiewicz
Summary: In this study, Yb^3+ and Tm^3+ doped NaYF4 nanoparticles codoped with optically active Ce^3+ ions were synthesized and investigated. The relative emission intensity ratios of the nanoparticles were found to be significantly dependent on external stimuli such as temperature and excitation pulse length. The results showed potential applications for tuning emission and thermal properties in practical uses.
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Yuming Gong, Yujun Liang, Shiqi Liu, Haoran Li, Yanying Bi, Qiangke Wang, Yi Dou
Summary: The study focused on developing composite phosphors of CYPO:Ce3+,Mn2+/g-C3N4 with different proportions for highly sensitive optical-temperature measurement. Through X-ray powder diffraction and fluorescence spectroscopy, it was found that the composite phosphors exhibited better temperature-dependent properties compared to pure CYPO:Ce3+,Mn2+. The maximum absolute and relative sensitivities of the designed composite phosphors were determined based on FIR technology, providing a feasible idea for versatile applications in optical-temperature measurement.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Applied
Jindi Wang, Riyan Su, Min Cui, Mengmeng Shang
Summary: Tri-doped Ca9LiY2/3(PO4)(7):Ce3+,Tb3+,Mn2+ phosphors exhibit tunable emission properties, with Ce3+ and Tb3+ co-doped samples ranging from bluish violet to green, and the addition of Mn2+ ions forming red emission components for warm white light. The emission intensity of the phosphors remains relatively stable at high temperatures and after multiple thermal cycles.
JOURNAL OF RARE EARTHS
(2021)
Article
Chemistry, Multidisciplinary
Xiaolong Li, Yaru Pei, Ruimei Liang, Chao Qian, Jinzeng Wang
Summary: In this study, Mn2+/Ln(3+)-doped NaGdF4:Ce nanoparticles with subtly tuned multicolor output were successfully synthesized. The nanoparticles exhibited blue, green, and red emission bands in the visible region due to effective energy transfer between Ce3+ and Mn2+/Ln(3+). White emission was achieved through resonance-type energy transfer with suitable doping ratios of Ce3+, Dy3+, and Eu3+. These nanoparticles show potential applications in white-light emitters, full-color displays, and photonic devices.
Article
Materials Science, Multidisciplinary
Jin Zhao, Xin Wang, Qing Pang, Aiping Zhang
Summary: The Ba3Y(BO3)(3): Ce3+, Nd3+ phosphor with NIR emission can improve the efficiency of silicon solar cells by transferring sunlight to the optimal response range of the cells. Ce3+ acts as an efficient sensitizer with broad absorption cross-section, making it a promising application for solar spectral conversion in silicon-based solar cells.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Inorganic & Nuclear
Jia Zhang, Songsong An, Yuqing Pei, Yining Zhang, Jiajun Chen
Summary: Mechanoluminescence materials, such as MCP phosphors, with tunable emissions have potential applications but their mechanism is not fully understood. By fabricating Eu2+/Mn2+/Ce3+-activated MCP phosphors, researchers obtained intense blue and weak red mechanoluminescence. The position of excited energy levels and traps play a crucial role in determining the ML efficiency. The concentration-dependent ML in MCP:Eu2+,Mn2+-based devices opens up possibilities for visualized multimode anti-counterfeiting.
INORGANIC CHEMISTRY
(2023)
Article
Optics
Lingling Sun, Huizhong Ma, Liwei Wang, Minqiang Xu, Jun Liu
Summary: Eu2+/Ce3+/Mn2+-doped Y2Mg2Al2Si2O12 phosphors were synthesized and investigated for their luminescence characteristics and energy transfer processes. The phosphors exhibited tunable luminescence and were capable of generating white lights with different correlated color temperatures.
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Multidisciplinary
Zhipeng Wang, Zhijun Wang, Yuebin Li, Jinjin Liu, Qi Bao, Xiangyu Meng, Keliang Qiu, Zhiping Yang, Dawei Wang, Panlai Li
Summary: This study improved the composition of the phosphor to enhance the red component while increasing the spectral intensity and quantum efficiency, and also improved the thermal stability of the crystal, showing great potential for application in white LEDs.
