Article
Materials Science, Multidisciplinary
A. N. Gruzintsev
Summary: The emission and visible photoluminescence excitation spectra of Y2O2S:Er (1 at %) ceramics were investigated. The results showed that the visible anti-Stokes luminescence of the erbium-doped material exhibited higher intensity when pumped with the I-4(13/2) metastable state. The study also developed an optical excitation method for the metastable states in anti-Stokes luminescence.
INORGANIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Roman Maksimov, Vladislav Shitov, Vladimir Osipov, Oleg Samatov, Dmitry Vakalov, Fedor Malyavin, Liza Basyrova, Pavel Loiko, Patrice Camy
Summary: Compositionally mixed (yttria-scandia) sesquioxide transparent ceramics doped with erbium ions were fabricated by vacuum sintering with the addition of ZrO2. The ceramics exhibited a single-phase structure and showed promising optical properties for mid-infrared lasers.
Article
Materials Science, Ceramics
Shijie Li, Kai Ma, Yucheng Ye, Wenhan Han, Sihui Li, Yuting Shi, Ya Tang, Gang Cheng, Xinghua Zhu, Jianqi Qi
Summary: Through vacuum sintering, Erbium-doped Y2Zr2O7 transparent ceramics were successfully fabricated. The relationship between annealing temperature and sample structure was investigated, revealing the impact of oxygen vacancy. The annealing temperature significantly influenced the structure and optical properties of the ceramics.
CERAMICS INTERNATIONAL
(2022)
Article
Optics
Liza Basyrova, Pavel Loiko, Wei Jing, Yicheng Wang, Hui Huang, Elena Dunina, Alexey Kornienko, Liudmila Fomicheva, Bruno Viana, Uwe Griebner, Valentin Petrov, Magdalena Aguilo, Francesc Diaz, Xavier Mateos, Patrice Camy
Summary: A transparent mixed 7 at.% Er:(Lu,Sc)(2)O-3 sesquioxide ceramic was fabricated by hot isostatic pressing of commercial sesquioxide powders at 1750 degrees C/200 MPa in argon atmosphere. It exhibited excellent optical properties with high signal transmission and high slope efficiency. The study of crystal-field splitting of Er3+ multiplets revealed the significant inhomogeneous broadening of spectral bands in the ceramic material.
JOURNAL OF LUMINESCENCE
(2021)
Article
Materials Science, Ceramics
Shuyao Cao, Qian Chen, Yangping Li, Changying Wu, Jie Xu, Guanghua Cheng, Feng Gao
Summary: This study demonstrated the anisotropic characteristics of KSN-Sm textured ceramics, showing significant differences in reflectivity, luminescence, and luminescence modulation properties in different grain-orientated directions. These optical anisotropies were attributed to different refractive indexes, distributions of photochromic centers, and energy transfer rates in various orientations, providing potential for multidirectional data recording and enhancing anti-counterfeiting ability.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
News Item
Chemistry, Multidisciplinary
Louise S. Natrajan, Stephen Faulkner
Summary: The complex containing the unstable isotope Es-254 has been synthesized on a nanogram scale. Analysis shows a blue shift of Es(iii) luminescence upon complexation, indicating that the ligand serves as an antenna to sensitize the excited state.
Article
Chemistry, Multidisciplinary
Huabao Shang, Deren Yang, Dongsheng Li
Summary: We prepared high-intensity luminescent films by doping lithium, which enhances the near-infrared and up-conversion luminescence of erbium silicate by regulating the lattice structure. This method could be universally applicable to enhance luminescence in erbium compounds.
Article
Chemistry, Organic
Michael O. Wolf, Jennifer Yuan, Lanting Jiang, Tatsuya Nishimura, Ethan R. Sauve, Duane Hean, Katshuiro Maeda
Summary: In this study, the chiroptical properties of a series of axially chiral sulfur-bridged dimers were investigated, revealing the changes in their optical properties as a result of oxidation. Computational calculations were employed to elucidate the variations in photophysical properties.
