Article
Optics
Pengfei Yu, Ruirui Cui, Gangyi Zhang, Jun Zhang, Chaoyong Deng
Summary: A series of Sr3In2WO9:xSm3+ (x = 0.02, 0.03, 0.04, 0.05, and 0.06) and Sr3In2WO9:0.04Sm3+, yEu3+ (y = 0.05, 0.10, 0.15, 0.20, 0.25, 0.30, and 0.35) phosphors were synthesized by solid-state reaction method. Then the microstructure and optical properties of samples were tested by the corresponding means. The results show that the optimal doping concentration of single-doped Sm3+ phosphor is x = 0.04 and the performance of Sm3+/ Eu3+ co-doped phosphors has been improved.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Chemistry, Physical
Prashant Dixit, Vaibhav Chauhan, S. B. Rai, Praveen C. Pandey
Summary: Dy3+/Sm3+ co-doped CaMoO4 compounds were successfully synthesized via the auto-combustion method. The tetragonal crystal structure and vibrational modes of the phosphors were confirmed through structural study and infrared spectroscopy. The co-doping of Sm3+ ions in 4% Dy3+ doped CaMoO4 phosphor improved their luminescence properties and resulted in overall white light emission.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Inorganic & Nuclear
S. Ling, F. B. Xiong, W. B. Yang, H. F. Lin, W. Z. Zhu
Summary: Novel red-emitting phosphors Sr7Sb2O12: Sm3+ and Sr7Sb2O12: Sm3+, Eu3+ were synthesized and characterized. Energy transfer between Sm3+ and Eu3+ ions in Sr7Sb2O12 was achieved with a transfer efficiency of 42.4%. The phosphor exhibited good thermal stability and produced white light when combined with near-UV or blue chips in LED lamps.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Vaibhav Chauhan, Pratik Deshmukh, S. Satapathy, Praveen C. Pandey
Summary: This article investigates the effects of Li+ doping on the crystallinity and emission spectrum of Zn-3(VO4)(2) phosphor, demonstrating enhanced broad excitation and emission in the visible region, as well as increased emission band lifetime. The results show potential for utilization of Li+ doped zinc vanadate phosphor with near-UV LED chips to achieve white light.
RESULTS IN PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Prashant Dixit, Vaibhav Chauhan, Prashant Kumar Pandey, Praveen C. Pandey
Summary: In this study, a significant improvement in the green emission of Tb3+ doped CaMoO4 by Bi3+ co-doping has been reported. XRD patterns reveal an impurity-free tetragonal crystalline structure of all the phosphors. The improvement in emission intensity for Bi3+ co-doped phosphors is attributed to improved crystalline nature and transfer of energy from Bi3+ to Tb3+ levels. Therefore, CaMoO4 with optimum concentration of Bi3+ and Tb3+ ions can be used as potential green emitting phosphors.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Ceramics
Ram Gopal, Jairam Manam
Summary: A series of white light emitting Pr3+ activated SrWO4 phosphors with good optical and structural properties were synthesized, which can be used for the fabrication of white LEDs.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Jedrzej Winczewski, Manuel Herrera, Han Gardeniers, Arturo Susarrey-Arce
Summary: This paper presents the additive manufacturing of three-dimensional structured phosphors emitting red, green, blue, and white, which allows advanced applications in optics and photonics. This development is a step forward in realizing additive color synthesis within complex architectures relevant to integrated optics or light-emitting sources.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Shuo Yang, Chuqi Wang, Xiaoxi Ma, Chuang Wang, Yujuan Dong, Enlai Dong, Ge Zhu, Shuangyu Xin
Summary: Researchers have synthesized a lanthanide luminescent material doped with Bi3+ ions by high-temperature sintering, which can emit broad green-yellow light under ultraviolet radiation. The broadband emission spectra of Bi3+ ions are proved to be generated by the metal-to-metal charge transfer state and the P-3(1) & RARR; S-1(0) transition through analysis of the coordination environment, photoluminescence spectra, and decay curves. The luminescence mechanism of Bi3+ is examined through theoretical research, luminescence kinetics, and Gaussian fitting. The high quantum efficiency and superior thermal stability make this phosphor suitable for use in full-spectrum LED devices.
