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Jiacheng Yao
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#1Donglai Han (Changchun University of Science and Technology)
#2Jiacheng Yao (Jilin Normal University)
Last.Jinghai Yang (Jilin Normal University)H-Index: 33
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A commercial SERS substrate does not only require strong enhancement, but also can be reused and recycled in actual application. Herein, Fe3O4/SiO2/ZnO/Ag (FSZA) have been synthesised, which consisted of Fe3O4 core with strong magnetic field response and an intermediate SiO2 layer as an electronic barrier to keep the stability of magnetite particles and outer ZnO and Ag as the effective layers for detecting pollutants. The SERS enhancement factor (EF) of the FSZA was ~8.2 × 105. The enhancement ...
#1Jiacheng Yao (Jilin Normal University)
#2Yingnan Quan (Jilin Normal University)
Last.Jinghai Yang (Jilin Normal University)H-Index: 33
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Here, we develop a new method to improve the surface-enhanced Raman spectroscopy (SERS) activity of ZnO using Mg doping combined with noble metals. Highly aligned silver nanoparticles (AgNPs) decorated on an array of Mg-doped ZnO (MZO@Ag) were fabricated. Using rhodamine 6G as the probe molecule, SERS indicated that the MZO@Ag substrate possesses perfect sensitivity, homogeneity, and chemical stability. The enhancement mechanism of this substrate was analyzed in detail, and finite-difference tim...
Compared with noble metals, semiconductors have been gradually exploited more as another type of SERS substrate materials due to their distinctive advantages. However, an inferior enhancement factor (EF) is a fatal weakness of the semiconductors. So, we combined the strong LSPR coupling between Ag particles and the charge transport channels induced by Mg doping to create a high performance SERS substrate. These magnesium-doped zinc oxide–Ag nanoparticles (ZMOA) exhibited 18 times higher SERS enh...
#1Ming Gao (Jilin Normal University)H-Index: 23
#2J.C. Yao (Jilin Normal University)H-Index: 1
Last.Yang Liu (Jilin Normal University)H-Index: 17
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Abstract A novel white-emitting ZnO@Eu 2 O 3 core/shell nanomaterials was synthesized by a green chemical method. The temperature and pressure dependence of the photoluminescence (PL) transition associated with the fundamental bandgap of ZnO@Eu 2 O 3 core/shell nanomaterials have been studied. The activation energy of ZnO@Eu 2 O 3 is 0.27 eV, which is higher than the commercial Y 2 O 3 : Eu 3+ . The near-bandedge emission is found to shift toward higher energy with applied pressure at a rate of ...
#1Ming Gao (Jilin Normal University)H-Index: 23
#2C. Yan (Jilin Normal University)H-Index: 1
Last.J.H. Yang (Jilin Normal University)H-Index: 6
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Abstract The structural, optical properties and catalytic activity of ZnO@Eu 2 O 3 core-shell nanostructutres have been investigated systematically. Sharp intense red emissions in the range of 580–650 nm due to the intra-4f transition of Eu 3+ ions are observed from the sample. It is found that some of the Eu 3+ ions are in the Eu 2 O 3 -like state located at the surface of ZnO and others are doped into ZnO host. Incorporation of Eu 3+ ions into a ZnO host resulted in deterioration in crystal qu...
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