Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.2
3.4
Journals
Materials
Special Issues
Optical Properties and Applications of Nanocrystals
materials-logo
Submit to Materials Review for Materials Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

Optical Properties and Applications of Nanocrystals

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 April 2023) | Viewed by 3829

Special Issue Editor

Dr. Valerio Pinchetti

E-Mail Website
Guest Editor
Dipartimento di Scienza dei Materiali, Università degli Studi di Milano-Bicocca, 20125 Milano, Italy
Interests: colloidal nanocrystals; optical spectroscopy; exciton dynamics; semiconductor quantum dots; magneto-optics

Special Issue Information

Dear Colleagues,

Nanocrystals have attracted tremendous interest in recent decades for their superior tunable optical properties. Since the first reports on nanocrystalline II–VI semiconductors with tunable bandgaps via size-control of the quantum confinement effect, a large variety of solutions have been adopted to modify the photophysics of this class of nanomaterials to best fit the requirements of different technological applications. Specifically, multi-component nano-heterostructures, 1D- and 2D-geometries and doping have been successful solutions used to produce nanomaterials with tailored optical properties spanning from the near-UV to the near- and mid-infrared spectral regions. More recently, perovskite nanocrystals paved the way for new technological perspectives thanks to their easy chemical processability and their superior optical quality.

The sheer number of parameters available to finely customize the optical properties of nanomaterials made them excellent candidates for many applicative areas, spanning from spintronics to photovoltaics; from nanomedicine to light-emitting diodes. The rapid growth in this field resulted in a global improvement that suitably reflects the technological demand for more efficient optical materials with application-driven properties.

In this Special Issue of Materials entitled “Optical Properties and Applications of Nanocrystals”, I therefore aim to publish up-to-date results on last-generation nanocrystals reporting unprecedented results regarding photophysics and the application of this innovative class of materials.

I am pleased to invite you to submit either full papers, communications or reviews on this topic to this Special Issue.

Dr. Valerio Pinchetti
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. 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

  • nanocrystals
  • optical properties
  • photoluminescence
  • photophysics
  • quantum dots
  • nanophotonics

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

10 pages, 2711 KiB  
Article
ZnTe Crystal Multimode Cryogenic Thermometry Using Raman and Luminescence Spectroscopy
by Evgenii V. Borisov, Alexey A. Kalinichev and Ilya E. Kolesnikov
Materials 2023, 16(3), 1311; https://0-doi-org.brum.beds.ac.uk/10.3390/ma16031311 - 03 Feb 2023
Cited by 7 | Viewed by 1432
Abstract
In this study, ZnTe crystal was applied to provide precise thermal sensing for cryogenic temperatures. Multiple techniques, namely Raman and photoluminescence spectroscopies, were used to broaden the operating temperature range and improve the reliability of the proposed thermometers. Raman-based temperature sensing could be [...] Read more.
In this study, ZnTe crystal was applied to provide precise thermal sensing for cryogenic temperatures. Multiple techniques, namely Raman and photoluminescence spectroscopies, were used to broaden the operating temperature range and improve the reliability of the proposed thermometers. Raman-based temperature sensing could be applied in the range of 20–100 K, while luminescence-based thermometry could be utilized in a narrower range of 20–70 K. However, the latter strategy provides better relative thermal sensitivity and temperature resolution. The best thermal performances based on a single temperature-dependent parameter attain Sr = 3.82% K−1 and ΔT = 0.12 K at T = 50 K. The synergy between multiple linear regression and multiparametric thermal sensing demonstrated for Raman-based thermometry results in a ten-fold improvement of Sr and a two-fold enhancement of ΔT. All studies performed testify that the ZnTe crystal is a promising multimode contactless optical sensor for cryogenic thermometry. Full article
(This article belongs to the Special Issue Optical Properties and Applications of Nanocrystals)
►▼ Show Figures

Figure 1

10 pages, 3682 KiB  
Communication
Photoluminescence and Energy Transfer in Double- and Triple-Lanthanide-Doped YVO4 Nanoparticles
by Vassiliy A. Medvedev, Ilya E. Kolesnikov, Pavel K. Olshin, Mikhail D. Mikhailov, Alina A. Manshina and Daria V. Mamonova
Materials 2022, 15(7), 2637; https://0-doi-org.brum.beds.ac.uk/10.3390/ma15072637 - 03 Apr 2022
Cited by 3 | Viewed by 1824
Abstract
Optical materials doped with several lanthanides are unique in their properties and are widely used in various fields of science and technology. The study of these systems provides solutions for noncontact thermometry, bioimaging, sensing technology, and others. In this paper, we report on [...] Read more.
Optical materials doped with several lanthanides are unique in their properties and are widely used in various fields of science and technology. The study of these systems provides solutions for noncontact thermometry, bioimaging, sensing technology, and others. In this paper, we report on the demonstration of YVO4 nanoparticles doped with one, two, and three different rare earth ions (Tm3+, Er3+, and Nd3+). We discuss the morphology, structural properties, and luminescence behavior of particles. Luminescence decay kinetics reveal the energy transfer efficiency (up to 78%) for different ions under the selective excitation of individual ions. Thus, we found that the energy transition from Tm3+ is more favorable than from Er3+ while we did not observe any significant energy rearrangement in the samples under the excitation of Nd3+. The observed strong variation of REI lifetimes makes the suggested nanoparticles promising for luminescent labeling, anticounterfeiting, development of data storage systems, etc. Full article
(This article belongs to the Special Issue Optical Properties and Applications of Nanocrystals)
►▼ Show Figures

Graphical abstract

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop