materials-logo

Journal Browser

Journal Browser

Materials for Optoelectronic Applications

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

Deadline for manuscript submissions: closed (31 March 2021) | Viewed by 5869

Special Issue Editor


E-Mail Website
Guest Editor
Insulation Materials Research Center, Korea Electrotechnology Research Institute (KERI), Changwon 51543, Korea
Interests: optoelectronics; semiconductors; nanostructures; self-assembly; polymer science

Special Issue Information

Dear Colleagues,

The development of cutting-edge optoelectronic devices, defined as electrical-to-optical or optical-to-electrical transducer mediums, is rapidly changing science and industry. Many efforts to overcome limitations on the performance of such optoelectronic devices still begin with the development of advanced materials, as well as the finding of emerging materials.

This Special Issue, titled “Materials for Optoelectronic Applications”, addresses current progress and challenges with respect to materials in view of the development of the latest optoelectronic devices. For this Special Issue, 1) studies on the synthesis of new materials, ranging from small molecules to macromolecules to inorganic materials and their relevant electrical and optical characterizations, and 2) studies on novel structures with a variety of dimensionalities and their applications in relevant devices, such as photovoltaics, light-emitting diodes, and photonic crystal devices, are preferred, but the scope of this Special Issue is not limited to them.

I would like to invite you to submit full papers, reviews, or communications related to emerging materials for optoelectronics and their device applications to this Special Issue.

Dr. Seunggun Yu
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

  • emerging materials for optoelectronics
  • semiconductors
  • photovoltaics
  • light-emitting diodes
  • photonic crystals

Published Papers (2 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

10 pages, 3330 KiB  
Article
Synthesis of Uniformly Sized Bi0.5Sb1.5Te3.0 Nanoparticles via Mechanochemical Process and Wet-Milling for Reduced Thermal Conductivity
by Bo-In Park, Miri Shin, Jaeho Park, Jae-Seung Lee, Seung Yong Lee and Seunggun Yu
Materials 2021, 14(3), 536; https://doi.org/10.3390/ma14030536 - 22 Jan 2021
Viewed by 2232
Abstract
In this study, Bi0.5Sb1.5Te3.0 (BST) nanoparticles (NPs) with high crystallinities were synthesized via a mechanochemical process (MCP). X-ray diffraction (XRD), and Raman and X-ray photoelectron spectroscopy (XPS) spectra of the BST NPs showed that the Bi, Sb, and [...] Read more.
In this study, Bi0.5Sb1.5Te3.0 (BST) nanoparticles (NPs) with high crystallinities were synthesized via a mechanochemical process (MCP). X-ray diffraction (XRD), and Raman and X-ray photoelectron spectroscopy (XPS) spectra of the BST NPs showed that the Bi, Sb, and Te powders successfully formed BiSbTe phase and transmission electron microscopy (TEM) images, verifying the high crystallinity and smaller size, albeit agglomerated. The as-synthesized BST NPs with agglomerated clusters were ground into smaller sizes of approximately 41.8 nm with uniform distribution through a simple wet-milling process during 7 days. The thermal conduction behaviors of bulk alloys fabricated by spark plasma sintering (SPS) of the BST NPs were studied by comparing those of samples fabricated from as-synthesized BST NPs and a BST ingot. The thermal conductivities (κ) of the BST nanocomposites were significantly reduced by introducing BST NPs with smaller grain sizes and finer distributions in the temperature range from 300 to 500 K. The BST nanocomposites fabricated from wet-milled BST NPs offered ultralow κ values of 0.84 W m−1 K−1 at approximately 398 K. Full article
(This article belongs to the Special Issue Materials for Optoelectronic Applications)
Show Figures

Figure 1

11 pages, 2782 KiB  
Article
Effect of Time-Dependent Characteristics of ZnO Nanoparticles Electron Transport Layer Improved by Intense-Pulsed Light Post-Treatment on Hole-Electron Injection Balance of Quantum-Dot Light-Emitting Diodes
by Young Joon Han, Kyung-Tae Kang, Byeong-Kwon Ju and Kwan Hyun Cho
Materials 2020, 13(21), 5041; https://doi.org/10.3390/ma13215041 - 9 Nov 2020
Cited by 5 | Viewed by 2858
Abstract
We investigated the effect of intense-pulsed light (IPL) post-treatment on the time-dependent characteristics of ZnO nanoparticles (NPs) used as an electron transport layer (ETL) of quantum-dot light-emitting diodes (QLEDs). The time-dependent characteristics of the charge injection balance in QLEDs was observed by fabrication [...] Read more.
We investigated the effect of intense-pulsed light (IPL) post-treatment on the time-dependent characteristics of ZnO nanoparticles (NPs) used as an electron transport layer (ETL) of quantum-dot light-emitting diodes (QLEDs). The time-dependent characteristics of the charge injection balance in QLEDs was observed by fabrication and analysis of single carrier devices (SCDs), and it was confirmed that the time-dependent characteristics of the ZnO NPs affect the device characteristics of QLEDs. Stabilization of the ZnO NPs film properties for improvement of the charge injection balance in QLEDs was achieved by controlling the current density characteristics via filling of the oxygen vacancies by IPL post-treatment. Full article
(This article belongs to the Special Issue Materials for Optoelectronic Applications)
Show Figures

Graphical abstract

Back to TopTop