Article
Chemistry, Inorganic & Nuclear
Hang Liu, Mingtai Liu, Kailin Wang, Bo Wang, Xiukai Jian, Guangyao Bai, Yuhong Zhang
Summary: BaIn2O4:Yb3+/Tm3+/RE3+ (RE = Er3+, Ho3+) upconversion (UC) phosphors synthesized via sol-gel method show high UC emission efficiencies and bright emission visible to the naked eye. The luminescence intensity ratio (LIR) technology is used to study the optical temperature-sensing properties, revealing the maximum absolute sensitivity at specific temperatures based on non-thermally coupled levels. BaIn2O4:Yb3+/Tm3+/RE3+ samples exhibit excellent optical temperature-sensing properties and have potential applications in optical thermometry.
DALTON TRANSACTIONS
(2021)
Article
Nanoscience & Nanotechnology
Schindra Kumar Ray, Bhupendra Joshi, Jin Hur
Summary: In this study, rare earth-doped α-NiMoO4 nanoparticles were successfully synthesized, and white light emission was obtained by tuning the concentrations of different dopant ions. The nanoparticles exhibited white color emission and could be potential candidates for white-light devices.
Article
Chemistry, Physical
Karolina Kowalska, Marta Kuwik, Joanna Pisarska, Wojciech A. Pisarski
Summary: This study fabricated multicomponent TiO2-modified germanate glasses co-doped with Yb3+/Ln(3+) (Ln = Pr, Er, Tm, Ho) and demonstrated that the addition of TiO2 significantly enhanced the near-infrared luminescence bands of the glass system. The findings suggest promising applications in optical communications.
Article
Chemistry, Multidisciplinary
Heyan Wu, Yunhao Liang, Yue Ma, Jun Yang, Shanshan Hu
Summary: This work focuses on the synthesis of multi-color luminescence phosphors and the temperature sensitivity of AgBi(MoO4)(2):Yb3+/Er3+. AgBi(MoO4)(2)-based phosphors with uniform and spherical particles were prepared using a simple hydrothermal method, and various colored luminescence phosphors were obtained by doping Ln(3+) ions. The investigation revealed that the fluorescence intensity of AgBi(MoO4)(2):Yb3+/Er3+ decreases with increasing temperature. The absolute sensitivity of the phosphor reached a maximum value of 1.32% K-1 at 463 K, making it suitable for use as a highly sensitive FIR thermometer.
Article
Materials Science, Multidisciplinary
Zheng Ma, Yu-Jing Yang, Yan-Xue Shao, Rui-Qi Piao, Ji-Wei Qi, De-Long Zhang, Yan Wang
Summary: Two studies on the Judd-Ofelt spectroscopic properties of Er3+-doped garnet single crystals yielded different intensity parameter values due to variations in the absorption characteristics of the crystals. These differences in Omega(t) values led to significant discrepancies in relevant spectroscopic parameters.
Article
Materials Science, Multidisciplinary
Feng Chen, Mei-Hong Liu, Rui-Qi Piao, De-Long Zhang, Yan Wang
Summary: In this study, fluorescence spectra of erbium (Er3+) in garnet crystal were measured for visible and infrared electronic transitions. The emission cross-section and absorption cross-section spectra were obtained and compared using different methods, showing consistent results within the error. The transient features of the emissions were also studied, revealing different decay characteristics for infrared and upconverted emissions.