DALTON TRANSACTIONS
(2023)
Article
Materials Science, Ceramics
Peixin Gao, Zeyun Zhou, Peng Dong, Qian Li, Honghui Li, Jing Wang, Zhi Zhou, Mao Xia
Summary: A novel blue and far-red dual emitting phosphor, GMTO: Bi3+, Cr3+, was synthesized in this study, showing luminescence tuning through Cr3+ doping and enhanced photoluminescence intensity by Bi3+. The emission spectrum of the phosphor matched well with the absorption spectra of plant pigments, indicating potential applications in LED plant lamps.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Optics
H. Desirena, J. Molina, O. Meza, A. Benitez, J. Bujdud-Perez, J. Briones-Hernandez
Summary: A phosphor for near ultraviolet (n-UV) based white light emitting diodes (wLED) with low correlated color temperature (CCT) and high CRI was designed using highly Eu3+ activated tellurite samples. Glass ceramic (GC) containing Eu2Te6O15 microcrystals were prepared through crystallization time control, and showed improved luminescence properties. The heavily Eu3+ doped samples achieved the maximum luminous efficacy (LE) after 4 hours of crystallization time. A white light-emitting diode constructed with a green phosphor on top of these samples showed tunable CCT and decreasing LE with increasing crystallization time.
JOURNAL OF LUMINESCENCE
(2022)
Article
Materials Science, Multidisciplinary
Elena Cabello-Olmo, Pau Molet, Agustin Mihi, Gabriel Lozano, Hernan Miguez
Summary: The combination of LEDs and rare earth phosphors forms the basis of solid-state lighting, allowing for different photonic designs. Strategies such as surface texturing can be employed to tune and enhance emission. A low-cost nanolithography procedure has been shown to be effective in adjusting the emission properties of red-emitting nanophosphors.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Materials Science, Ceramics
Yonghui Xu, Shuwen Yin, Xiudi Wu, Chuansheng Zhong, Xibao Zhang, Liang Zhou, Hongpeng You
Summary: In this study, a highly efficient phosphor with broadband blue emission was synthesized, showing improved blue emission intensity with the co-doping of Na+ ions. The internal and external quantum efficiencies of the phosphor were significantly enhanced. The phosphor was successfully integrated into WLED devices, achieving high-quality warm white lighting.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
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
Materials Science, Multidisciplinary
Fu Du, Shengnan Wang, Yu Zhang, Chao Li, Lei Chen, Jintian Lin, Xianhua Wei, Bo Dai
Summary: A novel broadband orange emitting phosphor Lu6.254Si11N20.762O0.238:Ce3+ was prepared with phase purity and crystal structure verified. It showed a broad bright orange emission peaking at 556 nm with a FWHM of 110 nm, attributed to Ce3+ occupying three different crystallographic sites. A warm white LED device with high color rendering and full-spectrum was successfully fabricated using this phosphor.
Article
Chemistry, Inorganic & Nuclear
Limin Fang, Liangliang Zhang, Hao Wu, Huajun Wu, Guohui Pan, Zhendong Hao, Feng Liu, Jiahua Zhang
Summary: Broadband NIR pc-LEDs are crucial for integrating NIR spectrometers into mobile devices for rapid and noninvasive detection of biological components. However, efficient broadband NIR phosphors with a peak emission wavelength longer than 800 nm are lacking. In this study, a CaMgGe2O6:Cr3+ phosphor was prepared and used to fabricate a high-performance broadband NIR pc-LED, achieving the highest reported photoelectric efficiency and NIR output power for pc-LEDs with a peak wavelength longer than 800 nm. The results demonstrate the considerable potential of CaMgGe2O6:Cr3+ phosphor in NIR spectroscopic applications.
INORGANIC CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Yuki Imabayashi, Shun'ichi Suzuki, Hisashi Kawasaki, Tsuyoshi Nakamatsu
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
(2016)
Article
Microbiology
Yuta Mizuno, Megumi Nagano-Shoji, Shosei Kubo, Yumi Kawamura, Ayako Yoshida, Hisashi Kawasaki, Makoto Nishiyama, Minoru Yoshida, Saori Kosono
Article
Biochemistry & Molecular Biology
Yoshitaka Nakayama, Michael Becker, Haleh Ebrahimian, Tomoyuki Konishi, Hisashi Kawasaki, Reinhard Kraemer, Boris Martinac
BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES
(2016)
Article
Biochemistry & Molecular Biology
Hisashi Kawasaki, Kenji Ueda
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
(2017)
Article
Multidisciplinary Sciences
Atsuhiro Tomita, Mingfeng Zhang, Fei Jin, Wenhui Zhuang, Hironori Takeda, Tatsuro Maruyama, Masanori Osawa, Ken-ichi Hashimoto, Hisashi Kawasaki, Koichi Ito, Naoshi Dohmae, Ryuichiro Ishitani, Ichio Shimada, Zhiqiang Yan, Motoyuki Hattori, Osamu Nureki
