We report the synthesis and characterization of undoped and various levels of Ce(3+) doped ZnS nanocrystal. The structure and size of the products were studied by X-ray diffraction (XRD). The existence of functional groups was identified by Fourier transform infrared spectrometry (FT-IR). The UV-Visible measurements reveal that the synthesized products are blue shifted when compared with bulk phase of ZnS as a result of quantum confinement effect. The PL studies show an enhancement in the intensity of emission band in the UV region on increased Ce(3+) doping. The morphology of the products was evaluated by Field emission scanning electron microscope (FESEM) and High resolution transmission electron microscopy (FESEM). The presence of Ce(3+) was confirmed by Energy dispersive spectral analysis (EDS). The thermal stability of pure and doped products was analyzed by thermo gravimetric and differential thermal analysis (TG-DTA).
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http://dx.doi.org/10.1016/j.saa.2013.09.012 | DOI Listing |
Materials (Basel)
February 2025
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China.
This paper demonstrates the application of eutectic welding to Ce:YAG transparent ceramics for reliable detection and imaging of UV emission, particularly focusing on demanding conditions, such as high repetition rate, high energy, and high vacuum. A series of Ce:YAG transparent ceramics with different Ce doping concentrations (0.1 at%, 0.
View Article and Find Full Text PDFInorg Chem
March 2025
State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China.
Luminescent properties of phosphors can be modified and improved by constructing energy transfer. In this article, a series of Ce- and/or Eu-doped Ca-α-sialon phosphors were synthesized through the traditional solid-state reaction method. The construction of an efficient energy transfer enables the modulation of a wide range of light colors, thereby facilitating a gradual color change from blue-green (0.
View Article and Find Full Text PDFSci Rep
March 2025
Mathematical and Natural Science Department, Faculty of Engineering, Egyptian Russian University, Badr, 11829, Cairo, Egypt.
Being one of the most important tools in industrial and medical fields, the red-NIR laser has caught a lot of attention in research studies to improve its emission efficiency and the stability of its lasing materials, both thermally and mechanically. In this regard, the emission intensity of the red-NIR laser generated from Er ions doped glass network was enhanced by adding Yb, Nd, and Ce ions. A host glass network of 44PO-15ZnO-10PbO-15NaF-15MgF-1ErO was proposed as a red-NIR lasing material and was reinforced by 0.
View Article and Find Full Text PDFJ Fluoresc
March 2025
Department of Chemistry, Faculty of Arts and Science, Burdur Mehmet Akif Ersoy University, Burdur, Turkey.
The aim of this study is to investigate the structure, particle morphology, photoluminescence, and chemical composition of materials for application in light-emitting devices. The present work primarily focuses on the synthesis and characterization of Ba₃CdSi₂O₈:RE (RE: Ce³⁺, Eu³⁺, and Dy³⁺) phosphors via the solid-state reaction method. XRD and FT-IR techniques were used to characterize the phosphors.
View Article and Find Full Text PDFAppl Radiat Isot
February 2025
Chair for Optoelectronic Materials, Department of Physics UKW in Bydgoszcz, Powstańców Wielkopolskich str., 2, 85-090, Bydgoszcz, Poland; Medical Physics Department, Prof. Franciszek Łukaszyk Oncology Center, I. Romanowska str., 2, 85-796, Bydgoszcz, Poland. Electronic address:
A concept for studying the effects of secondary radiation in boron neutron capture therapy based on the application of multilayer composite scintillators was proposed in this work. Such composite scintillators can be used for simultaneous measurement of the dose of various types of ionizing radiation, including Li ions, α-particles and γ-rays. For this purpose, three types of composite detectors based on the single crystalline films and single crystals of YAlO and LuAlO garnets, doped with Ce, Pr and Sc ions, were produced using the liquid phase epitaxy growth method.
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