Article
Materials Science, Ceramics
Qiyun Liu, Meihua Wu, Boli Chen, Ximing Huang, Mingyong Liu, Yifei Liu, Ke Su, Xin Min, Ruiyu Mi, Zhaohui Huang
Summary: This study investigates the photoluminescence strategy of introducing Dy3+ for fluorescence intensity ratio thermometry (FIR). The crystal structure, morphology, and luminescence behavior of CaLa4(SiO4)3O: Dy3+ were studied. This research provides a research foundation and reference value for the temperature measurement of Dy3+ doped phosphors.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
K. Pavani, A. J. Neves, Ricardo J. B. Pinto, Carmen S. R. Freire, M. J. Soares, M. P. F. Graca, K. Upendra Kumar, S. K. Jakka
Summary: Highly thermally stable Er3+/Tm3+/Yb3+ tri-doped bismuth lanthanum tungstate phosphors were prepared by high temperature solid-state reaction method. Their structure, morphology and luminescence properties were analyzed using various techniques, revealing the maximum sensitivity of the TCL related to Er3+ UC at 300 K. Temperature dependent CIE color coordinates were also evaluated in the cryogenic temperature region.
CERAMICS INTERNATIONAL
(2022)
Article
Spectroscopy
Fengya Hu, Dong Zhang, Yongjin Wu, Chengmei Sun, Chengcheng Xu, Qingru Wang, Yanru Xie, Qiang Shi, Shuhong Li, Kai Wang
Summary: Cubic type ZnTiO3 nanophosphors were synthesized and studied for their photoluminescence properties with Eu3+/Mn4+ co-doping and Mn4+ modification. The results showed that the surface modification by transition metals improved the temperature sensing performance of the crystals.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Materials Science, Multidisciplinary
Aleksandr A. Nashivochnikov, Anton I. Kostyukov, Aleksey V. Zhuzhgov, Marianna I. Rakhmanova, Svetlana V. Cherepanova, Valeriy N. Snytnikov
Summary: A series of Eu-doped ZrO2 micropowders with varying concentrations of Eu were studied. The increase in Eu content led to stabilization of the tetragonal phase and stabilization of the cubic ZrO2 phase above a certain concentration. Red luminescence in the samples was found to be caused by radiation transitions in Eu3+ ions.
Article
Chemistry, Physical
J. Shivakumara, C. Manjunatha, R. Hari Krishna, S. Ashoka, Chikkahanumantharayappa, Manickam Selvaraj, Mika Sillanpaa
Summary: A simple solution combustion method was used to synthesize Na+ and K+ co-doped Cd0.95Eu0.05SiO3 phosphor, and the influence of charge compensators on luminescence performance was systematically investigated. The emission intensity of Cd0.95Eu0.05SiO3 phosphors was enhanced with increasing concentrations of Na+ and K+, reaching optimal co-dopant concentrations at 7 mol%. The enhancement in photoluminescence emission was attributed to the mechanisms of charge compensation and phosphor crystallinity, indicating their potential for optoelectronic applications.
Article
Materials Science, Multidisciplinary
J. Shivakumara, C. Manjunatha, R. Hari Krishna, S. Ashoka, G. Gousiya Bhanu, B. Manmadha Rao, B. Venkateswarlu, Chikkahanumantharayappa, Ajit Khosla
Summary: This study aims to enhance the photoluminescence property of CdSiO3:Eu3+ nanophosphors by co-doping with Zn2+ ions. The results showed that co-doping with Zn2+ ions increased the fluorescence intensity and also affected the crystal structure and size of the phosphors.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
Priti Singh, Ram Sagar Yadav, Shyam Bahadur Rai
Summary: Intense red photoluminescence was observed in Eu3+/Z(+) co-doped CaTiO3 perovskite phosphor materials, with XRD and SEM characterization showing increased crystallite and particle size upon alkali ion incorporation. Spectral analysis revealed different transitions and band gap changes during the doping process.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Materials Science, Ceramics
Ruiting Zhang, Yahong Jin, Lifang Yuan, Chuanlong Wang, Guangting Xiong, Haoyi Wu, Li Chen, Yihua Hu
Summary: The inorganic photochromic material SrZrO3:Sm3+ designed in this study demonstrates dual information storage and recognition functions, achieved through the doping of Sm3+ for fluorescence regulation, which is conducive to optical switch applications.
CERAMICS INTERNATIONAL
(2022)
Article
Optics
Santosh K. Gupta, Ruma Gupta, B. G. Vats, J. S. Gamare, R. M. Kadam
Summary: Using deep eutectic solvent (DES), europium type (IV) DES (EuDES) was synthesized effectively, showing improved luminescence properties and spectroscopic characteristics.
