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Solid-Solution Micro/Nanomaterials: Modeling Structure, Optical, Magnetic and Dielectric Properties

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

Deadline for manuscript submissions: 10 February 2027 | Viewed by 926

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Department of Inorganic Chemistry, West Pomeranian University of Technology in Szczecin, Szczecin, Poland
Interests: inorganic chemistry; RE-doped materials for optoelectronics; scheelite-, wolframite- and perovskite-type materials; molybdate and tungstate divalent metals
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Special Issue Information

Dear Colleagues,

Solid solutions are a specific type of crystalline materials in which chemical components form a homogeneous solid phase.The formation of solid solutions involves the partial substitution of atoms or ions of one component of the solution (the host) by atoms or ions of another component (the dopant) within the same crystal lattice, without changing its structure.

Depending on the manner in which dopants are incorporated, substitutional and interstitial solid solutions are distinguished. The formation of solid solutions is often accompanied by the creation of cationic or anionic vacancies.

Due to the ability to control chemical composition, solid solutions enable purposeful modification of material properties such as electrical and thermal conductivity, as well as magnetic, optical, and dielectric properties.

They are widely used in electronics, optoelectronics, and modern functional materials, including micro- and nanomaterials, where even small changes in composition can lead to significant changes in physical properties.

Dr. Elżbieta Tomaszewicz
Guest Editor

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Keywords

  • solid-solution model
  • host
  • dopant
  • thermal expansion of the crystal lattice
  • vacancy solid solutions
  • property modeling
  • optical properties
  • magnetic properties
  • dielectric properties

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Published Papers (1 paper)

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Research

22 pages, 4041 KB  
Article
A Novel Strategy for High Quantum Efficiency Composite Oxide Far-Red Phosphors: Ca14Mg5.94Li0.03In0.03Ga9.95O35:0.05Mn4+
by Juan Li, Huiying Ye, Fachangsheng Zhong, Peng Wu, Menghao Chang, Linkun Han, Jingwu Zheng, Liang Qiao, Jing Yu, Yao Ying, Wei Cai and Shenglei Che
Materials 2026, 19(7), 1367; https://doi.org/10.3390/ma19071367 - 30 Mar 2026
Viewed by 666
Abstract
Far-red phosphors featuring high quantum efficiency and emission bands that strongly overlap with the absorption spectra of plant pigments are crucial for advancing plant cultivation lighting technology. Restricted by the large Stokes shift, far-red phosphors typically exhibit low energy efficiency. Moreover, many far-red [...] Read more.
Far-red phosphors featuring high quantum efficiency and emission bands that strongly overlap with the absorption spectra of plant pigments are crucial for advancing plant cultivation lighting technology. Restricted by the large Stokes shift, far-red phosphors typically exhibit low energy efficiency. Moreover, many far-red phosphors suffer from low quantum efficiency, which has emerged as a critical issue in the research of these materials. To address the issue, conventional strategies—including crystal field engineering, defect engineering, and sensitizer doping—have been widely adopted to enhance their emission intensity. In this work, we propose a novel and effective strategy to improve the emission performance of far-red phosphors: low-melting-point magnesium chloride has been introduced as a flux to regulate the reaction pathway of the composite oxide phosphor Ca14Mg5.94Li0.03In0.03Ga9.95O35:0.05Mn4+ (CMLIGO:0.05Mn4+). The cubic intermediate product with a structure analogous to the target product has been designed to form a compact lattice structure and reduce crystal defects, thereby enhancing the luminescence intensity and quantum efficiency of the phosphor. The Ca14Mg5.94Li0.03In0.03Ga9.95O35:0.05Mn4+@3 wt% MgCl2 (CMLIGO:0.05Mn4+@3 wt% MgCl2) shows a broad excitation band (250–600 nm) and far-red emission centered at 720 nm (650–800 nm). Under 365 nm excitation, the CMLIGO:0.05Mn4+@3 wt% MgCl2 exhibits an internal quantum efficiency of 91.4%. Benefiting from its high internal quantum efficiency and the emission band that matches well with the absorption spectrum of phytochrome in the far-red absorbing form (phytochrome Pfr), CMLIGO:0.05Mn4+@3 wt% MgCl2 demonstrates promising potential for applications in plant cultivation lighting. This work offers a new direction for synthesizing and modification of composite oxide phosphors. Full article
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