Topological luminophor Y2O3:Eu3++Ag with high electroluminescence performance

Wang, Mingzhong; Xu, Longxuan; Chen, Guowei; Zhao, Xiaopeng

doi:10.48550/arxiv.1810.03242

Cited by 1 publication

(1 citation statement)

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“…In this paper, a smart meta-superconductor was prepared by doping inhomogeneous phase of luminescent nanocomposite Y2O3:Eu 3+ /Ag, which has the strong luminescence characteristic, in MgB2 to improve the TC of the MgB2-based superconductor. This inhomogeneous phase of nanocomposite illuminator Y2O3:Eu 3+ /Ag was prepared by our group, its EL intensity is three times higher than that of Y2O3:Eu 3+ due to the composite illumination of electroluminescence and photoluminescence [48]. Two kinds of nanocomposite illuminator Y2O3:Eu 3+ /Ag with different sizes, namely, micro Y2O3:Eu 3+ /Ag (m-Y2O3:Eu 3+ /Ag) and nano Y2O3:Eu 3+ /Ag flakes (n-Y2O3:Eu 3+ /Ag), are prepared.…”

Section: Introductionmentioning

confidence: 99%

Smart meta-superconductor MgB2 constructed by the dopant phase of luminescent nanocomposite

Chen

Wang

et al. 2019

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On the basis of the idea that the injecting energy will improve the conditions for the formation of Cooper pairs, a smart meta-superconductor (SMSC) was prepared by doping luminescent nanocomposite Y2O3:Eu3+/Ag in MgB2. To improve the superconducting transition temperature (TC) of the MgB2-based superconductor, two types of Y2O3:Eu3+/Ag, which has the strong luminescence characteristic, with different sizes were prepared and marked as m-Y2O3:Eu3+/Ag and n-Y2O3:Eu3+/Ag. MgB2 SMSC was prepared through an ex situ process. Results show that when the dopant content was fixed at 2.0 wt.%, the TC of MgB2 SMSC increased initially then decreased with the increase in the Ag content in the dopant. When the Ag content is 5%, the TC of MgB2 SMSC was 37.2–38.0 K, which was similar to that of pure MgB2. Meanwhile, the TC of MgB2 SMSC doped with n-Y2O3:Eu3+/Ag increased initially then decreased basically with the increase in the content of n-Y2O3:Eu3+/Ag, in which the Ag content is fixed at 5%. The TC of MgB2 SMSC doped with 0.5 wt.% n-Y2O3:Eu3+/Ag was 37.6–38.4 K, which was 0.4 K higher than that of pure MgB2. It is thought that the doping luminescent nanocomposite into the superconductor is a new means to improve the TC of SMSC.

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Section: Introductionmentioning

confidence: 99%