Article
Materials Science, Multidisciplinary
Lu Zheng, Biao Zheng, Haiping Xia, Jun Wang, Hongwei Song, Baojiu Chen
Summary: This study reported the tunable-color emission properties of Ce3+/Eu3+ in NaY9Si6O26 phosphors, including the energy transfer mechanism and temperature-dependent emission spectra analysis, showing promising potential for optical thermometer applications.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Materials Science, Multidisciplinary
Xiaoli Li, Yonglei Feng, Liwei Wang, Xianke Sun
Summary: This study investigates the potential application of Bi3+/Mn2+ doped Ba9La2Si6O24 phosphors in light-emitting diodes. The synthesized phosphors exhibit a single phase and absorption to ultraviolet light. The energy transfer between Bi3+ and Mn2+ ions allows for tunable luminescence. The Ba9La2Si6O24:0.03Bi(3+)/0.02Mn(2+) and Ba9La2Si6O24:0.03Bi(3+)/0.03Mn(2+) phosphors can generate white light under ultraviolet light excitation.
Article
Chemistry, Applied
Yijun Yu, Yi Chen, Liang Chen, Yuyu Shen, Xiao Liu, Degang Deng, Shiqing Xu
Summary: A series of Eu2+ doped and Eu2+/Mn2+ co-doped MSAON phosphors were synthesized at 1500 degrees C, showing high quantum yield and efficient energy transfer process. The emission color could be tuned from blue to red by adjusting the concentration of Mn2+ ions, with potential application in n-UV WLEDs.
JOURNAL OF RARE EARTHS
(2021)
Article
Materials Science, Multidisciplinary
Qianqian Zhang, Guogang Li, Peipei Dang, Dongjie Liu, Dayu Huang, Hongzhou Lian, Jun Lin
Summary: An efficient broadband NIR-emitting Ca2YHf2Al3O12:Cr3+ (CYHA:Cr3+) garnet phosphor has been successfully developed, demonstrating promising potential in NIR pc-LED applications through strategies such as energy transfers to improve its photoluminescence properties.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Optics
Ye Jiang, Chao Chen, Bingcheng Yu, Qinling Li, Zhong Niu, Xinyi Cai, Yuepin Zhang
Summary: Oxyfluoride glass with Na5Y9F32:Ce3+/Dy3+ nanocrystals were successfully fabricated and dispersed in the glass matrix. The color tunable emission could be achieved by adjusting the concentration of Dy3+ ions. The energy transfer from Ce3+ to Dy3+ ions was confirmed, and the fluorescence intensity ratio (FIR) showed high sensitivity to temperature, indicating the potential of Na5Y9F32:Ce3+/Dy3+ glass ceramics as ideal materials in color tunable luminescence and temperature sensors.
JOURNAL OF LUMINESCENCE
(2023)
Article
Optics
Ge Zhang, Yuan Yin, Yaoan Wang, Shuaishuai Yu, Jia Zhang, Junxiao Wu, Tianli Wang, Lei Zhao, Yanyan Li, Wenjie Wang
Summary: The study successfully synthesized Ce3+-Mn2+ co-doped NCSO phosphors, which exhibit blue-red dual emission under excitation of 336 nm and may have potential applications in plant growth lighting.
