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Advances in Epitaxial (Nano)-Materials for Optoelectronics

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

Deadline for manuscript submissions: closed (20 April 2022) | Viewed by 1538

Special Issue Editor


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Guest Editor
Paul-Drude-Institute, Berlin, Germany
Interests: nanoanalytics; electron microscopy; microstructure; nanofabrication; III-V Semiconductors; epitaxy

Special Issue Information

Dear Colleagues,

The development of innovative materials with novel optoelectronic properties and tailored functionalities is of enormous importance for the research of new applications and, thus, for further progress in the semiconductor industry. Here, epitaxial growth methods are often used for successful material development because they offer growth control on an atomic level, and the possibility to form non-equilibrium material configurations and combinations with the highest structural perfection. In recent years, there have been intense efforts and progress in the field of planar heteroepitaxy of (highly) mismatched materials or nano-epitaxy on patterned substrates.

The Special Issue titled “Advances in epitaxial (nano)-materials for optoelectronics” addresses current progress and challenges in materials research for optoelectronic application. The scope of this issue includes but is not limited to the following topics:

  • Extreme heteroepitaxy (incl. heteroepitaxy of very dissimilar materials): theory and experiment
  • III-V on Si integration and technology
  • Van der Waals epitaxy of 2D materials and heterostructures
  • Strain relaxation and defect formation mechanisms
  • Interface engineering, structural configuration, and chemistry
  • Novel substrate materials and smart concepts for epitaxy
  • Advanced structural characterization methods (large scale analysis, nanoanalytics, in-situ methods, etc.)

Dr. Achim Trampert
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

  • hetero-epitaxy
  • semiconductors
  • III-V on Si
  • 2D materials
  • microstructure
  • interface
  • defects
  • optoelectronics

Published Papers (1 paper)

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Research

10 pages, 1952 KiB  
Article
Molecular-Scale Plasmon Trapping via a Graphene-Hybridized Tip-Substrate System
by Guangqing Du, Yu Lu, Dayantha Lankanath, Xun Hou and Feng Chen
Materials 2022, 15(13), 4627; https://0-doi-org.brum.beds.ac.uk/10.3390/ma15134627 - 01 Jul 2022
Viewed by 1181
Abstract
We theoretically investigated the plasmon trapping stability of a molecular-scale Au sphere via designing Au nanotip antenna hybridized with a graphene sheet embedded Silica substrate. A hybrid plasmonic trapping model is self-consistently built, which considers the surface plasmon excitation in the graphene-hybridized tip-substrate [...] Read more.
We theoretically investigated the plasmon trapping stability of a molecular-scale Au sphere via designing Au nanotip antenna hybridized with a graphene sheet embedded Silica substrate. A hybrid plasmonic trapping model is self-consistently built, which considers the surface plasmon excitation in the graphene-hybridized tip-substrate system for supporting the scattering and gradient optical forces on the optical diffraction-limit broken nanoscale. It is revealed that the plasmon trapping properties, including plasmon optical force and potential well, can be unprecedentedly adjusted by applying a graphene sheet at proper Fermi energy with respect to the designed tip-substrate geometry. This shows that the plasmon potential well of 218 kBT at room temperature can be determinately achieved for trapping of a 10 nm Au sphere by optimizing the surface medium film layer of the designed graphene-hybridized Silica substrate. This is explained as the crucial role of graphene hybridization participating in plasmon enhancement for generating the highly localized electric field, in return augmenting the trapping force acting on the trapped sphere with a deepened potential well. This study can be helpful for designing the plasmon trapping of very small particles with new routes for molecular-scale applications for molecular-imaging, nano-sensing, and high-sensitive single-molecule spectroscopy, etc. Full article
(This article belongs to the Special Issue Advances in Epitaxial (Nano)-Materials for Optoelectronics)
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