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Optical Properties of Transparent Ceramics

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

Deadline for manuscript submissions: closed (10 June 2023) | Viewed by 1799

Special Issue Editor


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Guest Editor
DKU Faculty, Duke Kunshan University, Kunshan, China
Interests: semiconductor optics; laser spectroscopy; solid-state materials; exciton dynamics; nanostructures

Special Issue Information

Dear Colleagues,

As a newly emerged material, transparent ceramics have found many applications in areas such as envelopes in high power lamps, scintillators, electro-optic devices, and optical components, such as windows and lens. Furthermore, they have been used as gain mediums in solid-state lasers replacing single crystals with lower cost and higher efficiency. The detailed investigations of the physics properties of structured ceramic materials, especially their optical properties, play an important role in realizing and optimizing their existing and potential applications. Techniques such as Raman scattering, steady-state and time-resolved photoluminescence (PL) spectroscopy, absorption/excitation spectroscopy, etc., are noninvasive and helpful means to investigate lattice vibrations, energy levels, nonlinear optical processes, carrier recombination processes and dynamics, and related physics procedures inside transparent ceramics, especially for rare-earth (RE) doped ones.

The aim of this Special Issue is to highlight the latest developments in the optical characterization of transparent ceramics, especially to advance the fundamental understanding of the relationship between doping type and concentration, growth conditions, and optical properties. Topics of interest also include the latest research on the advanced characterization of material properties and their applications in the optical area.

Dr. Changcheng Zheng
Guest Editor

Manuscript Submission Information

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Keywords

  • transparent ceramics
  • optical properties
  • nonlinear optical process
  • optical applications

Published Papers (1 paper)

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Research

14 pages, 4174 KiB  
Article
Ag Nanocluster-Enhanced Scintillation Properties of Borophosphate Glasses Doped with CsPbBr3 Quantum Dots
by Ying Du, Lu Deng and Danping Chen
Materials 2022, 15(15), 5187; https://doi.org/10.3390/ma15155187 - 26 Jul 2022
Cited by 4 | Viewed by 1411
Abstract
A novel and effective method to improve scintillation properties of glass-ceramics, such as intensity enhancement and decay-time shortening, is reported in this work. Compared with crystal scintillators, glass scintillators always have the problems of low efficiency and long decay; how to solve them [...] Read more.
A novel and effective method to improve scintillation properties of glass-ceramics, such as intensity enhancement and decay-time shortening, is reported in this work. Compared with crystal scintillators, glass scintillators always have the problems of low efficiency and long decay; how to solve them has always been a scientific puzzle in the field of scintillation glass-ceramics. The plasma enhancement effect can be predicted to solve the above problems. Ag+ ions were diffused into glasses by ion exchange, and then Ag nanoparticles and CsPbBr3 quantum dots were formed by heat treatment. The structure of the CsPbBr3 perovskite consists of a series of shared corner PbBr6 octahedra with Cs ions occupying the cuboctahedral cavities. By using Ag and the plasma resonance effect, the photoluminescence intensity of CsPbBr3 quantum dot glasses was enhanced by 3 times, its radioluminescence intensity increased by 6.25 times, and its decay time was reduced by a factor of more than one. Moreover, the mechanism of photoluminescence and radioluminescence enhanced by Ag and plasma was discussed based on the experimental results and finite-difference time-domain method. We concluded that the increase in radioluminescence intensity was related to plasma enhancements and the energy exchange between Ag nanoclusters and CsPbBr3 quantum dots. Doping Ag is a valid means to improve the scintillation luminescence of CsPbBr3 quantum dot glasses, which can be applied in the field of scintillation. Full article
(This article belongs to the Special Issue Optical Properties of Transparent Ceramics)
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