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        <title>Frontiers in Electronics | Optoelectronics section | New and Recent Articles</title>
        <link>https://www.frontiersin.org/journals/electronics/sections/optoelectronics</link>
        <description>RSS Feed for Optoelectronics section in the Frontiers in Electronics journal | New and Recent Articles</description>
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        <pubDate>2026-04-15T19:39:46.665+00:00</pubDate>
        <ttl>60</ttl>
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        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/felec.2024.1372631</guid>
        <link>https://www.frontiersin.org/articles/10.3389/felec.2024.1372631</link>
        <title><![CDATA[Scientific explanation of e+ and Weyl fermion for injecting semiconductor devices]]></title>
        <pubdate>2025-01-14T00:00:00Z</pubdate>
        <category>Perspective</category>
        <author>Arwa Saud Abbas</author>
        <description><![CDATA[The scientific explanation of utilizing the positron and Weyl fermion in semiconductors is presented. In view of the slow e+ beam-generation development for imaging technology alongside the Weyl fermion which carries charge like an electron, but has no mass, thus moves much faster, injecting semiconductor devices is addressed. The information gained from this prediction has allowed the broadening of its implementation to semiconductor technology with electronic excitation using sources other than e-. Developing the positron microbeam and Weyl fermions can be described with the concept of type I positron beam source is an alternative source of electron beam, thus harnessing the generation of γ-ray radiations inside the semiconductor heterostructures with indicating e+ and e− interaction with materials are different and type II Weyl fermions. Thus, the properties of positrons and Weyl fermion are considered suitable for carrier transport in optoelectronics. Perspectives of the development of alternative beam source for super-transport are provided.]]></description>
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        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/felec.2022.837260</guid>
        <link>https://www.frontiersin.org/articles/10.3389/felec.2022.837260</link>
        <title><![CDATA[Editorial: Next Generation Optoelectronics With Emerging Hybrid Materials]]></title>
        <pubdate>2022-02-07T00:00:00Z</pubdate>
        <category>Editorial</category>
        <author>Rosanna Mastria</author><author>Vincenzo Pecunia</author><author>Aurora Rizzo</author>
        <description></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/felec.2021.758603</guid>
        <link>https://www.frontiersin.org/articles/10.3389/felec.2021.758603</link>
        <title><![CDATA[Quasi-Zero Dimensional Halide Perovskite Derivates: Synthesis, Status, and Opportunity]]></title>
        <pubdate>2021-10-11T00:00:00Z</pubdate>
        <category>Review</category>
        <author>Vanira Trifiletti</author><author>Ceyla Asker</author><author>Giorgio Tseberlidis</author><author>Stefania Riva</author><author>Keran Zhao</author><author>Weidong Tang</author><author>Simona Binetti</author><author>Oliver Fenwick</author>
        <description><![CDATA[In recent decades, many technological advances have been enabled by nanoscale phenomena, giving rise to the field of nanotechnology. In particular, unique optical and electronic phenomena occur on length scales less than 10 nanometres, which enable novel applications. Halide perovskites have been the focus of intense research on their optoelectronic properties and have demonstrated impressive performance in photovoltaic devices and later in other optoelectronic technologies, such as lasers and light-emitting diodes. The most studied crystalline form is the three-dimensional one, but, recently, the exploration of the low-dimensional derivatives has enabled new sub-classes of halide perovskite materials to emerge with distinct properties. In these materials, low-dimensional metal halide structures responsible for the electronic properties are separated and partially insulated from one another by the (typically organic) cations. Confinement occurs on a crystal lattice level, enabling bulk or thin-film materials that retain a degree of low-dimensional character. In particular, quasi-zero dimensional perovskite derivatives are proving to have distinct electronic, absorption, and photoluminescence properties. They are being explored for various technologies beyond photovoltaics (e.g. thermoelectrics, lasing, photodetectors, memristors, capacitors, LEDs). This review brings together the recent literature on these zero-dimensional materials in an interdisciplinary way that can spur applications for these compounds. The synthesis methods, the electrical, optical, and chemical properties, the advances in applications, and the challenges that need to be overcome as candidates for future electronic devices have been covered.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/felec.2021.726171</guid>
