Article
Spectroscopy
Jiacheng Gong, Wenqin Luo, Weirong Lan, Xi Chen, Haiyan Wu
Summary: Sr3LiSbO6 phosphors were prepared using high temperature solid state reaction and characterized for their crystal structure, morphology, and optical properties. Doping with Gd3+ ions was found to significantly enhance the photoluminescence intensity and internal quantum efficiency of Sr3LiSbO6. The study also investigated the effects of Gd3+ doping on the photoluminescence lifetimes and thermal quenching properties of Sr3LiSbO6.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Applied
Yu Wang, Baokui Zhao, Bin Deng, Shanshan Chen, Yuanyuan Liu, Guodong Wang, Ruijin Yu
Summary: Gd2InSbO7:Eu3+ red phosphors were successfully synthesized and exhibited good luminescence properties, showing potential applications in white LEDs.
JOURNAL OF RARE EARTHS
(2021)
Article
Engineering, Electrical & Electronic
Jiachen Lu, Shuo Liu, Yi Zhu, Kaiyang Li, Zhuo Chen, Xinhe Chen, Jiajie Yao, Lianjiang Tan, Quan Liu, Bo Wei
Summary: ZnGa2-xO4:xCr(3+) phosphors with blue-red dual light emission were synthesized and characterized. The results showed successful achievement of dual light emission around 470 nm and 690 nm. The study also demonstrated the potential application of the phosphors in plant cultivation.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Ceramics
Yan Xie, Xue Geng, Yuan Wang, Jiang Guo, Yuhui Lu, Qiuyi Lv, Zhijiang Ma, Dan Zhang, Jin Zhao, Bin Deng, Ruijin Yu
Summary: Efficient far-red light phosphors based on Mn4+-doped inorganic luminescence materials were synthesized by codoping alkali metal ions (Li+, Na+, and K+). Optimization of doping concentration and sintering temperature improved luminescent intensity, with high internal quantum efficiencies achieved. These phosphors show promise for use in plant cultivation LEDs due to their excellent optical stability and long lifetime.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
Anqi Zhang, Zhen Sun, Mochen Jia, Zuoling Fu, Byung Chun Choi, Jung Hyun Jeong, Sung Heum Park
Summary: This study investigated the properties of Sm3+-activated niobate double-perovskite orange-red emitting phosphors prepared by solid-state reaction, including their crystal structure, luminescent properties, thermal stability, and temperature sensing characteristics. The results showed that the phosphors have potential applications in lasers and LED devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Fangyi Zhao, Zhen Song, Quanlin Liu
Summary: Cr3+-activated far-red and near-infrared phosphors with adjustable emission wavelengths have wide applications. In this study, Cr3+-doped phosphors with beta-Ca-3(PO4)(2)-type structure were reported, and Ca9Ga(PO4)(7):Cr3+ showed the highest far-red emission intensity. The phosphors exhibited a broad emission band ranging from 650 to 850 nm, with a peak at 735 nm. The optimal sample had a high internal quantum efficiency and excellent luminescence thermal stability. A phosphor-conversion light-emitting diode was also fabricated, indicating potential applications in indoor plant cultivation.
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
(2022)
Review
Chemistry, Physical
Shuangqiang Fang, Tianchun Lang, Mingsheng Cai, Tao Han
Summary: This review provides an overview of the recent progress in plant lighting phosphors, including their structure, excitation and emission wavelengths, and photoluminescence efficiency. A quantitative method is proposed to calculate the similarity between the emission spectra of phosphors and the absorption spectra of plant photoreceptors. The remaining challenges in this field are discussed, and perspectives for further investigations are presented.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Optics
Xinhua Liu, Qiying Huang, Peiqing Cai, Hong Zhao, Zhijing Hu, Lingyi Lu, Zihang Zhu, Xipeng Pu, Xiangfu Wang, Qi Ai, Mingjie Wan, Junjie Si, Xin Yao, Zugang Liu
Summary: Non-rare earth Mn4+-doped oxide matrix phosphors have attracted increasing interest in the field of light-emitting diodes due to their excellent spectral properties. In this study, Mn4+-doped Mg2ScSbO6 phosphor was successfully synthesized and its crystal structure was determined using X-ray powder diffraction and Rietveld refinement analysis. The phosphor exhibited broadband absorption from near ultraviolet to blue light and deep red emission at approximately 682 nm. The photoluminescence intensity and decay lifetime of the phosphor were found to be strongly dependent on temperature, and the results of quenching analysis were reported. The optimized Mg2ScSbO6:Mn4+ phosphor exhibited high color purity of 99.4% and an internal quantum efficiency value of 61.93% modulated by charge compensation of Li+ ions. The photoluminescence peak position of the phosphor was well matched with the absorption peak of red and far-red phytochrome. Therefore, deep-red-emitting phosphors have great application potential in plant growth.
