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Formation, Characterization and Optical Properties of Crystals

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

Deadline for manuscript submissions: closed (20 November 2023) | Viewed by 1581

Special Issue Editors


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Guest Editor
State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
Interests: nonlinear optical crystals; single crystals; nanocrystals; X-ray photoelectron spectroscopy; structure; properties

E-Mail Website
Guest Editor
State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
Interests: functional crystals; nonlinear optical crystals; oxide fiber materials; fabrication; properties

Special Issue Information

Dear Colleagues,

As crucial functional materials, crystals come in many forms, such as laser crystals, nonlinear optical (NLO) crystals, piezoelectric crystals and scintillation crystals. In the last few decades, numerous crystals, for example Nd3+: Y3Al5O12 (YAG), KTiOPO4 (KTP), KH2PO4 (KDP), LiNbO3 (LN), have been developed and applied as laser and NLO materials. However, the development of optical technology necessitates new crystal materials with excellent optical properties. Moreover, nanometer-sized crystalline materials may have potential optical properties and represent an opportunity for new applications. With this in mind, this Special Issue welcomes the submissions of papers focused on bulk crystals and nanocrystals.

We are inviting researchers to submit original work to this Special Issue, “Formation, Characterization and Optical Properties of Crystals”, which intends to highlight the state of the art for all kinds of crystals and relevant aspects of these materials. Bulk functional crystals, nanocrystals, and their preparation, characterization and properties will be covered.

Topics of interest include, but are not limited to, the following aspects:

  • Growth and characterization of crystals;
  • Formation and related mechanism of crystals;
  • Properties of crystal materials;
  • Preparation of nanocrystalline materials;
  • X-ray photoelectron spectroscopy studies;
  • Microstructure and morphology;
  • Luminescence;
  • Absorption properties;
  • Relationship between structure and properties.

Prof. Dr. Xiulan Duan
Prof. Dr. Xinqiang Wang
Guest Editors

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. Materials is an international peer-reviewed open access semimonthly 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 2600 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

  • crystalline materials
  • laser crystals
  • nonlinear optical crystals
  • nanocrystals
  • nanoparticles
  • characterization
  • structure
  • optical properties
  • X-ray photoelectron spectroscopy
  • luminescence

Published Papers (1 paper)

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Research

11 pages, 2405 KiB  
Article
Growth, Structure and Optical Characterization of Rb3Ti3P5O20 Single Crystal
by Jianfu Zhao, Pengfei Zhu, Zhenyan Wang, Li Ai, Xiulan Duan and Fapeng Yu
Materials 2022, 15(15), 5346; https://doi.org/10.3390/ma15155346 - 3 Aug 2022
Viewed by 1179
Abstract
Phosphate crystals attract much attention on account of their rich crystal structures and excellent physical and chemical properties. Herein, Rb3Ti3P5O20 single crystals were grown by the high temperature solution method using Rb2CO3 and [...] Read more.
Phosphate crystals attract much attention on account of their rich crystal structures and excellent physical and chemical properties. Herein, Rb3Ti3P5O20 single crystals were grown by the high temperature solution method using Rb2CO3 and NH4H2PO4 as the fluxes. This crystal, with non-centrosymmetric Pca21 space group, presents a three-dimensional framework structure composed of [TiO6] octahedron, [PO4] tetrahedra, and [P2O7] dimers. The electronic structure was measured via X-ray photoelectron spectroscopy. The measurements found that Rb3Ti3P5O20 has stronger Ti–O ionic bonding properties and weaker P–O covalent bonding properties compared to RbTiOPO4. Optical measurements indicated that Rb3Ti3P5O20 has a 3.54 eV band gap and a wide transmission range (0.33–4.5 μm). Theoretical calculations showed that Rb3Ti3P5O20 crystals have a moderate birefringence of 0.079 at 1064 nm. In addition, the relationship of the structure–property was studied using first-principles method. The results demonstrated that TiO6 octahedron played a significant role for the optical properties. Full article
(This article belongs to the Special Issue Formation, Characterization and Optical Properties of Crystals)
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