        <link>https://www.frontiersin.org/articles/10.3389/felec.2021.726171</link>
        <title><![CDATA[MAPbI3 Deposition by LV-PSE on TiO2 for Photovoltaic Application]]></title>
        <pubdate>2021-09-24T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Emanuele Smecca</author><author>Ajay Kumar Jena</author><author>Ioannis Deretzis</author><author>Salvatore Valastro</author><author>Salvatore Sanzaro</author><author>Giovanni Mannino</author><author>Corrado Bongiorno</author><author>Antonino La Magna</author><author>Tsutomu Miyasaka</author><author>Alessandra Alberti</author>
        <description><![CDATA[Hybrid perovskites are one of the most popular materials nowadays due to their very exclusive properties. To mitigate costs, complexity, and environmental impact, in this work, we have prepared methylammonium lead iodide (MAPbI3) films by a two-step Low-Vacuum Proximity-Space-Effusion (LV-PSE). The LV-PSE method exploits the low vacuum and the short diffusion path from the precursor source to have high thermal energy and partial pressure of the sublimated species close to the substrate. To this aim, the substrate is located at a medium distance (∼2 cm) from the melting pots in a low-vacuum chamber at ∼4 × 10−2 mbar. In the first step, a PbI2 film is deposited on a substrate; in the second step, the conversion into MAPbI3 occurs via an adsorption-incorporation-migration mechanism through the evaporation of methylammonium iodide (MAI) reagents. To exploit the potential of the conversion reaction, 190 nm MAPbI3 layers are deposited on TiO2 substrates. The layers were characterized in terms of crystal structure by X-ray diffraction (XRD) analyses, which showed the exclusive presence of MAPbI3 confirming the complete conversion of the PbI2 film. Scanning Electron Microscopy (SEM) analyses revealed a flat uniform pinhole-free coverage of the substrates and good conformational coverage of the TiO2 underlayer. Transmission Electron Microscopy (TEM) analyses addressed the formation of the tetragonal phase and the absence of the amorphous phase in the film. Spectroscopic ellipsometry (SE) analyses were used to explore the optical properties and the stability of the MAPbI3 layer at different temperatures and ambient conditions. As proof of concept, solar cell architectures were prepared using TiO2 as Electron Transporting Layer (ETL), Spiro-OMeTAD as Hole Transporting Layer (HTL), and Au as a contact to exploit the new up-scalable and clean deposition method. Using just ∼190 nm thick layers, the best efficiency reached with this architecture was 6.30%.]]></description>
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        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/felec.2021.711103</guid>
        <link>https://www.frontiersin.org/articles/10.3389/felec.2021.711103</link>
        <title><![CDATA[Review and Harmonization of the Life-Cycle Global Warming Impact of PV-Powered Hydrogen Production by Electrolysis]]></title>
        <pubdate>2021-09-09T00:00:00Z</pubdate>
        <category>Review</category>
        <author>Olga Kanz</author><author>Karsten Bittkau</author><author>Kaining Ding</author><author>Uwe Rau</author><author>Angèle Reinders</author>
        <description><![CDATA[This work presents a review of life-cycle assessment (LCA) studies of hydrogen electrolysis using power from photovoltaic (PV) systems. The paper discusses the assumptions, strengths and weaknesses of 13 LCA studies and identifies the causes of the environmental impact. Differences in assumptions of system boundaries, system sizes, evaluation methods, and functional units make it challenging to directly compare the Global Warming Potential (GWP) resulting from different studies. To simplify this process, 13 selected LCA studies on PV-powered hydrogen production have been harmonized following a consistent framework described by this paper. The harmonized GWP values vary from 0.7 to 6.6 kg CO2-eq/kg H2 which can be considered a wide range. The maximum absolute difference