Article
Materials Science, Ceramics
Siling Liu, Lin Zeng, Zhou Zhao, Miao Deng, Xiaomeng Wang, Wentao Zhang
Summary: A single-component Ca3YAl3B4O15 (CYAB):Dy3+, Eu3+ phosphor was synthesized and codoped to achieve warm white emission. The results showed that the codoped samples had the standard CYAB structure without impurity phases. The dual emission of Dy3+ and Eu3+ enabled the realization of warm white light, and the correlated color temperature decreased with increased Eu3+ content. The single-component Dy3+/Eu3+ codoped CYAB phosphor has potential applications in UV excited warm white LEDs.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Applied
Sen Wang, Haiyan Wu, Xin Wen, Yanqing Luo, Tao Tan, Shengjian Jiao, Ran Pang, Lihong Jiang, Su Zhang, Da Li, Guanyu Liu, Chengyu Li, Hongjie Zhang
Summary: A series of Eu2+/Dy3+ single doped and co-doped Na3Sc2(PO4)(3) phosphors were synthesized and characterized. The Na3Sc2(PO4)(3):Eu2+,Dy3+ phosphor can emit white light and the color coordinates can be adjusted by varying the Dy3+ concentration. The fluorescence lifetime decrease and the application of Dexter's theory confirm the energy transfer from Eu2+ to Dy3+. These phosphors have potential applications in white LEDs.
JOURNAL OF RARE EARTHS
(2022)
Article
Chemistry, Inorganic & Nuclear
Huibin Zheng, Chunyu Zheng, Xin Lian, Yarui Shi, Jianxin Li, Haixiang Song, Bangfu Ding
Summary: By tuning the pH values, white light emission was achieved in a single-component lutetium tungstate without any doping elements. The exciton binding energy of the monoclinic Lu2WO6 phase was found to be larger than that of the orthorhombic Lu2W3O12 and rhombohedra Lu6WO12 phases, resulting in its light emission. A new broad-band emission was observed in Lu2WO6, originating from the electron transition between oxygen vacancies and the valence band. A white light LED lamp was fabricated using Lu2WO6 phosphor synthesized at pH values of 4.5 and 6 and 365nm LED chips, with CIE coordinates in the white light region.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
Noor Zamin Khan, Sayed Ali Khan, Li Zhan, Abdul Jalil, Jahangeer Ahmed, M. A. Majeed Khan, Muhammad Tahir Abbas, Feihong Wang, Xin Xu
Summary: Novel tunable-color emitting phosphors with double perovskite structure, synthesized via high-temperature solid state reaction, exhibit intensive intrinsic emission under UV light excitation, which can be efficiently tuned to different colors through doping Bi3+ and Eu3+.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Optics
Weixu Feng, Guorui Fu, Hao Zheng, Huize Zheng, Shuai Yuan, Xingqiang Lu
Summary: Research has developed a single-component Eu3+-metallopolymer capable of emitting high-quality white light, which was successfully applied to near-ultraviolet white light-emitting diodes, demonstrating promising potential for future applications in the field.