Article
Physics, Condensed Matter
Wei Zhou, Jian Yang, Xiangliang Jin, Yan Peng, Jun Luo
Summary: A novel strategy for optical thermometers using NaYF4:Gd3+/Yb3+/Er3+/Tm3+ nanorods is reported, which generate thermally enhanced near-infrared upconversion emission. The fluorescence intensity ratio (FIR) between Tm3+ near-infrared emission and Er3+ green emission as a function of temperature is studied. Results show that NaYF4:Gd3+/Yb3+/Er3+/Tm3+ nanorods can be used as high-quality candidates for thermometers with high sensitivity and wide temperature range.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Crystallography
Oleg Sidletskiy, Vitalii Gorbenko, Tetiana Zorenko, Yurii Syrotych, Sandra Witkiwicz-Lukaszek, Jiri A. Mares, Romana Kucerkova, Martin Nikl, Iaroslav Gerasymov, Daniil Kurtsev, Alexander Fedorov, Yuriy Zorenko
Summary: This paper addresses the development of composite scintillation materials that can provide simultaneous real-time monitoring of different types of ionizing radiation. The materials are capable of distinguishing the type of radiation through the different time characteristics of the scintillation response, making them promising for various applications.
Article
Materials Science, Multidisciplinary
Yuchao Shi, Jing Li, Wenhao Cui, Yaru Peng, Yuxin Huang, Li Chen
Summary: Monodisperse In2O3: Yb3+/Er3+ upconverting nanoparticles were successfully synthesized via solvothermal method with controllable size around 31nm. The obtained UCNPs exhibit strong upconversion luminescence and fine stability with SiO2 protecting layer, making them a potential oxide upconverting material for biological applications. The UCL properties and possible energy transfer processes of In2O3: Yb3+/Ho3+ and In2O3: Yb3+/Tm3+ NPs were also investigated, showing promising results.
Article
Materials Science, Multidisciplinary
Bina Chaudhary, Dhani Ram Dhakal, Tae-Ho Kim, Soo Wohn Lee, Yuwaraj K. Kshetri
Summary: This study demonstrates the super broadband infrared downshifting emission and strong two-photon upconversion emission in lanthanides (Er3+, Ho3+, and Tm3+)-doped alpha-SiAlON ceramics upon 793 nm excitation. The efficient energy transfer among the lanthanides ions and ground state absorption in Er3+ and Tm3+ are responsible for the observed spectroscopic properties.
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
(2021)
Correction
Chemistry, Multidisciplinary
Heyan Wu, Yunhao Liang, Yue Ma, Jun Yang, Shanshan Hu
Summary: This paper investigates the up-conversion luminescence properties and temperature sensitivity of AgBi(MoO4)2 phosphors. The results of this study are of significant importance for applications in temperature sensors and optoelectronic displays.
Article
Materials Science, Multidisciplinary
Enrico Cavalli, Eugenio Damiano, Mauro Tonelli
Summary: This paper systematically investigates the spectroscopic properties of YPO4 crystals activated with Ho3+, Er3+ or Tm3+ to gather preliminary device potential information. Relevant information on radiative properties is obtained through Judd-Ofelt analysis of polarized absorption spectra in the UV-vis-NIR region at room temperature. Polarized emission spectra are measured at 77 and 300 K in the visible and NIR regions upon laser excitation, identifying and characterizing transitions of major interest for applications. Decay profiles of the main emission manifolds at room temperature provide information about non-radiative processes in the crystals. Stimulated emission cross sections are estimated for NIR laser transitions, suggesting these compounds are suitable active media for laser operation.
Review
Chemistry, Physical
Cristina Gheorghe, Stefania Hau, Lucian Gheorghe, Flavius Voicu, Madalin Greculeasa, Alin Broasca, George Stanciu
Summary: The spectroscopic characteristics of RE3+ ions (RE = Sm, Dy, and Pr) doped in partially disordered Ca3Nb1.6875Ga3.1875O12-CNGG and Ca3Li0.275Nb1.775Ga2.95O12-CLNGG crystals are reviewed in detail. The crystals were grown using the Czochralski crystal growth technique and high-resolution absorption and emission measurements, as well as emission dynamics measurements, were performed. Based on the Judd-Ofelt parameters, it is concluded that CNGG:RE3+ and CLNGG:RE3+ (RE = Sm, Dy, and Pr) crystals show promise as laser materials in the visible range.
