Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Mihail Secu"'
Autor:
Viorel Cîrcu, Constantin P. Ganea, Mihail Secu, Doina Manaila-Maximean, George Cătălin Marinescu, Roua Gabriela Popescu, Iuliana Pasuk
Publikováno v:
Molecules, Vol 28, Iss 10, p 4196 (2023)
Two neutral copper(I) halide complexes ([Cu(BTU)2X], X = Cl, Br) were prepared by the reduction of the corresponding copper(II) halides (chloride or bromide) with a benzoylthiourea (BTU, N-(3,4-diheptyloxybenzoyl)-N′-(4-heptadecafluorooctylphenyl)t
Externí odkaz:
https://doaj.org/article/b0d5106cb90e436d8fcaec5d57cc2a4b
Publikováno v:
Magnetochemistry, Vol 9, Iss 1, p 11 (2022)
Glassy nanocomposites containing Yb3+/Er3+-doped GdF3 and LiGdF4 nanocrystals have been prepared by controlled crystallization of the xerogel and the structural, up-conversion luminescence, and magnetic properties were analyzed and discussed. Structu
Externí odkaz:
https://doaj.org/article/bdc74cb19329460d90a1f5957513e0d0
Publikováno v:
Carbon Trends, Vol 5, Iss , Pp 100119- (2021)
Nanocomposites of isotactic polypropylene loaded by various amounts of vapor-grown carbon nanotubes ranging from 0 to 20% wt. were obtained by extrusion. Raman investigations on these nanocomposites are reported. The nanocomposites were irradiated us
Externí odkaz:
https://doaj.org/article/4fd242454c0f4da9b761db6da9d37b11
Publikováno v:
Nanomaterials, Vol 12, Iss 17, p 3016 (2022)
The remarkable properties of Eu2+-activated phosphors, related to the broad and intense luminescence of Eu2+ ions, showed a high potential for a wide range of optical-related applications. Oxy-fluoride glass-ceramic containing Europium (II)-doped CaF
Externí odkaz:
https://doaj.org/article/58530c9cfa194bbda72baa3203631c07
Publikováno v:
Magnetochemistry, Vol 8, Iss 2, p 22 (2022)
Luminescent nanocrystals embedded into silica microspheres were shown to be useful for silica labeling for biological applications, ensuring mechanical and chemical stability, nontoxicity, biocompatibility and optical properties. We used sol–gel te
Externí odkaz:
https://doaj.org/article/442b5ebc685f427e91acc64f13c9dae8
Publikováno v:
Materials, Vol 14, Iss 22, p 6871 (2021)
Rare-earth doped oxyfluoride glass ceramics represent a new generation of tailorable optical materials with high potential for optical-related applications such as optical amplifiers, optical waveguides, and white LEDs. Their key features are related
Externí odkaz:
https://doaj.org/article/409f8a14e5234a51b9db000852492ae4
Autor:
Mehdi Souli, Yassine Bensalem, Mihail Secu, Cristina Bartha, Monica Enculescu, Arbi Mejri, Najoua Kamoun-Turki, Petre Badica
Publikováno v:
Results in Physics, Vol 13, Iss , Pp - (2019)
Polycrystalline In2S3 thin films have been grown on SnO2/glass substrates by chemical bath deposition technique and irradiated at different high gamma doses 3, 7, 15 and 40 kGy. X-ray diffraction, Scanning Electron Microscope (SEM), Energy Dispersive
Externí odkaz:
https://doaj.org/article/feb7a3f599d74890ac68b2912e654565
Autor:
Florentina L. Chiriac, Monica Iliş, Augustin Madalan, Doina Manaila-Maximean, Mihail Secu, Viorel Cîrcu
Publikováno v:
Molecules, Vol 26, Iss 7, p 2017 (2021)
This work focuses on the investigation of the liquid crystalline behavior and luminescence properties of the lanthanide complexes of Eu(III), Sm(III) and Tb(III) with N-biphenyl-alkylated-4-pyridone ligands. The organic ligands having a biphenyl grou
Externí odkaz:
https://doaj.org/article/5f0b9f0f9fdf4390a805e02c1a768bc3
Autor:
Mihail Secu, Corina Elisabeta Secu
Publikováno v:
Crystals, Vol 10, Iss 12, p 1101 (2020)
An europium doped BaO–B2O3–BaCl2 chloroborate glass-ceramic containing a BaCl2 nanocrystalline phase was produced by melt-quenching followed by glass crystallization during annealing. Structural and morphological investigations using x-ray diffra
Externí odkaz:
https://doaj.org/article/3f87ab3245c94332ad0eebd0f13491ce
Publikováno v:
Materials, Vol 13, Iss 13, p 2980 (2020)
In this study, we report on the structural, magnetic, and optical properties of Tb3+-doped CeF3 nanocrystals prepared via a polyol-assisted route, followed by calcination. X-ray diffraction analysis and electron microscopy investigations have shown t
Externí odkaz:
https://doaj.org/article/06ad2f48f1fa41eb83975fcc4f50c7c1