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Quasi Two-Dimensional Interfaces

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

Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 2516

Special Issue Editor


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Guest Editor
Nonlinear Nanostructures laboratory, Electrical and Computer Engineering, New Jersey Institute of Technology, Newark, NJ, USA
Interests: nano-technology; artificial dielectrics; optical bench; laser-induced etching of optical filters; holographic optical interconnects

Special Issue Information

Dear Colleagues,

Recent attention has been drawn to two- and quasi- two dimensional (2-D) materials. While graphene has drawn most of the initial attention, other 2-D materials exist, either in pure or complex forms. These structures are very sensitive to interactions with other material components, situated at their surface (e.g., quantum dots on top of graphene). This brings us to the role of an interface, its characteristics, and its related applications (e.g., DNA sensor by use of fluorescence quenching graphene). An interface may be defined by the wavelength with which we interrogate it. For example, plasmonic interfaces may have an interaction length, which is larger than their physical dimensions.

The focus of this Special Issue is on the role of an interface, as defined by the interrogating wavelength. Contributions are sought throughout all wavelength scales. 

Topics may include (but are not limited to):

  • Metastructures and patterned plasmonic interfaces;
  • Interfaces of nano-materials;
  • Linear and nonlinear interrogation techniques (absorption, Raman, fluorescence, photo-luminescence, time-resolved spectroscopy, etc.);
  • Imaging techniques that reveal the role of the interface.

Prof. Haim Grebel
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

  • interfaces
  • 2-D materials
  • meta-structured surfaces
  • meta-materials
  • characterization of interfaces
  • imaging of interfaces

Published Papers (1 paper)

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Research

12 pages, 2815 KiB  
Article
The Effect of Periodic Spatial Perturbations on the Emission Rates of Quantum Dots near Graphene Platforms
by Xin Miao, David J. Gosztola, Xuedan Ma, David Czaplewski, Liliana Stan and Haim Grebel
Materials 2020, 13(16), 3504; https://doi.org/10.3390/ma13163504 - 08 Aug 2020
Viewed by 1924
Abstract
The quenching of fluorescence (FL) at the vicinity of conductive surfaces and, in particular, near a 2-D graphene layer has become an important biochemical sensing tool. The quenching is attributed to fast non-radiative energy transfer between a chromophore (here, a Quantum Dot, QD) [...] Read more.
The quenching of fluorescence (FL) at the vicinity of conductive surfaces and, in particular, near a 2-D graphene layer has become an important biochemical sensing tool. The quenching is attributed to fast non-radiative energy transfer between a chromophore (here, a Quantum Dot, QD) and the lossy graphene layer. Increased emission rate is also observed when the QD is coupled to a resonator. Here, we combine the two effects in order to control the emission lifetime of the QD. In our case, the resonator was defined by an array of nano-holes in the oxide substrate underneath a graphene surface guide. At resonance, the surface mode of the emitted radiation is concentrated at the nano-holes. Thus, the radiation of QD at or near the holes is spatially correlated through the hole-array’s symmetry. We demonstrated an emission rate change by more than 50% as the sample was azimuthally rotated with respect to the polarization of the excitation laser. In addition to an electrical control, such control over the emission lifetime could be used to control Resonance Energy Transfer (RET) between two chromophores. Full article
(This article belongs to the Special Issue Quasi Two-Dimensional Interfaces)
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