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Special Issue "Optical Properties of Rare-Earth Doped Nanostructured Materials"

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Optics and Photonics".

Deadline for manuscript submissions: closed (30 September 2021) | Viewed by 1328

Special Issue Editor

Dr. Mihail Secu
E-Mail Website
Guest Editor
National Institute for Materials Physics, Magurele, Romania
Interests: nanocrystals; nanofluorides; sol–gel; glasses; glass ceramic; polymeric composites; rare-earth elements; up-conversion; photoluminescence; thermoluminescence; radiation defects

Special Issue Information

Dear Colleagues,

Rare-earth doped nanostructured materials have attracted great interest because of their luminescence properties (wide spectral range, intense and sharp bands, and long lifetime), with a high potential for applications in various fields, such as optoelectronic devices, radiation detection, white light generation displays, photovoltaics, telecommunications, solid state lasers, or nano-labels, in biological imaging and nanomedicine. Great efforts have been devoted to searching for new and controllable synthesis methods, by using various chemical methods, along with a better understanding of the nanosize and surface-related effects.

A promising development of the rare-earth doped nanostructured materials is represented by luminescent hybrid composite materials. These are based on stabilized rare-earth doped nanoparticles homogeneously dispersed in a glassy or polymeric matrix—nano-glass ceramics or inorganic-polymer composites, respectively. Such nanocomposites would allow for the exploitation of their favorable optical functionalities and optical transparency (because of a lack of scattering). By deposition on selected substrates, transparent thin films can be obtained, suitable for use in optical devices.

Dr. Mihail Secu
Guest Editor

Manuscript Submission Information

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Keywords

  • nanocrystals
  • fluorides
  • hybrid composite
  • glasses
  • glass ceramics
  • rare-earth elements
  • up-conversion
  • photoluminescence

Published Papers (1 paper)

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Review

Review
Optical Properties of Transparent Rare-Earth Doped Sol-Gel Derived Nano-Glass Ceramics
Materials 2021, 14(22), 6871; https://doi.org/10.3390/ma14226871 - 14 Nov 2021
Cited by 4 | Viewed by 849
Abstract
Rare-earth doped oxyfluoride glass ceramics represent a new generation of tailorable optical materials with high potential for optical-related applications such as optical amplifiers, optical waveguides, and white LEDs. Their key features are related to the high transparency and remarkable luminescence properties, while keeping [...] Read more.
Rare-earth doped oxyfluoride glass ceramics represent a new generation of tailorable optical materials with high potential for optical-related applications such as optical amplifiers, optical waveguides, and white LEDs. Their key features are related to the high transparency and remarkable luminescence properties, while keeping the thermal and chemical advantages of oxide glasses. Sol-gel chemistry offers a flexible synthesis approach with several advantages, such as lower processing temperature, the ability to control the purity and homogeneity of the final materials on a molecular level, and the large compositional flexibility. The review will be focused on optical properties of sol-gel derived nano-glass ceramics related to the RE-doped luminescent nanocrystals (fluorides, chlorides, oxychlorides, etc.) such as photoluminescence, up-conversion luminescence, thermoluminescence and how these properties are influenced by their specific processing, mostly focusing on the findings from our group and similar ones in the literature, along with a discussion of perspectives, potential challenges, and future development directions. Full article
(This article belongs to the Special Issue Optical Properties of Rare-Earth Doped Nanostructured Materials)
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