JOURNAL OF LUMINESCENCE
(2021)
Article
Engineering, Environmental
Peilan Luo, Menglin Ye, Wenli Zhou, Pingping Wan, Zhongyun Ma, Zhongxian Qiu, Jilin Zhang, Ru-Shi Liu, Shixun Lian
Summary: This study proposes the construction of an impermeable dual-shell on Mn4+-doped fluoride materials to improve their stability. The dual-shell can optimize internal quantum efficiency and significantly enhance water stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Ceramics
Mengfang Chen, Shuzhen Liao, Yue Han, Shixun Lian, Jilin Zhang
Summary: This study reports a blue-emitting phosphor Na2MgSiO4:Ce3+ where Ce3+ occupies the Na+ sites, showing tunable emission color characteristics. The relationship between crystal structure and luminescent properties was studied through structural refinement and in-depth luminescent studies. The phosphor with proper Ce3+ content exhibited a high absolute quantum efficiency of 86.0% and acceptable thermal stability. The pc-wLED made of 365 nm UV chip, Na2MgSiO4:Ce3+,Li+, and commercial green and red phosphors showed good performance with a color rendering index of 93.3.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Shujuan Zhao, Shuzhen Liao, Zhongxian Qiu, Shixun Lian, Jilin Zhang
Summary: Full-spectrum lighting is important for human eyes' health and has gained increasing attention. Phosphor-converted white light-emitting diodes (pc-wLEDs) for illumination require phosphors with broadband emission, especially in the cyan-emitting region. This study compares the structure and luminescent properties of NaCaPO4:Eu2+ and Na2CaPO4F:Eu2+ phosphors. Na2CaPO4F:Eu2+ exhibits a broader emission band than NaCaPO4:Eu2+ due to more crystallographic sites for Eu(2+) ion. The NaCaPO4:Eu2+ phosphors have better thermal stability and higher internal quantum efficiency. The pcwLEDs based on these phosphors show potential as green-emitting components for achieving full-spectrum illumination.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Environmental
Yuanyuan Liang, Quantian Cao, Yiqing Zhou, Wenli Zhou, Jilin Zhang, Liping Yu, Shixun Lian, Zhongxian Qiu
Summary: Phosphor-converted materials offer promising solutions for overcoming sunlight limitations in horticulture and agriculture. This study presents Tb0.7La0.3ZnAl11O19:Cr3+ (TLZA:Cr3+) as a highly efficient phosphor, capable of converting near-ultraviolet and green light to far-red light. Utilizing TLZA:6%Cr3+ phosphor, pc-LED devices were fabricated to optimize the action spectrum for indoor plant growth, while TLZA:6%Cr3+ luminescent film laminated glass (LFLG) adjusted the solar spectrum for outdoor horticultural greenhouses, promoting plant growth. The findings highlight TLZA:6%Cr3+ phosphor as an excellent spectral control tool for indoor and outdoor plant lighting.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Shujuan Zhao, Shuzhen Liao, Rou Shi, Jilin Zhang, Yue Han, Shixun Lian
Summary: In this study, the emission spectrum of a Eu2+-activated phosphor system was effectively adjusted using phase segregation, resulting in a variation of emission color from red to cyan. Phase segregation improves the stability of the phosphor and shows potential applications in phosphor-converted LEDs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Jiaqi Fan, Weiying Zhou, Jilin Zhang, Peichan Chen, Qi Pang, Liya Zhou, Chunyan Zhou, Xinguo Zhang
Summary: In this study, LiGaGe2O6 was used as a host material for Cr3+ doping, resulting in a highly efficient and tunable broadband near-infrared phosphor. Spectral tuning and enhancement of the external quantum efficiency were achieved through Sc3+ substitution. This work provides insights into the development of novel high-performance NIR phosphors for pc-LEDs.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Weiying Zhou, Jiaqi Fan, Jiabao Luo, Jiahui Wu, Rongda Zhang, Jilin Zhang, Qi Pang, Liya Zhou, Tingting Zhang, Xinguo Zhang
Summary: A novel whitlockite-structure red-emitting phosphor host, Sr9(Mg0.5Mn0.5)K(PO4)7, is designed and synthesized successfully. The compound exhibits compact Eu2+-Mn2+ distance and large intra-Mn2+ distance, facilitating efficient Eu2+-Mn2+ energy transfer. By Eu2+ sensitization and La3+ substitution, the phosphor shows enhanced red emission and improved quantum efficiency. The fabricated white phosphor-converted LEDs device exhibits bright warm white light with high color rendering Properties and luminous efficacy.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Materials Science, Ceramics
Xiaofang Wang, Chu Wu, Xiangwei Kong, En Tang, Linchao Xu, Fan Ding, Xiuying Tian, Zhongxian Qiu, Shixun Lian
Summary: With an efficient surface modification strategy, a core-shell ZnS:KBr, Mn2+@CaZnOS (ZKM@CaZnOS) composite phosphor was constructed, where a uniform thin layer of Ca(OH)2 first deposited on the ZKM particles, followed by a controllable combination reaction on the surface to generate an intimate layer of CaZnOS. The inert shell acts as a protection layer to greatly enhance the UV-resistance of the ZKM phosphor. After 45 days of UV irradiation, the ZKM@CaZnOS maintained over 90% of the initial luminescent intensity, while the starting ZKM remained about 50%. The modified ZKM@CaZnOS phosphors show promising application in portable UV resolvable anti-counterfeiting.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Fan Ding, Yiqing Zhou, Yue He, Yuanyuan Liang, Peilan Luo, Wenli Zhou, Jilin Zhang, Liping Yu, Zhongxian Qiu, Shixun Lian
Summary: In this study, Eu3+ single-doped LaAl1-yGayO3 solid solutions and Eu3+,Mn4+ codoped LaAl0.7Ga0.3O3 phosphors were designed and synthesized to achieve broadband ultraviolet excitation and red/far-red emission for enhancing photosynthesis in plants. The LAG:Eu3+ phosphor exhibited strong CTB excitation and characteristic red emission, similar to Eu3+-organic ligand compound. The LAG:Eu,Mn phosphor showed dual-band excitation and emission, and when coated on luminous laminated glasses, it significantly increased the radiant intensity in the red/far-red region under sunlight, indicating its potential for solar spectral conversion in plant cultivation.