Article
Engineering, Electrical & Electronic
Hanyu Xu, Mengmeng Dai, Kejie Li, Aijun Li, Tianqi Sheng, Zuoling Fu
Summary: Luminescence intensity ratio (LIR) thermometry was established in Cs-based fluorides based on distinct up-conversion luminescence centers. By comparing the luminescence intensity of different up-conversion emission ions, the most suitable ion for the perovskite-like Cs3YF6 material was determined. Among the samples, Er-doped Cs3YF6 showed the best performance with a relative sensitivity of 0.96% K-1 according to the LIR fitting findings. However, the absolute sensitivity of Cs3YF6: Yb, Tm was extremely high, suggesting that it is not reliable in the LIR temperature evaluation system due to the temperature resolution.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Hongxia Guan, Yunfei Li
Summary: A series of emission-tunable Na(Y1.5Na0.5)F-6:RE3+(Dy3+, Tb3+, Eu3+, Tm3+, Ho3+) phosphors were synthesized by adjusting reaction conditions to obtain products with different morphologies. The emission color of the phosphors can be changed by adjusting the type and amount of RE3+ ions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Radoslaw Lisiecki, Witold Ryba-Romanowski
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Chemistry, Physical
Barbara Klimesz, Radoslaw Lisiecki, Witold Ryba-Romanowski
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Optics
Jaroslaw Komar, Radoslaw Lisiecki, Michal Glowacki, Marek Berkowski, Maria Suszynska, Witold Ryba-Romanowski
JOURNAL OF LUMINESCENCE
(2020)
Article
Optics
Adam Strzep, Michal Glowacki, Maksymilian Szatko, Karolina Potrzasaj, Radoslaw Lisiecki, Witold Ryba-Romanowski
JOURNAL OF LUMINESCENCE
(2020)
Article
Materials Science, Ceramics
Radoslaw Lisiecki, Mikolaj Lukaszewicz, Barbara Klimesz, Witold Ryba-Romanowski
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2020)
Article
Optics
Boguslaw Macalik, Radoslaw Lisiecki, Robert M. Kowalski, Witold Ryba-Romanowski
JOURNAL OF LUMINESCENCE
(2020)
Article
Chemistry, Inorganic & Nuclear
E. Kucharska, K. Hermanowicz, P. Solarz, M. Ptak, J. Hanuza, W. Ryba-Romanowski, P. Drozdzewski
Article
Materials Science, Multidisciplinary
R. Lisiecki, B. Macalik, R. Kowalski, A. Strzep, M. Glowacki, M. Berkowski, W. Ryba-Romanowski
Article
Materials Science, Multidisciplinary
Mikolaj Lukaszewicz, Radoslaw Lisiecki, Barbara Klimesz, Witold Ryba-Romanowski
MATERIALS RESEARCH BULLETIN
(2020)
Article
Chemistry, Physical
Joanna Pisarska, Wojciech A. Pisarski, Radoslaw Lisiecki, Witold Ryba-Romanowski
Summary: This study investigated the spectroscopic properties of europium and erbium ions in heavy metal oxide glasses, revealing that the erbium ion's luminescence lifetime decreases with increasing phonon energy in the glass matrix, while the europium ion's lifetime increases with increasing phonon energy. The findings suggest that the measured lifetimes of europium ions equal the radiative lifetimes in all heavy metal oxide glasses.
Article
Chemistry, Physical
Radoslaw Lisiecki, Jaroslaw Komar, Boguslaw Macalik, Michal Glowacki, Marek Berkowski, Witold Ryba-Romanowski
Summary: Optical absorption and luminescence spectra of different crystal samples were studied at different temperatures, revealing higher relative thermal sensitivities for YAl3(BO3)(4):Dy3+ and Lu2SiO5:Dy(3+). Analysis of the crystal structure characteristics showed that the observed differences in thermosensitive features were not directly attributed to structural factors, but were related to the rates of radiative transitions of Dy3+.
Article
Crystallography
Radoslaw Lisiecki, Boguslaw Macalik, Robert Kowalski, Jaroslaw Komar, Witold Ryba-Romanowski
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)
