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Photonics
Special Issues
New Insights in Low-Dimensional Optoelectronic Materials and Devices
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New Insights in Low-Dimensional Optoelectronic Materials and Devices

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Optoelectronics and Optical Materials".

Deadline for manuscript submissions: 30 November 2024 | Viewed by 1858

Special Issue Editor

Dr. Xiao Luo

E-Mail Website
Guest Editor
School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu 611731, China
Interests: optoelectronic devices; photodetectors; luminescent solar concentrators; ultrafast spectroscopy; quantum dots; semiconductor nanocrystals; perovskite
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Since the first demonstration of a semiconductor laser in the early 1960s, optoelectronic devices have been produced in their millions, pervading our everyday lives. At present, the fundamental research and applications of low-dimensional optoelectronic materials in sensing, display, lighting, and photon harvesting devices are rising, mainly because of their distinctive photophysical properties and feasible tunability induced by size, shape, and composition, including heterostructures and the addition of functional groups. Understanding the properties of these materials has been of vital importance in the development of optoelectronic devices. This Special Issue aims to showcase research articles, short reports, and review papers that give new insights into the fundamental properties of emerging low-dimensional materials and their potential applications in optoelectronic devices. This research topic spans a wide variety of subjects in materials (1D quantum dots, 2D materials, etc.), devices (photodetectors, light-emitting diodes, lasers, solar cells, etc.), and integrated systems. We are inviting both research articles and review papers that are related to this fascinating topic. Further information can be found on the Special Issue website. The low-dimensional optoelectronic materials in this Special Issue may include, but are not limited to, quantum dots, semiconductor nanocrystals, 2D materials, perovskite, and related heterostructures. Device applications include photoconductors, photodiodes, phototransistors, optoelectronics, flexible electronics, optoelectronic memristors, photo-synaptic devices, and neuromorphic computing, among others.

Dr. Xiao Luo
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. Photonics is an international peer-reviewed open access monthly 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

  • quantum dots
  • semiconductor nanocrystals
  • perovskite
  • 2D materials
  • transition metal dichalcogenides
  • van der Waals heterostructures
  • optoelectronic devices
  • ultrafast spectroscopy

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Published Papers (2 papers)

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Research

11 pages, 2588 KiB  
Article
Plasmon Response in Individual Conical Silicon Nanowires with Different Lengths
by Rizwan Rafique, Antonino La Magna, Antonio Massimiliano Mio, Salvatore Patanè, Jost Adam and Rosaria Anna Puglisi
Photonics 2024, 11(11), 999; https://doi.org/10.3390/photonics11110999 - 23 Oct 2024
Viewed by 646
Abstract
Silicon nanowires (SiNWs) are extensively studied in the scientific community due to their remarkable electrical and optical properties. In our previous studies, we have demonstrated that cylindrical−shaped SiNWs sustain longitudinal plasmon resonances (LPRs) and transverse plasmon resonances (TPRs). In this work, we will [...] Read more.
Silicon nanowires (SiNWs) are extensively studied in the scientific community due to their remarkable electrical and optical properties. In our previous studies, we have demonstrated that cylindrical−shaped SiNWs sustain longitudinal plasmon resonances (LPRs) and transverse plasmon resonances (TPRs). In this work, we will present the results of our investigation on conical SiNWs with different lengths and demonstrate that the NW size plays a role on the spectral response. We selected two groups of SiNWs with approximately 300 nm and 750 nm in length with different lengths and diameters. We investigated the optical properties of the SiNWs at a high energy and spatial resolution by using transmission electron microscopy and in situ electron energy loss spectroscopy. In the UV region of the spectrum investigated here, the experimental evidence suggests the presence of LPRs and a clear presence of TPRs. We found that, as the NW length increases, the LPR fundamental mode shifts towards higher energies, while the diameter seems to affect the TPR, shifting it to lower energy levels when the diameter increases. These SiNWs can play a role in the development of low−dimensional devices for applications in nano−electronics and nano−photonics. Full article
(This article belongs to the Special Issue New Insights in Low-Dimensional Optoelectronic Materials and Devices)
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10 pages, 2387 KiB  
Article
Monte Carlo Simulation of Quantum-Cutting Nanocrystals as the Luminophore in Luminescent Solar Concentrators
by Qi Nie, Wenqing Li and Xiao Luo
Photonics 2024, 11(6), 553; https://doi.org/10.3390/photonics11060553 - 12 Jun 2024
Viewed by 901
Abstract
Quantum-cutting luminescent solar concentrators (QC-LSCs) have great potential to serve as large-area solar windows. These QC nanocrystals can realize a photoluminescence quantum yield (PLQY) of as high as 200% with virtually zero self-absorption loss. Based on our previous work, we have constructed a [...] Read more.
Quantum-cutting luminescent solar concentrators (QC-LSCs) have great potential to serve as large-area solar windows. These QC nanocrystals can realize a photoluminescence quantum yield (PLQY) of as high as 200% with virtually zero self-absorption loss. Based on our previous work, we have constructed a Monte Carlo simulation model that is suitable to simulate the performance of the QC-LSCs, which can take into account the band-edge emissions and near-infrared emissions of the QC-materials. Under ideal PLQY conditions, CsPbClxBr3−x:Yb3+-based LSCs can reach 12% of the size-independent external quantum efficiency (ηext). Even if LSCs have a certain scattering factor, the CsPbClxBr3−x:Yb3+-based LSCs can still obtain an ηext exceeding 6% in the window size (>1 m2). The flux gain (FG) of the CsPbClxBr3−x:Yb3+-based LSC-PV system can reach 14 in the window size, which is a very encouraging result. Full article
(This article belongs to the Special Issue New Insights in Low-Dimensional Optoelectronic Materials and Devices)
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