JOURNAL OF LUMINESCENCE
(2021)
Article
Materials Science, Ceramics
Xiuying Tian, Jingliang Li, Huiyan Sheng, Ting Li, Lejia Guo, Changyan Ji, Zhi Huang, Jin Wen, Xin Liu, Chunyan Li, Jing Li, Yangxi Peng
Summary: The photoluminescence and temperature sensitivities of Ca3Y2Si3O12:Pr3+ thermophosphors with silico-carnotite structure were investigated, showing promising potential in the field of optical thermometry.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Shota Takemura, Yukinori Koyama, Takayuki Nakanishi, Shiro Funahashi, Naoto Hirosaki, Hidekazu Ikeno, Takashi Takeda
Summary: A new narrow-band emitting phosphor Na2Cs2Sr(B9O15)(2):Eu2+ was discovered using the local structure similarity with a known narrow-band emitting phosphor. Na2Cs2Sr(B9O15)(2):Eu2+ showed violet luminescence peaked at 417 nm with a narrow full-width at half-maximum of 26 nm (1497 cm(-1)).
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Physical
Shota Takemura, Yukinori Koyama, Takayuki Nakanishi, Shiro Funahashi, Naoto Hirosaki, Hidekazu Ikeno, Takashi Takeda
Summary: In this study, a new narrow-band emitting phosphor Na2Cs2Sr(B9O15)2:Eu2+ was discovered by analyzing the local structure similarity with a known narrow-band emitting phosphor. The synthesized phosphor exhibited a narrow peak emission at 417 nm and showed violet luminescence.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Materials Science, Ceramics
Yuefei Xiang, Lin Yang, Canyuan Liao, Xianfeng Xiang, Xiangkai Tang, Hanlin Tang, Jing Zhu
Summary: In this work, a new Na2Y2TeB2O10 (NYTB):Tb3+ phosphor is obtained and its thermometric properties are studied based on FIR and EIR models of Tb3+. Excellent sensitivity is achieved due to the significant difference in emission/excitation lines in response to temperature. The study also discusses the luminescence quenching mechanism dependent on Tb3+ content. This research provides a feasible route for developing well-performing FIR-/EIR-based thermometric materials.
JOURNAL OF ADVANCED CERAMICS
(2023)
Article
Chemistry, Physical
Xiao Liu, Siqi Shi, Kai Yang, Liang Chen, Degang Deng, Shiqing Xu
Summary: SrGa2B2O7: Bi3+, Eu3+ phosphors were successfully synthesized through high temperature solid-state method, with their structure, luminescent characteristics and temperature sensing properties studied. The phosphors exhibited high absolute and relative temperature sensitivity, making them a promising optical thermometric material for temperature sensing applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Inorganic & Nuclear
T. S. Sreena, Athira K. V. Raj, P. Prabhakar Rao
Summary: This study elucidates the effects of the position and intensity of the charge transfer band (CTB) on the photoluminescence properties of Eu3+ doped Ca2M2O7 (M = Nb, Sb and Ta) system. The position of the CTB depends on the electronegativity and coordination of the counter cation at the B-site. The results provide important insights for the design of rare earth activated phosphors using the factors of position and intensity of the charge transfer band.