JOURNAL OF ORGANIC CHEMISTRY
(2022)
Article
Optics
Yanqing Fu, Chengkang Li, Liu Yang, Gangjie Zhou, Changgui Lin, Shiliang Kang
Summary: In this study, enhanced mid-infrared (MIR) emission was achieved in Pr3+-doped chalcogenide glass ceramics (ChGCs). By controlling the heat treatment process, biphasic-phase nanocrystals were successfully precipitated in the glass host, leading to a significant increase in the emission intensity. The obtained ChGC exhibited large stimulated emission cross sections, making it a promising candidate for MIR laser applications.
JOURNAL OF LUMINESCENCE
(2022)
Article
Materials Science, Ceramics
Shuyao Cao, Qian Chen, Yangping Li, Changying Wu, Xiaoying Feng, Jie Xu, Guanghua Cheng, Feng Gao
Summary: In this study, Sm3+ doped KSr2Nb5O15 ceramics with abundant ferroelectric and luminescent properties were synthesized, showing the importance of polarization engineering for luminescence modulation effects.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Daniela Kujawa, Daria Szewczyk, Vitalii Boiko, Damian Beben, Pawel Gluchowski
Summary: Gadolinium, gallium, aluminum garnet doped with cerium and co-doped with dysprosium ions were prepared using sol gel method. The addition of graphene improved the thermal conductivity and fading of persistent luminescence, making it possible for room temperature applications.
Article
Materials Science, Ceramics
Zihan Lu, Jin Tang, Peng Du, Weiping Li, Zhifu Liu, Jun Wang, Laihui Luo
Summary: The study prepared ferroelectric ceramics via solid-state reaction and achieved various luminescence modes and color-tunable luminescence effects. A multifunctional optical device was fabricated using a PDMS matrix, showing promising prospects in optical information storage and anti-counterfeiting.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Fengyu Jia, Shengnan Xu, Guodong Zhang, Tianli Zhao, Xiangyu Zou, Hongbo Zhang
Summary: Dy2O3-doped transparent glass-ceramics containing Ca2Ti2O6 crystal phase were synthesized, and the optimal heat treatment condition and doping concentration were determined. The addition of Mg2+ effectively increased the luminescence intensity.
Article
Materials Science, Multidisciplinary
Shenrui Ye, Xiaomeng Yin, Jiameng Chao, Hui Lin, Zhaoxia Han, Ruijin Hong, Dawei Zhang
Summary: In this study, a series of (Y0.897-xLuxGd0.1)3Al5O12:0.3at%Ce phosphor ceramics were prepared by vacuum sintering, and the effect of Lu3+ doping on their structure and luminescence properties was investigated. The results showed that Lu3+ doping weakened the crystal field and caused blueshift in the photoluminescence spectrum. The Y2.391Gd0.3Lu0.3Al5O12:0.3at%Ce phosphor ceramic exhibited a redshift compared to Y3Al5O12:0.3at%Ce. Additionally, the phosphor conversion efficacy and PL quantum yield of Y2.391Gd0.3Lu0.3Al5O12:0.3at%Ce were improved compared to Y2.691Gd0.3Al5O12:0.3at%Ce. These findings suggest that Y2.691-xGd0.3LuxAl5O12:0.3at%Ce phosphor ceramics have the potential to be used in high power/high brightness solid-state light sources.
Article
Engineering, Electrical & Electronic
Liwen Wang, Jiangting Wang, Kaishuo Liu, Chengjian Yu, Hua Wang, Jiwen Xu, Ling Yang, Wei Qiu
Summary: Er-doped 0.91(K0.5Na0.5)NbO3-0.09Sr(Mg0.5Ta0.5)O-3 transparent fluorescent ceramics were prepared using the solid-phase method. The presence of Er3+ in the ceramics resulted in better up-conversion luminescence properties. The ceramics also retained their electrical properties and showed some energy storage capabilities.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