JOURNAL OF LUMINESCENCE
(2023)
Article
Materials Science, Ceramics
Kang Cheng, Yamin Xu, Xinyue Liu, Juling Long, Weichao Huang, Chaoyong Deng
Summary: A novel far-red phosphor Li2ZnTi3O8:Cr3+ was successfully synthesized via the conventional solid-state method. The structural characteristics, luminescence properties and concentration quenching of the Li2ZnTi3O8:Cr3+ phosphors were systematically investigated. The phosphors display emission spectra in the range from 600 nm to 850 nm under excitation at 360 nm and 468 nm, with a far-red emission centered at 735 nm attributed to the spin-forbidden 2E -> 4A2 transition of Cr3+ ions. The research results indicate the prospective applications of Li2ZnTi3O8:Cr3+ phosphors in indoor plant cultivation.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Wen Liu, Dan Zhao, Rui-Juan Zhang, Lei Jia, Li-Na Zhang, Lin-Ying Shi
Summary: In this study, Mn4+ doped BaLaLiTe1-xO6:xMn(4+) phosphors were prepared and their emitting spectra were found to be absorbed by chlorophyll or phytochrome of plants. By optimizing the Mn4+ concentration to 0.01, the phosphors achieved high quantum efficiency and exhibited good thermostability. These findings suggest the potential application of BLLT:0.01Mn(4+) phosphors for plant growth LED.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Robert Tomala, Krzysztof Korkus, Vitalii Boiko, Dariusz Hreniak, Pawel Gluchowski
Summary: Changing the Ga:Al ratio modulates the energy gap and modifies the spectroscopic properties of the phosphors. The stabilization of the Gd3Ga5O12 garnet structure by Al3+ ions widens the energy gap. Increasing Ga content leads to a decrease in the energy gap, affecting the interaction between oxygen ligands and luminescent ions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Dan Zhao, Ya-Nan Li, Rui-Juan Zhang, Bao-Zhong Liu, Qing-Xia Yao
Summary: A new antimonate phosphor (Sr1-yCay)(2)Sb2O7:Bi3+ was successfully prepared with controllable color emitting properties from greenish to blue. The study revealed that increasing Ca constituents led to a blue-shift in emitting bands and measured the internal quantum efficiency of different phosphors. Furthermore, a white illuminating lamp was produced using a combination of UV chip, blue phosphor, greenish phosphor, and red phosphor.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Materials Science, Ceramics
Heng Dai, Shanshan Li, Zhuowei Li, Jiankun Li, Shuangyu Xin, Chuang Wang, Ge Zhu, Bin Dong
Summary: An efficient and ultra-broadband red phosphor CMPO:Mn2+ was synthesized for indoor plant growth LEDs. The structure and photoluminescence properties were investigated, and the potential application of CMPO:Mn2+ was discussed.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Editorial Material
Optics
Cyrille Richard, Bruno Viana
Summary: This article reviews the mechanisms of persistent luminescence of trivalent lanthanides in wide bandgap fluoride or phosphate hosts after charging by X-rays, and envisions the potential applications.
LIGHT-SCIENCE & APPLICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Hongping Ma, Shixu Tao, Youjie Hua, Jun Zheng, Luyi Lou, Yiheng Ping, Peng Qiao
Summary: The developed (Ba1-x-yCax)AlSi5O2N7:yEu(2+) phosphors show great potential in LED applications, with enhanced crystallinity and luminescence intensity achieved through some amount of Ca2+ substitution, reaching the highest luminescence intensity when the Eu2+ concentration is at 0.06.
DALTON TRANSACTIONS
(2021)
Article
Optics
Sichun Li, Jiang Guo, Wen Shi, Xiaopeng Hu, Shanshan Chen, Junmeng Luo, Yuxin Li, Jiayun Kong, Junzhi Che, Haiqiang Wang, Bin Deng, Ruijin Yu
Summary: LaNb2VO9:Dy3+ yellow phosphors were successfully synthesized by high-temperature solid-state method, with detailed studies on their luminescent properties, structure, and color purity. LaNb2VO9:0.1Dy3+ phosphors exhibit strong yellow light emission under excitation, and can effectively visualize latent fingerprints and lip prints. The research demonstrates the potential application of LaNb2VO9:Dy3+ phosphors in forensic detection.