JOURNAL OF LUMINESCENCE
(2021)
Article
Optics
Qiang Ren, Yujing Zhao, Xiulan Wu, Ou Hai
Summary: The research successfully synthesized single-phase phosphor samples co-doped with Tb3+/Eu3+/Tm3+ in LaAl2.03(B4O10)O-0.54, demonstrating potential application value in the field of white-emitting phosphors.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Mohan Lal Meena, Sudipta Som, Rajneesh Chaurasiya, Shawn D. Lin, Chung-Hsin Lu
Summary: This study developed a series of Na2Ca1-x-yCexMnyP2O7 phosphors using the solid-state reaction method in an H2-N2 environment. The crystal structure, valence state, emission behavior, energy transfer mechanism, and thermal quenching behavior of the phosphors were investigated. Doping with Ce3+ and Mn2+ ions improved the photoluminescence properties of Na2Ca1-x-yCexMnyP2O7, and the addition of Mn2+ ions led to the emission of white light. Energy transfer from Ce3+ to Mn2+ ions was observed, and it was governed by dipole-quadrupole interaction. These phosphors have potential applications in high-power LEDs due to their white light emission, high activation energy, and low thermal quenching behavior.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Meng Kuang, Junhao Li, Jinjun Zhang, Jianhong Ding, Ziwang Zhang, Kangrong Huang, Nan Yang, Ziheng Zhang, Mingming Yang, Haiyong Ni
Summary: In this study, the effect of Dy3+ doping on the properties of ScCaBO4 phosphors was investigated, and a series of ScCaBO4:Dy3+ phosphors were prepared by solid-state reactions. The results suggest that Dy3+ concentration can reach 11% while maintaining a pure phase, and the Dy3+ luminescence shows promising performance for near-UV chip based WLEDs.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Optics
Jihuan Xie, Liqun Cheng, He Tang, Xiaofang Yu, Zhongxue Wang, Xiaoyun Mi, Quansheng Liu, Xiyan Zhang
Summary: A series of NaBi(MoO4)2 phosphors doped with different Sm3+ concentrations were prepared, and their crystalline phases and luminescent properties were investigated in detail, revealing the optimal doping concentration and energy transfer mechanism.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Tianqing Zhang, Xiliang Jiang, Rujia Chen, Bingyan Liu, Weiling Yang, Ce Li, Hai Lin, Huisheng Liu, Chun Li, Fanming Zeng, Zhongmin Su
Summary: In this study, a narrow-band blue phosphor BaZnAl10O17:Eu2+ with excellent emission performance was discovered, which is essential for developing high-performance LCDs. The synthesized phosphor exhibits low thermal quenching behavior, with only minimal loss in emission intensity at high temperatures. The prepared white LED device using this narrow-band blue-emitting phosphor emits high-brightness white light with a wide color gamut, showing its potential application value in white light-emitting diodes.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Polymer Science
Xiaoshuai Zhang, Teng Li, Cong Yu, Weiqiang Miao, Hui Wang, Yiwei Fu, Bojun Zhou, Dan Liu, Wei Li, Tao Wang
Summary: Efficient single-layer white-light emitting diodes (WLEDs) are achieved by doping a small amount of a red polymer into the perovskite nanocrystals matrix. The emission color of the WLEDs can be tuned from cold white-light to warm white-light by adjusting the weight ratio of the nanocrystals to the polymer. With a low voltage, the WLEDs exhibit standard white-light emission with high luminance and external quantum efficiency.
Article
Chemistry, Inorganic & Nuclear
P. Balakrishnan, S. Masilla Moses Kennedy
Summary: In this study, Ba2CaZn2Si6O17 phosphors doped with non-rare earth element Pb2+ ions were prepared via a simple solid state reaction process. Under 293 nm excitation, the co-doped phosphors exhibited promising luminescence properties for potential applications in white light emitting diodes (WLED).
SOLID STATE SCIENCES
(2021)
Article
Optics
Jiawei Chen, Jian Wang, Xiaobao Xu, Jinhang Li, Jizhong Song, Si Lan, Sinan Liu, Bo Cai, Boning Han, Jake T. Precht, David Ginger, Haibo Zeng
Summary: Halide perovskite LEDs are a new type of white light-emitting diode that utilizes efficient and low-cost lighting technologies, featuring a single broadband emissive layer without the need for phosphors. These LEDs operate with high peak luminance and external quantum efficiency, with potential for further improvements in the future through advancements in fabrication technology and mechanistic understanding.
Article
Engineering, Electrical & Electronic
Manju Dahiya, Dinesh Kumar
Summary: A series of novel single-phase white light-emitting Dy3+-doped Ca9Al(PO4)(7) nanophosphors were successfully synthesized through solution combustion route, with optimum concentration found to be 0.03 mol and correlated color temperature (CCT) of 11,332 K indicating cool white light. The research results suggest that the nanophosphor may be a favorable candidate in NUV-based single-phase WLEDs.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Multidisciplinary
Xupeng Gao, Xinyu Shen, Dingke Xue, Xin Li, Po Lu, Min Lu, Chunyan Li, William W. Yu, Xue Bai
Summary: Research demonstrates a simple, efficient and low energy consumption crystallization method to synthesize Mn2+ ion doped 2D perovskite nanocrystals with dual-color emission. The high PLQY of 54% has been achieved in the Mn2+ ion doped 2D perovskite nanocrystals. The efficient energy transfer from excitons to Mn2+ dopant ions opens up opportunities for white LEDs in LED applications.
MATERIALS CHEMISTRY FRONTIERS
(2021)
