An examination of manganese silicates and germanates revealed unusual structural motifs and extremely different chemistries, with identical hydrothermal reactions forming KMnSiO versus KMnGeO(OH)(HO). The germanate is exceptional in both its -axis length (exceeding 76 Å) and unit cell volume (nearly 18000 Å), the largest known polygermanate structure to our knowledge.
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http://dx.doi.org/10.1021/acs.inorgchem.0c02303 | DOI Listing |
Heliyon
November 2024
Department of Physics, School of Physical Sciences, Federal University of Technology, Minna, Nigeria.
Ionizing radiation from natural and many synthetic sources is a remarkable tool in many scientific, production, quality control, food preservation, medical, security, and other technological processes. The need to protect humans (public and personnel), gadgets, the environment, and animals from the harmful effects of radiation, while maintaining and expanding the scope of application has made radiation protection an important topic to discuss. Among the methods and materials available for radiation control, shielding and the use of glass shields are the most effective and attractive methods and materials, respectively.
View Article and Find Full Text PDFJ Phys Chem C Nanomater Interfaces
November 2024
Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, Berlin D-14195, Germany.
Sci Adv
October 2024
Department of Chemistry, Princeton University, Princeton, NJ 08544, USA.
Pyroxenes (AMXO) consisting of infinite one-dimensional edge-sharing MO chains and bridging XO tetrahedra are fertile ground for finding quantum materials. Thus, here, we have studied calcium cobalt germanate (CaCoGeO) and calcium cobalt silicate (CaCoSiO) crystals in depth. Heat capacity data show that the spins in both compounds are dominantly Ising-like, even after being manipulated by high magnetic fields.
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
February 2025
Rare Earth College, Jiangxi University of Science and Technology, Ganzhou, Jiangxi 341000, China; National Rare Earth Functional Material Innovation Center, Ganzhou, Jiangxi 341000, China; Key Laboratory of Rare Earths, Chinese Academy of Sciences, Ganzhou, Jiangxi Province 341119, China. Electronic address:
Er-doped glasses and fibers with broadband near infrared (NIR) emission have been widely applied in EDFA. Limited by optical gain band of Er-doped glasses and fibers, it was hardly meet to the demands of broadband amplification in the C + L band. In this work, six glass matrixes were employed for discussing the influence of glass matrix on the Stark splitting of Er and the wavelength of laser output and amplification.
View Article and Find Full Text PDFDalton Trans
September 2024
College of Chemistry & Materials Science, Longyan University, Longyan, Fujian, 364000, China.
The development of novel narrow-band emitting phosphors with high efficiency and stability is of great significance for WLED backlights. In recent years, the research on Bi-activated narrow-band emitting phosphors has gained significant attention for developing novel phosphors for WLED backlight applications. This Frontiers article presents recent advances in Bi-activated narrow-band emitting phosphors, encompassing their coordination environment and photoluminescence properties.
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