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Li Zhou, Lu Liu, Ruiqi Yang, Jiayun Kong, Yuxin Li, Yixuan Zhao, Yufeng Du, Changlin Li, Zhequan Zou, Bin Deng, Ruijin Yu
Summary: Dy3+ doped tungstate CaGdSbWO8 (CGSW) phosphors were synthesized using a high-temperature solid-state reaction and their properties were systematically studied. The phosphors demonstrated a wide excitation range and emitted various colors attributed to different energy level transitions of Dy3+ ions. The concentration quenching behavior and thermal stability of the phosphors were also investigated. The optimized phosphor showed high emission intensity at typical operating temperature of LEDs, and the fabricated white LED exhibited high color rendering index and near-standard white coordinates.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Yuxin Li, Changlin Li, Jiayun Kong, Haoran Su, Li Zhou, Ruiqi Yang, Yufan Shang, Chaoyue Wang, Jingjing Lian, Gongguo Zhang, Ruijin Yu
Summary: Novel double perovskite Sr2InTaO6:Sm3+ phosphors were synthesized and their phase purity, luminescent properties, and thermal stability were investigated. Under 407 nm excitation, the phosphors exhibited four emission peaks at 565, 603, 649, and 717 nm. The optimal doping concentration was determined to be 5 mol%. The prepared phosphors showed high color stability and excellent thermal stability. The WLED fabricated with the phosphors had a low correlation color temperature and a high color rendering index, indicating promising application prospects.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Li Zhou, Haoran Su, Changlin Li, Ruiqi Yang, Yufan Shang, Chaoyue Wang, Jingjing Lian, Shouan Xie, Xiaohui Ji, Ruijin Yu
Summary: This research synthesized a series of NaGdMg-TeO6:xSm3+ phosphors with a double perovskite structure using solid-state reaction methods. The crystal structure, phase purity, photoluminescence properties, concentration quenching mechanism, color purity, thermal stability, and inner quantum efficiency of the samples were systematically studied. The NaGdMgTeO6:Sm3+ phosphors exhibited strong red emission at 648 nm under 405 nm excitation, with the optimal luminescence intensity achieved at a dopant concentration of 1 mol%. The phosphors showed high color purity, thermal stability, and activation energy. The fabricated red LED showed superior spectral matching with Phytochrome Pr, and the w-LED had a high color rendering index and a suitable correlated color temperature. These phosphors have potential applications in plant growth LEDs and w-LEDs.
CERAMICS INTERNATIONAL
(2023)
Article
Agriculture, Multidisciplinary
Ruiyuan Liu, Zhuangzhuang Li, Sifan Liu, Jinshuo Zheng, PanPan Zhu, Bin Cheng, Ruijin Yu, Huiling Geng
Summary: A series of simple diarylhydrazide derivatives were designed, prepared, and screened for their antifungal activities. The most active compound, 2c, showed significant activity against various plant pathogens in vitro and in vivo. Furthermore, 2c demonstrated no toxicity towards cowpea seed germination and normal human hepatocytes.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Chemistry, Physical
Yuxin Li, Jiayun Kong, Changlin Li, Haoran Su, Yufeng Du, Li Zhou, Zhequan Zou, Bin Deng, Xiaohui Ji, Ruijin Yu
Summary: This study systematically investigated the phase purity, luminescent properties, and thermal stability of GdNb2VO9:Eu3+ phosphors synthesized via high-temperature solid-state reaction. The phosphors exhibited a broad absorption band attributed to O2--*Eu3+ and O2--*V5+ charge transfers, as evidenced by monitoring the emission peak at 619 nm. Under 306 nm excitation, GdNb2VO9:5 mol%Eu3+ phosphor showed four emission peaks corresponding to electron transitions from 5D0 to 7F1, 7F2, 7F3, and 7F4, respectively. The best doping concentration was determined to be 5 mol% Eu3+. The GdNb2VO9:Eu3+ phosphors exhibited high color stability with chromaticity coordinates in the red region. They also displayed abnormal thermal quenching behavior and excellent thermal stability. Furthermore, GdNb2VO9:Eu3+ phosphors were successfully applied in visualizing latent fingerprints and producing security ink for anti-counterfeit labels and data encryption. A prepared white light emitting diode (WLED) using these phosphors showed a good color rendering index and CIE coordinates. Therefore, GdNb2VO9:Eu3+ phosphors possess excellent luminescent properties and broad application prospects.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Xiaopeng Hu, Anlin Zhang, Rong Tang, Xiaoyue Jin, Junzhi Che, Xuan Ouyang, Chang Zhou, Lianwu Xie, Bin Deng, Ruijin Yu