SOLID STATE SCIENCES
(2022)
Article
Optics
Huitao Zhou, Ning Guo, Miaomiao Zhu, Jing Li, Yuqing Miao, Baiqi Shao
JOURNAL OF LUMINESCENCE
(2020)
Article
Materials Science, Multidisciplinary
Yu Ding, Ning Guo, Miaomiao Zhu, Wenzhen Lv, Ruizhuo Ouyang, Yuqing Miao, Baiqi Shao
MATERIALS RESEARCH BULLETIN
(2020)
Article
Chemistry, Physical
Qincan Ma, Ning Guo, Jing Wang, Baiqi Shao, Yanmei Xin, Ruizhuo Ouyang
Summary: This study discusses the relationship between thermal quenching performance and energy gap, and adjusts the thermal quenching activation energy by controlling the ion ratio and ligand structure. It proposes a new method for designing fluorescent powder materials with adjustable thermal quenching activation energy.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Engineering, Environmental
Yao Wang, Ning Guo, Baiqi Shao, Congfei Yao, Ruizhuo Ouyang, Yuqing Miao
Summary: This study uses Bi3+ ions instead of traditional Eu2+ and Ce3+ ions, and through controlling their concentration and coordination structure, achieves the tuning of the luminescent properties of phosphors, while also increasing the sensitivity of temperature monitoring.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Spectroscopy
Yuhui Zhang, Ning Guo, Baiqi Shao, Jing Li, Ruizhuo Ouyang, Yuqing Miao
Summary: A new temperature sensing strategy was proposed to attain strong sensitivity and excellent signal resolution ability using NLMW:Mn4+/Er3+ phosphors, achieving high-efficiency dual-mode emission. Detailed analysis of crystallographic structure and spectrum properties revealed a maximum relative sensitivity of 1.31% K-1, indicating the potential application of NLMW:Mn4+/Er3+ phosphors in non-contact temperature measurement.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Materials Science, Multidisciplinary
Qiuya Tang, Ning Guo, Yanmei Xin, Wenting Li, Baiqi Shao, Ruizhuo Ouyang
Summary: This study focuses on a double perovskite structure providing both trivalent Eu3+ and tetravalent Mn4+ lattice, resulting in red-emitting phosphors with adjustable emission by changing Eu3+ concentration. The research also shows that doping concentration of Eu3+ affects luminescence performance and intensity in the perovskite structure.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Spectroscopy
Miaomiao Zhu, Qincan Ma, Ning Guo
Summary: In this study, rare-earth-doped self-activated LiCa3ZnV3O12 (LCZV) vanadate phosphors were prepared and their crystal structure, non-contact temperature sensing, and luminescence properties were deeply studied. The emission of [VO4](3-) group and Eu3+ ions excited by ultraviolet light at 340 nm was monitored. The FIR from Eu3+ to [VO4](3-) exhibited excellent sensitivity performance at 303 K - 523 K. The Eu3+ doped LCZV phosphor not only can be used for high-temperature environmental safety signals but also is an extraordinary viable material in the field of optical sensing.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Multidisciplinary
Qincan Ma, Ning Guo, Mei Yang, Yanmei Xin, Baiqi Shao, Ruizhuo Ouyang
Summary: This study proposes a strategy of constructing multi-level electron traps to enhance the thermostability of phosphors. The phosphor host doped with Eu3+ was modified using polycrystalline crystals. The results demonstrate that the multi-level electron traps can release electrons at different temperatures to compensate for the thermal quenching of phosphors, thereby improving their thermostability.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Qincan Ma, Qiang Zhang, Mei Yang, Baiqi Shao, Ruizhuo Ouyang, Ning Guo
Summary: In this study, a new thermal quenching mechanism for Bi3+-MMCT transition luminescence is proposed by introducing electron-transfer potential energy (ΔET). The relative emission intensity of YV1-xPxO4:Bi3+ phosphors is increased by decreasing ΔET and increasing the thermal quenching activation energy (ΔE). The thermal quenching mechanism is revealed by density functional calculations, providing guidance for the contriving and researching of high-quality luminescence materials.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Xiang Lv, Ning Guo, Wenzhen Lv, Ruoting Liu, Song Qu, Ruizhuo Ouyang
Summary: The displacement of IVCT bands can optimize the luminescence thermal quenching performance of praseodymium-doped niobium-tantalum compounds, leading to an increase in emission intensity at high temperatures.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Yao Wang, Ning Guo, Yanmei Xin, Jing Li, Ruizhuo Ouyang, Baiqi Shao, Yuqing Miao
Summary: The doping of Bi3+ ions avoids the requirement of a reducing atmosphere and promotes its luminescence by regulating the composition of the solid solution. The construction of a Bi3+-Eu3+ dual luminescence system allows for the realization of a single matrix white light phosphor with promising application prospects.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Qincan Ma, Ning Guo, Yanmei Xin, Baiqi Shao
Summary: In this study, a new method for regulating the luminescence of Bi3+ was proposed, which can adjust the emission peak and is suitable for the preparation of high-performance phosphors.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Inorganic & Nuclear
Yao Wang, Ning Guo, Yanmei Xin, Jing Li, Ruizhuo Ouyang, Baiqi Shao, Yuqing Miao
Summary: This study investigates the synthesis of praseodymium-doped red-emitting phosphors based on niobate matrices and their application in temperature measurement. The phosphors exhibit self-reduction properties in air and excellent temperature sensitivity, showing great potential for temperature measurement applications.
DALTON TRANSACTIONS
(2021)
Article
Materials Science, Multidisciplinary
Yueyue Song, Ning Guo, Jing Li, Yanmei Xin, Wei Lu, Yuqing Miao
Summary: A new dual-activator luminescence system has been designed to improve temperature measurement performance; experimental results show that different ions have different sensitivities to temperature, and utilizing two types of ions for temperature measurement yields good results.
MATERIALS ADVANCES
(2021)