INORGANIC CHEMISTRY
(2023)
Article
Materials Science, Ceramics
Shuzhen Liao, Ao Song, Jilin Zhang, Xin Fu, Kai Zhang
Summary: Eu2+-activated nepheline, NaAlSiO4:Eu2+, with tunable emission from cyan to yellow region, was successfully synthesized in this study. The emission band can be adjusted by changing synthetic conditions without affecting crystal structure. Results show that using H3BO3 as flux, increasing synthetic temperature and Eu2+ content favor efficient yellow emission. The as-synthesized phosphors exhibit high quantum efficiencies and excellent thermal stability, making them suitable for white pc-LED applications.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Song Li, ZhenZhen Zhang, Jilin Zhang, Jiayu Wu, Zhongxian Qiu, Mikhail G. Brik, Shixun Lian
Summary: This study focuses on the relationship between luminescence performance and spatial structure and symmetry of Mn2+ doping site in ABP(2)O(7):Mn2+ (A = Ba/Sr; B = Mg/Zn) phosphors. It proposes the concept of isolated coordination polyhedral confinement to clarify the luminescence performance of Mn2+ in the fivefold coordination configuration with different geometries, which has great theoretical research significance for designing inorganic phosphors.
INORGANIC CHEMISTRY
(2023)
Article
Optics
Xiao Zhao, Shuailong Shen, Lu Gan, Jilin Zhang, Wenli Zhou, Liping Yu, Shixun Lian
Summary: All inorganic perovskite quantum dots (QDs) were successfully synthesized in tellurite germanate glass by high-temperature melt-quenching combined with in-situ crystallization. The introduction of P2O5 in the glass network increased the [TeO4]/[TeO3] units ratio, resulting in a more compact glass network and changing the growth environment of QDs. The regulation from Cs4PbBr6 to CsPbBr3 was achieved by increasing the content of nucleating agent P2O5, accompanied by a blue-shifted emission peak and good long-term stability. The synthesized QDs glasses show great potential in the application of white light emitting diodes.
JOURNAL OF LUMINESCENCE
(2023)
Article
Materials Science, Multidisciplinary
Mengfang Chen, Shuzhen Liao, Yue Han, Zhongxian Qiu, Shixun Lian, Jilin Zhang
Summary: Efficient cyan-emitting phosphor with anti-thermal quenching behavior is achieved through structural modulation and codoping Mg2+ and Ge4+. The introduction of Mg2+ dominates the redshift while Ge4+ enhances the emission. This work presents a paradigm for exploring highly efficient and thermally stable phosphors.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Yuhang Kuang, Yunjia Li, Borui Chen, Shujuan Zhao, Mengfang Chen, Shixun Lian, Jilin Zhang
Summary: In this paper, a series of blue-emitting K-beta-alumina phosphors K0.90-xSrxAl11O17+d:0.2Eu(2+) were successfully synthesized by introducing Sr2+ to partially replace K+ ions. The introduction of Sr2+ improved the internal and external quantum efficiencies to 92.4 and 73.4%, respectively, for x = 0.06. Additionally, the anti-thermal quenching properties of the original phosphor (without Sr2+) were successfully regulated to zero thermal quenching within 150 degrees C by partially replacing K+ with Sr2+.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