Summary: A series of reddish-orange emitting CINO:Sm3+ phosphors were synthesized for w-LEDs, showing high emission intensity and temperature-dependent enhancement. The w-LEDs exhibited good color rendering index and color temperature.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Xuan Ouyang, Ruiyuan Liu, Xiaopeng Hu, Ju Li, Rong Tang, Xiaoyue Jin, Shigao Chen, Xuemei Yao, Bin Deng, Huiling Geng, Ruijin Yu
Summary: Eu3+-doped Ca2InTaO6 phosphors were synthesized and characterized for their crystal structure, composition, phase purity, photoluminescence properties, and thermal quenching mechanism. The Ca2InTaO6 lattice showed an orthorhombic structure and exhibited red emission at 613 nm when excited at 395 nm. The optimal doping concentration was found to be x = 0.40 with a color purity of 99.9%, an internal quantum efficiency of 90.69%, and a thermal activation energy of 0.36 eV. The prepared w-LED showed satisfactory color rendering index, correlation color temperature, and CIE coordinates. The Ca2InTaO6:Eu3+ phosphor also demonstrated clear reflection of latent fingerprint characteristics. These results indicate the potential application of Ca2InTaO6:Eu3+ phosphor in w-LED production and LFP detection.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Optics
Xiaopeng Hu, Anlin Zhang, Fanhua Zeng, Yanhua Lei, Lianwu Xie, Ruijin Yu, Bin Deng, Huihong Lin
Summary: Novel red-emitting phosphors, SLTO:Eu3+, were successfully synthesized and found to be suitable for use in w-LEDs and LFP visualization. The properties of the SLTO:Eu3+ phosphors, including crystalline structure, bandgap, and photoluminescence, were thoroughly investigated. The phosphors emitted orange-red light and exhibited higher thermal stability compared to conventional red phosphors. The SLTO:0.30Eu3+ phosphor effectively detected level 1-3 structures of LFPs and showed promise for w-LED lighting and LFP visualization.
JOURNAL OF LUMINESCENCE
(2023)
Article
Engineering, Electrical & Electronic
Bin Deng, Ya Yang, Wensheng Chen, Jianhong Jiang, Ruyi Kang, Ruiqi Yang, Xinjing Xie, Changlin Li, Zhequan Zou, Ruijin Yu
Summary: A new trivalent europium activated pure phase red-emitting Bi4Sr3Te5O19 phosphor was synthesized by high-temperature solid-state method. The crystal structure, surface morphology, optical characterizations, color coordinates, and emission decay profiles were determined. The phosphor exhibited efficient excitation at 395 and 464 nm, and displayed a strong red emission peak at 616 nm due to the D-5(0)-> F-7(2) transition of Eu3+ ions. The optimal doping concentration was found to be 30 mol%. The fabricated w-LED showed high color rendering index and appropriate correlated color temperature, indicating the potential value of Bi4Sr3Te5O19:Eu3+ phosphors for w-LEDs.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Ceramics
Yixuan Zhao, Lu Liu, Li Zhou, Ruiqi Yang, Changlin Li, Jiexin Chen, Ziyue Hu, Haoran Su, Bin Deng, Xiaohui Ji, Ruijin Yu
Summary: New red-emitting phosphors of Sm3+ doped Cd2MgTeO6 tellurate with Na+ ions as charge compensation were successfully synthesized. The prepared phosphors were characterized for their phase purity, particle morphology, luminescence characteristics, thermal stability, and CIE chromaticity. The optimal concentration of Sm3+ dopant in Cd2MgTeO6 phosphor was found to be 2 mol%. The Cd2MgTeO6:2 mol%Sm3+, 2 mol%Na+ phosphor exhibited strong red-light emission at 647 nm, which is suitable for applications in white LEDs and plant growth LEDs.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Yifang Lin, Daomiao He, Kezhou Jiang, Renkang Qin, Jingfei Wang, Yumeng Shao, Jiaxin Yan, Ruijin Yu, Dan Zhang, Shouan Xie, Lei Zhao
