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Magnetochemistry
Special Issues
Perovskite Materials: Preparation, Crystal Structure and Magnetic Properties
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Perovskite Materials: Preparation, Crystal Structure and Magnetic Properties

A special issue of Magnetochemistry (ISSN 2312-7481). This special issue belongs to the section "Magnetic Materials".

Deadline for manuscript submissions: closed (31 May 2023) | Viewed by 3698

Special Issue Editor

Prof. Dr. Hui Shen

E-Mail Website
Guest Editor
School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai, China
Interests: perovskite solar cells; photoelectric materials; magnetic properties; preparation and application

Special Issue Information

Dear Colleagues,

The 21st century has introduced a novel era of perovskite materials, which are a class of advanced crystalline materials that have been rapidly developed for applications in various optoelectronic devices, such as emerging thin-film photovoltaics (PVs). Owing to their versatile optoelectronic properties, e.g., high absorption coefficient, good charge carrier mobility, solution processability, possibility to realize them in lower dimensions, their low-cost and abundant precursor materials, perovskite materials are promising alternatives for various optoelectronic applications compared to conventional semiconductor materials.

Responding to the growing interest in perovskites and their study over the last twenty years, we wish to invite as many authors as possible to contribute to this Special Issue of “Perovskite Materials: Preparation, Crystal Structure and Magnetic Properties”. Contributions from all research fields (material scientists, chemists, physicists, engineers, etc.) on the following topics are welcome:

  • Synthesis and characterization of perovskite materials;
  • Novel photoelectric materials;
  • Crystal structure and magnetic properties;
  • Optoelectronic devices.

Prof. Dr. Hui Shen
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Magnetochemistry is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • perovskites
  • photoelectric materials
  • optoelectronic devices
  • crystal structure and magnetic properties

Published Papers (2 papers)

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Research

14 pages, 10265 KiB  
Article
Effect of Bismuth on the Structure, Magnetic and Photocatalytic Characteristics of GdFeO3
by Yudie Ma, Hui Shen, Yating Fang, Heyan Geng, Yu Zhao, Yasheng Li, Jiayue Xu and Yunfeng Ma
Magnetochemistry 2023, 9(2), 45; https://doi.org/10.3390/magnetochemistry9020045 - 29 Jan 2023
Cited by 1 | Viewed by 1390
Abstract
In this paper, a series of Gd1-xBixFeO3 (x = 0, 0.1, 0.3, 0.5, 0.7, 0.9, 1) nanoparticles have been readily synthesized by a green and facile sol–gel method. It gradually changed from the orthorhombic structure (space group Pbnm [...] Read more.
In this paper, a series of Gd1-xBixFeO3 (x = 0, 0.1, 0.3, 0.5, 0.7, 0.9, 1) nanoparticles have been readily synthesized by a green and facile sol–gel method. It gradually changed from the orthorhombic structure (space group Pbnm) to the rhombohedral perovskite structure (space group R3c). Weak ferromagnetic behavior was effectively induced by Bi3+, with reduced magnetization. It was closely related with the lattice distortion of the perovskite structure and modified interactions between Fe-O-Fe. Boosted photocatalytic activities of Gd1-xBixFeO3 were observed for the removal of methylene blue (MB) under the visible light irradiation. In particular, Gd0.5Bi0.5FeO3 showed the optimum photocatalytic efficiency, in which the degradation efficiency reached 82.1% after 180 min of visible light illumination, with good stability and repeatability. The improved performance was mainly ascribed to enhanced visible light absorption, decreased optical band gap from 2.21 to 1.8eV and stronger charge transfer efficiency. A possible photocatalytic mechanism is also proposed according to the band structure. The results indicate that this system will be a promising candidate for the degradation of organic pollutant as a novel magnetically recoverable photocatalyst. Full article
(This article belongs to the Special Issue Perovskite Materials: Preparation, Crystal Structure and Magnetic Properties)
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19 pages, 4815 KiB  
Article
Effect of Metal-Oxide Phase on the Magnetic and Magnetocaloric Properties of La0.7Ca0.3MnO3-MO (MO=CuO, CoO, and NiO) Composite
by Surendra Dhungana, Jacob Casey, Dipesh Neupane, Arjun K. Pathak, Sunil Karna and Sanjay R. Mishra
Magnetochemistry 2022, 8(12), 163; https://doi.org/10.3390/magnetochemistry8120163 - 22 Nov 2022
Cited by 1 | Viewed by 1755
Abstract
The study reports the synthesis and characterization of the magnetic and magnetocaloric effects of metal-oxide (MO) modified La0.7Ca0.3MnO3 perovskites manganite. The powder composite samples, with a nominal composition of (1 − x)La0.7Ca0.3MnO3 [...] Read more.
The study reports the synthesis and characterization of the magnetic and magnetocaloric effects of metal-oxide (MO) modified La0.7Ca0.3MnO3 perovskites manganite. The powder composite samples, with a nominal composition of (1 − x)La0.7Ca0.3MnO3-xMO (Wt.% x = 0.0, 2.5, 5.0), were prepared using the facile autocombustion method, followed by an annealing process. The phase purity and structure were confirmed by X-ray diffraction. Temperature and field-dependent magnetization measurements and Arrott analysis revealed mixed first- and second-order phase transition (ferromagnetic to paramagnetic) in composite samples. The phase transition temperature shifted to lower temperatures with the addition of MO in the composite. A large magnetic entropy change (4.75 JKg−1K−1 at 1T and 8.77 JKg−1K−1 at 5T) was observed in the La0.7Ca0.3MnO3 (LCMO) sample and was suppressed, due to the presence of the MO phase in the composite samples. On the other hand, the addition of MO as a secondary phase in the LCMO samples enhanced their relative cooling power (RCP). The RCP of all composite samples increased with respect to the pristine LCMO, except for LCMO–5%NiO. The highest RCP value of 267 JKg−1 was observed in LCMO–5%CuO samples, which was 23.4% higher than the 213 JKg−1 observed for the pure LCMO at a magnetic field of 5T. The enhanced RCP of these composites makes them attractive for potential refrigeration applications. Full article
(This article belongs to the Special Issue Perovskite Materials: Preparation, Crystal Structure and Magnetic Properties)
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