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Applied Sciences
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Physics and Applications of Nanostructures in Electronics and Optoelectronics
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Physics and Applications of Nanostructures in Electronics and Optoelectronics

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Nanotechnology and Applied Nanosciences".

Deadline for manuscript submissions: closed (10 February 2022) | Viewed by 2585

Special Issue Editor

Prof. Dr. Daniela Dragoman

E-Mail Website
Guest Editor
Faculty of Physics, University of Bucharest, 077125 Bucuresti-Magurele, Romania
Interests: charge and spin transport in nanostructures; physics of nanodevices; architectures for computing, including quantum computing; plasmonics; metamaterials and metasurfaces; characterization and propagation of structured light beams, including optical vortices
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nanoscience and nanotechnologies have grown into a booming area of research with many applications in various areas of sciences, such as nanoelectronics, biology, quantum technologies, and quantum computing. The physics of nanostructures represents a challenge for atomically thin materials and needs precise modeling to predict the performances of devices based on them. This Special Issue will be focused on the following topics:

  • the physics of atomically thin materials
  • electronic and photonic devices based on atomically thin materials
  • nanoscale sensors for mechanical, electrical, and electromagnetic applications
  • non-standard computing based on nanodevices, such as quantum computing and neuromorphic computing
  • energy harvesting based on nanomaterials

Prof. Dr. Daniela Dragoman
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. Applied Sciences 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 2400 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

  • atomically thin materials
  • electronic and photonic nanodevices
  • quantum computing
  • neoromorphic computing
  • sensors
  • energy harvesting

Published Papers (1 paper)

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Research

12 pages, 1828 KiB  
Article
A Multi-Objective Optimization of 2D Materials Modified Surface Plasmon Resonance (SPR) Based Sensors: An NSGA II Approach
by Pericle Varasteanu and Mihaela Kusko
Appl. Sci. 2021, 11(10), 4353; https://0-doi-org.brum.beds.ac.uk/10.3390/app11104353 - 11 May 2021
Cited by 6 | Viewed by 1962
Abstract
Modifying the structure of surface plasmon resonance based sensors by adding 2D materials has been proven to considerably enhance the sensor’s sensitivity in comparison to a traditional three layer configuration. Moreover, a thin semiconductor film placed on top of the metallic layer and [...] Read more.
Modifying the structure of surface plasmon resonance based sensors by adding 2D materials has been proven to considerably enhance the sensor’s sensitivity in comparison to a traditional three layer configuration. Moreover, a thin semiconductor film placed on top of the metallic layer and stacked together with 2D materials enhances even more sensitivity, but at the cost of worsening the plasmonic couplic strength at resonance (minimum level of reflectivity) and broadening the response. With each supplementary layer added, the complexity of optimizing the performance increases due to the extended parameter space of the sensor. This study focused on overcoming these difficulties in the design process of sensors by employing a multi-objective genetic algorithm (NSGA II) alongside a transfer matrix method (TMM) and, at the same time, optimizing the sensitivity to full width at half maximum (FWHM), and the reflectivity level at a resonance for a four layer sensor structure. Firstly, the thin semiconductor’s refractive index was optimized to obtain the maximum achievable sensitivity with a narrow FWHM and a reflectivity level at a resonance of almost zero. Secondly, it was shown that refractive indices of barium titanate (BaTiO3) and silicon (Si) are the closest to the optimal indices for the silver—graphene/WS2 and MoS2 modified structures, respectively. Sensitivities up to 302 deg/RIU were achieved by Ag–BaTIO3–graphene/WS2 configurations with an FWHM smaller than 8 deg and a reflectivity level less than 0.5% at resonance. Full article
(This article belongs to the Special Issue Physics and Applications of Nanostructures in Electronics and Optoelectronics)
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