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Structural Design and Broad Applications of Functional Nanomaterials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Nanomaterials and Nanotechnology".

Deadline for manuscript submissions: closed (20 April 2024) | Viewed by 1328

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Zhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou, China
Interests: nanostructured thermal-sprayed coatings; thermal spraying

Special Issue Information

Dear Colleagues,

Over the past few decades, nanomaterials have progressed significantly, and they have attracted considerable attention due to their outstanding properties and widespread applications. For example, adding nanoparticles can endow coating materials with a higher performance, better corrosion protection function, optical property, etc. Apart from this, nanomaterials also play an important role in the field of energy conversion and storage, electronics and photonics, and biomedicine.

The aim of this Special Issue is to attract manuscripts which study the structure and fabrication techniques of nanomaterials with a wide range of applications. Studies on the properties of nanosized materials, such as mechanical, thermal, magnetic, optical, or electrical conductivity, are also welcome.

Topics of interest for this Special Issue include, but are not limited to:

  • synthesis;
  • organic/inorganic nanocomposites;
  • nanoscale coatings;
  • mechanical property;
  • energy storage/conversion

Dr. Feifei Zhou
Guest Editor

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Keywords

  • 2D materials
  • functional nanomaterials
  • structure
  • chemical vapor deposition

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Published Papers (1 paper)

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Research

12 pages, 388 KiB  
Article
Theoretical Study of Co-Doping Effects with Different Ions on the Multiferroic Properties of BiFeO3 Nanoparticles
by Angel T. Apostolov, Iliana N. Apostolova and Julia M. Wesselinowa
Materials 2024, 17(17), 4298; https://doi.org/10.3390/ma17174298 - 30 Aug 2024
Cited by 2 | Viewed by 1053
Abstract
Using a microscopic model and the Green’s function theory, the size and co-doping effects on the multiferroic and optical (band gap) properties of BiFeO3 (BFO) nanoparticles are investigated. The magnetization increases, whereas the band gap energy decreases with decreasing nanoparticle size. The [...] Read more.
Using a microscopic model and the Green’s function theory, the size and co-doping effects on the multiferroic and optical (band gap) properties of BiFeO3 (BFO) nanoparticles are investigated. The magnetization increases, whereas the band gap energy decreases with decreasing nanoparticle size. The substitution with Co/Mn, Nd/Sm, Ce/Ni, and Cd/Ni is discussed and explained on a microscopic level. By the ion co-doping appear different strains due to the difference between the doping and host ionic radii, which leads to changes in the exchange interaction constants for tuning all properties. It is observed that by co-doping with Nd/Sm at the Bi site or with Co/Mn at the Fe site, the multiferroic properties are larger than those by doping with one ion. Moreover, by doping with Ni, the multiferroic properties are reduced. But by adding another ion (for example Ce or Cd), an increase in these properties is obtained. This shows the advantages of the co-doping, its flexibility, and its greater possibility of tuning the multiferroic properties compared to single ion substitution. The band gap energy decreases for all co-dopants. The polarization increases with increasing magnetic field. This is evidence of magnetoelectric coupling, which is enhanced by co-doping with Co/Mn. The observed theoretical results are in good qualitative agreement with the existing experimental data. Full article
(This article belongs to the Special Issue Structural Design and Broad Applications of Functional Nanomaterials)
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