NATURE COMMUNICATIONS
(2017)
Article
Biochemistry & Molecular Biology
Ken-ichi Hashimoto, Jun Murata, Tomoyuki Konishi, Isamu Yabe, Tsuyoshi Nakamatsu, Hisashi Kawasaki
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
(2012)
Article
Biochemistry & Molecular Biology
Chikako Yamashita, Ken-ichi Hashimoto, Kosuke Kumagai, Tomoya Maeda, Ayako Takada, Isamu Yabe, Hisashi Kawasaki, Masaaki Wachi
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
(2013)
Article
Biotechnology & Applied Microbiology
Masanari Takahashi, Yasushi Takemoto, Tadahiro Shimazu, Hisashi Kawasaki, Makoto Tachibana, Yoichi Shinkai, Motoki Takagi, Kazuo Shin-ya, Yasuhiro Igarashi, Akihiro Ito, Minoru Yoshida
JOURNAL OF ANTIBIOTICS
(2012)
Article
Biotechnology & Applied Microbiology
Masashi Ueki, Naofumi Koshiro, Harumi Aono, Makoto Kawatani, Masakazu Uramoto, Hisashi Kawasaki, Hiroyuki Osada
JOURNAL OF ANTIBIOTICS
(2013)
Correction
Biotechnology & Applied Microbiology
Masanari Takahashi, Yasushi Takemoto, Tadahiro Shimazu, Hisashi Kawasaki, Makoto Tachibana, Yoichi Shinkai, Motoki Takagi, Kazuo Shin-Ya, Yasuhiro Igarashi, Akihiro Ito, Minoru Yoshida
JOURNAL OF ANTIBIOTICS
(2014)
Article
Biotechnology & Applied Microbiology
Yoshihiro Usuda, Megumi Shimaoka, Hisashi Kawasaki, Takashi Utagawa
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
(2011)
Article
Multidisciplinary Sciences
Yoshitaka Nakayama, Kosuke Komazawa, Navid Bavi, Ken-ichi Hashimoto, Hisashi Kawasaki, Boris Martinac
SCIENTIFIC REPORTS
(2018)
Review
Biochemistry & Molecular Biology
Hisashi Kawasaki, Boris Martinac
CURRENT OPINION IN CHEMICAL BIOLOGY
(2020)
Article
Biochemistry & Molecular Biology
Ayano Komine-Abe, Megumi Nagano-Shoji, Shosei Kubo, Hisashi Kawasaki, Minoru Yoshida, Makoto Nishiyama, Saori Kosono
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY
(2017)
Article
Optics
R. B. Adamov, G. A. Melentev, I. V. Sedova, S. V. Sorokin, G. V. Klimko, I. S. Makhov, D. A. Firsov, V. A. Shalygin
Summary: This study investigates the THz luminescence in doped nanostructures with GaAs/AlGaAs quantum wells under interband optical pumping. The results show that the spatial separation of donors and acceptors can greatly enhance the integrated intensity of THz emission.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Yanru Li, Lei Zhong, Sha Jiang, Yutong Wang, Binyao Huang, Guotao Xiang, Li Li, Yongjie Wang, Chuan Jing, Xianju Zhou
Summary: In this study, a ratiometric luminescent thermometry based on dual-emission centers was developed using co-doped CaNb2O6 phosphors with Bi3+ and Pr3+. The obtained samples exhibited good thermosensitive and thermochromic characteristics, with a maximum absolute sensitivity of 0.09 K-1 @ 528 K and a maximum relative sensitivity of 2.17 % K-1 @ 453 K.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Yujing Gong, Yeqing Wang, Zhiyuan Wang, Yijian Sun, Yi Yu
Summary: Single crystals of Dy3+ single-doped and Dy3+/Tb3+ co-doped CaYAlO4 were grown and analyzed. The incorporation of Tb3+ resulted in increased absorption and emission cross sections. The fluorescence lifetimes and branching ratios of the yellow emission were affected by the presence of Tb3+. The deactivation effect of Tb3+ ions and energy transfer mechanism were also discussed.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Lu Chen, Zhuangzhuang Ma, Jian Chen, Wang Guo
Summary: This study focuses on enhancing the thermal robustness of phosphor converter materials by preparing composite ceramics of YAG:Ce combined with high-thermal-conductivity MgO. The composite ceramics showed high density and thermal conductivity at the optimum temperature of 1400℃. Stable laser-driven white light was obtained under blue laser excitation.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Yuwei Wu, Chunhui Niu, Lei Wang, Mingqing Yang, Shiyu Zhang
Summary: Er3+-doped germanate-tellurite glasses were prepared and their structure, luminescent, and temperature-sensing properties were studied. The glass exhibited large values of O2 and O6 and its luminescence intensity varied with temperature.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Kensei Ichiba, Takumi Kato, Kenichi Watanabe, Yuma Takebuchi, Daisuke Nakauchi, Noriaki Kawaguchi, Takayuki Yanagida
Summary: In this study, Eu-doped YVO4 single crystals with different concentrations were fabricated to evaluate their photoluminescence and scintillation properties. The results showed that the samples doped with Eu exhibited emission peaks due to 4f-4f transitions in PL and scintillation spectra. Based on the pulse height spectra, the light yield of the Eu-doped samples increased with increasing Eu concentration, while the afterglow level decreased.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Daiwen Xiao, Hei-Yui Kai, Anjun Huang, Menglin Song, Ka-Leung Wong, Peter A. Tanner