Summary: A new series of red luminescent K5La(MoO4)4:xEu3+ (KLMO:xEu3+) phosphors were synthesized successfully through a high-temperature solid phase reaction at a low reaction temperature (600°C). The XRD pattern, photoluminescence properties, thermal quenching mechanism, quantum efficiency, and lifetime decay curves of the phosphors were measured and discussed in detail. The optimal doping concentration of phosphors is 0.8 mol. The prepared phosphors exhibited strong red-light emission (at 615 nm) upon excitation at 394 nm, attributed to the electric dipole 5D0-7F2 transition of Eu3+. The KLMO:0.80Eu3+ phosphor showed good thermal stability with a quenching temperature exceeding 480 K and a high activation energy of 0.43 eV. Impressively, the KLMO:0.80Eu3+ phosphor also demonstrated a high internal quantum efficiency (IQE) of up to 84.5%. The packaged white light emitting diode (w-LED) using KLMO:0.80Eu3+ phosphor exhibited a good color rendering index (CRI) (89), correlated color temperature (CCT) (5117 K), and Commission International de L'Eclairage (CIE) chromaticity coordinates (0.342, 0.345). Furthermore, surface-functionalization of KLMO:0.80Eu3+ phosphor with oleic acid (OA) (KLMO:0.80Eu3+@OA) showed potential in identifying Level I-III fingerprint details with high resolution and contrast. The results suggest promising applications of KLMO:Eu3+ and KLMO:Eu3+@OA phosphors in w-LEDs and latent fingerprints (LFPs).
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Optics
Yufeng Du, Yuxin Li, Yixuan Zhao, Xinyu Zhang, Changlin Li, Ruiqi Yang, Zhequan Zou, Jingjing Lian, Jinyou Duan, Huihong Lin, Ruijin Yu
Summary: A series of red luminescent Cd2MgTeO6:xEu3+ (x = 0.5-50 mol%) phosphors were successfully synthesized through high-temperature solid-phase reaction. The synthesized phosphors showed good phase purity, surface morphology, elemental distribution, and luminescence properties. The Cd2MgTeO6:Eu3+ phosphors exhibited strong orange-red light emission and excellent thermostability. The surface-functionalized Cd2MgTeO6: 20 mol%Eu3+ phosphor showed good visualization of latent fingerprints with high resolution and contrast. Therefore, Cd2MgTeO6:Eu3+ phosphors hold great promise for the visualization of w-LEDs and latent fingerprints.
JOURNAL OF LUMINESCENCE
(2023)
Article
Materials Science, Multidisciplinary
Ziyue Hu, Ruiyuan Liu, Zhequan Zou, Li Zhou, Chaoyue Wang, Jingjing Wang, Ruiqi Yang, Yanping Liu, Huiling Geng, He Wang, Ruijin Yu
Summary: A series of red-emitting phosphors, ScNb2VO9:xEu3+ (x = 0.5, 1, 2, 5, 20, 30, 40, and 45 mol%), were prepared by high-temperature solid-state reaction. The ScNb2VO9:20 mol%Eu3+ phosphor exhibited red emission at 618 nm (5D0 -> 7F3 transition) under 324 nm excitation. The phosphor showed wide excitation with charge transfer band (CTB) from O2--V5+ and O2--Eu3+ transitions between 225 and 360 nm. The prepared ScNb2VO9:20 mol%Eu3+ phosphor demonstrated high thermal stability, moisture resistance stability, and UV radiation stability. The ScNb2VO9:Eu3+ phosphor combined with oleylamine showed clear features of latent fingerprint (LFP) on different surfaces using the powder dusting method, highlighting its superiority in LFP development.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Biochemistry & Molecular Biology
Xiaohui Ji, Chen Li, Junhai Liu, Tianlei Zhang, Yue Yang, Ruijin Yu, Xuegang Luo
Summary: In order to regulate the visible-light-driven photocatalytic properties of photocatalysts, BiOBr particles with controllable morphology and photocatalytic activities were obtained through various routes. By adjusting the volume ratio of ethylene glycol (EG) to ethanol (EtOH) and the volume ratio of EG to H2O, the BiOBr compounds showed different photocatalytic performances. The impact of sintering temperature on the photocatalytic properties of BiOBr particles was also explored.