Synthesis and luminescent properties of CaTiO3: Pr3+ microfibers prepared by electrospinning method
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TLDR
The luminescence intensity, quantum efficiency, and the lifetime have been studied as a function of the doping concentration of Pr(3+) in the CaTiO(3) samples.Abstract:
One-dimensional Pr3+-doped CaTiO3 microfibers were fabricated by a simple and cost-effective electronspinning process. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric and differential analysis (TG-DTA), scanning electron microscopy (SEM), energy-dispersive X-ray spectrum (EDS), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), photoluminescence (PL), quantum efficiency (QE), and cathodoluminescence (CL) spectra as well as kinetic decays were used to characterize the samples. Under ultraviolet excitation and low-voltage electron beams (1-3 kV) excitation, the CaTiO3:x Pr3+ samples show the red emission at 612 nm, corresponding to 1D2-3H4 transition of Pr3+. The luminescence intensity, quantum efficiency, and the lifetime have been studied as a function of the doping concentration of Pr3+ in the CaTiO3 samples.read more
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References
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Electrospinning of Nanofibers: Reinventing the Wheel?†
Dan Li,Younan Xia +1 more
TL;DR: An overview of electrospinning can be found in this article, where the authors focus on progress achieved in the last three years and highlight some potential applications associated with the remarkable features of electro-spun nanofibers.
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Nanobeam mechanics: Elasticity, strength, and toughness of nanorods and nanotubes
TL;DR: In this paper, the Young's modulus, strength, and toughness of nanostructures are evaluated using an atomic force microscopy (AFM) approach. And the results showed that the strength of the SiC NRs were substantially greater than those found previously for larger SiC structures, and they approach theoretical values.
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Multidimensional quantum well laser and temperature dependence of its threshold current
Yasuhiko Arakawa,H. Sakaki +1 more
TL;DR: In this paper, a new type of semiconductor laser is studied, in which injected carriers in the active region are quantum mechanically confined in two or three dimensions (2D or 3D), and the effects of such confinements on the lasing characteristics are analyzed.
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Range of 1-10 kev Electrons in Solids
TL;DR: The range of 1-10 kev electrons in metals and phosphors has been measured by recording the light output as a function of energy from a sample consisting of a metallic layer deposited on a transparent phosphor layer as discussed by the authors.