Summary: The emission spectra of Cs2NaEuCl6 nanoparticles synthesized by the hot injection method are explained. The dispersion of the nanoparticles in alkane solvents in the experiment allows the determination of the magnetic dipole radiative rate for the D-5(0) -F-7(1) channel in vacuum, which is in agreement with the calculated value.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Italia V. Barbosa, Geraldine Dantelle, Alain Ibanez, Lauro J. Q. Maia
Summary: The thermal response and luminescence properties of different oxide matrices were evaluated to design more accurate thermal probes. It was found that thermal probes emitting in BW-II provide better thermal sensing with higher signal-to-noise ratio. Additionally, doping Nd3+ in Y2O3 matrix maximizes luminescence intensity, making it a promising matrix for thermal sensing.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Xin Li, Yu Zhang, Hongrui Ren, Lunlong Xie, Yinsheng Di, Mengqing Han, Zhaohui Bai, Quansheng Liu, Liangliang Zhang, Jiahua Zhang
Summary: This study successfully prepared phosphor samples based on Ca3-xLuxSc2-xMgxSi3O12:Ce3+ and investigated their luminescence properties. With the increase in Lu-Mg concentration, the peak of the sample redshifted, but the thermal stability gradually decreased. The LD devices made from CLSMS:Ce3+ fluorescent materials showed a decrease in cyan-green light and an increase in red light as the Lu-Mg concentration increased.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Tim Pier, Julia Hopster, Thomas Juestel
Summary: This study investigates and reports on several samples of cerium-activated gallium-based garnet phosphors. The optimal activator concentration was found to be 1 atom-%. The size of non-emitting lanthanide ions and the molar concentration of cerium strongly influenced the crystal field splitting, which in turn shaped the excitation and emission wavelengths.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Guijie Zhao, Wei Shi, Xin Xin, Fengcai Ma, Yongqing Li
Summary: This study reveals for the first time the proton transfer pathways and changes in the photophysical properties of P-TNS with three intramolecular hydrogen bonds. The reaction mechanism and driving force for the proton transfer process are explained through analysis of potential energy surface, frontier molecular orbitals, and hydrogen bond parameters, among others.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Li He, Jinshu Huang, Zhengce An, Haozhang Huang, Yu Zhao, Kexin Zhong, Bo Zhou
Summary: In this study, we designed a NaYF4:Yb3+/Tm3+@NaYF4 core-shell nanostructure to achieve thermochromic upconversion and high thermal sensitivity. We found that the blue upconversion emission of Tm3+ decreased while the deep-red emission increased with elevating temperature. The sample also showed a gradual emission color change from blue to purplish-red, and the optimal relative sensitivity reached 2.79% K-1.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Rupesh A. Talewar
Summary: A series of Li2TiO3 phosphors doped with Mn4+ and codoped with Mn4+ and Er3+ were synthesized, which demonstrated the ability of Mn4+ ions to absorb UV-Vis photons and subsequently transfer energy to Er3+ ions, resulting in the emission of near-infrared light. These materials have the potential to enhance the absorption efficiency of Er3+-based luminescent materials.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Xingyuan Ma, Jianfeng Li
Summary: Carbon quantum dots (CQDs) with tunable photoluminescence properties have been synthesized using suitable carbon and dopant sources in an aqueous system. The synthesized CQDs exhibited blue, green, yellow, and red emissions, and solid-state luminescence was achieved through the preparation of solid-state fluorescent films and phosphors. This study provides important technical support for the future development of CQDs synthesis.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
De Bin Fu, Yang Bing Xu, Yu Teng Zhang, Shan Ting Liu, Xiao Fei Yang, Sheng Hua Liu
Summary: A pair of new chiral molecules, (S)-4 and (R)-4, have been designed and synthesized by introducing valine-containing groups at symmetrical positions on the periphery of an indolo[3,2-b]carbazole unit. These molecules exhibit aggregation-induced circular dichroism (AICD) properties in DMF/water mixtures, and in a mixture with 99% water fraction, they show strong, mirror-image, blue circularly polarized luminescence (CPL) signals.
JOURNAL OF LUMINESCENCE
(2024)