between the original and harmonized GWP results of a study is 1.5 kg CO2-eq/kg H2. Yet even the highest GWP of this study is over four times lower than the GWP of grid-powered electrolysis in Germany. Due to the lack of transparency of most LCAs included in this review, full identification of the sources of discrepancies (methods applied, assumed production conditions) is not possible. Overall it can be concluded that the environmental impact of the electrolytic hydrogen production process is mainly caused by the GWP of the electricity supply. For future environmental impact studies on hydrogen production systems, it is highly recommended to 1) divide the whole system into well-defined subsystems using compression as the final stage of the LCA and 2) to provide energy inputs/GWP results for the different subsystems.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/felec.2021.712785</guid>
        <link>https://www.frontiersin.org/articles/10.3389/felec.2021.712785</link>
        <title><![CDATA[Stability of Perovskite Solar Cells: Degradation Mechanisms and Remedies]]></title>
        <pubdate>2021-08-20T00:00:00Z</pubdate>
        <category>Review</category>
        <author>Sayantan Mazumdar</author><author>Ying Zhao</author><author>Xiaodan Zhang</author>
        <description><![CDATA[Inorganic–organic metal halide perovskite light harvester-based perovskite solar cells (PSCs) have come to the limelight of solar cell research due to their rapid growth in efficiency. At present, stability and reliability are challenging aspects concerning the Si-based or thin film-based commercial devices. Commercialization of perovskite solar cells remains elusive due to the lack of stability of these devices under real operational conditions, especially for longer duration use. A large number of researchers have been engaged in an ardent effort to improve the stability of perovskite solar cells. Understanding the degradation mechanisms has been the primary importance before exploring the remedies for degradation. In this review, a methodical understanding of various degradation mechanisms of perovskites and perovskite solar cells is presented followed by a discussion on different steps taken to overcome the stability issues. Recent insights on degradation mechanisms are discussed. Various approaches of stability enhancement are reviewed with an emphasis on reports that complied with the operational standard for practical application in a commercial solar module. The operational stability standard enacted by the International Electrotechnical Commission is especially discussed with reports that met the requirements or showed excellent results, which is the most important criterion to evaluate a device’s actual prospect to be utilized for practical applications in commercial solar modules. An overall understanding of degradation pathways in perovskites and perovskite solar cells and steps taken to overcome those with references including state-of-the-art devices with promising operational stability can be gained from this review.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/felec.2021.703182</guid>
        <link>https://www.frontiersin.org/articles/10.3389/felec.2021.703182</link>
        <title><![CDATA[Morphological and Optical Tuning of Lead-Free Cs2SnX6 (X = I, Br) Perovskite Nanocrystals by Ligand Engineering]]></title>
        <pubdate>2021-06-21T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Alessandro Veronese</author><author>Carlo Ciarrocchi</author><author>Marcello Marelli</author><author>Paolo Quadrelli</author><author>Maddalena Patrini</author><author>Lorenzo Malavasi</author>
        <description><![CDATA[In order to overcome the toxicity of lead halide perovskites, in recent years the research has focused on replacing lead with more environmentally friendly metals like tin, germanium, bismuth or antimony. However, lead-free perovskites still present instability issues and low performances that do not make them competitive when compared to their lead-based counterparts. Here we report the synthesis of lead-free Cs2SnX6 (X = Br, I) nanostructures of different shapes by using various surface ligands. These compounds are a promising alternative to lead halide perovskites in which the replacement of divalent lead (Pb(II)) with tetravalent tin (Sn(IV)) causes a modification of the standard perovskite structure. We investigate the effects of different amines on the morphology and size of Cs2SnX6 (X = Br, I) nanocrystals, presenting a facile hot-infection method to directly synthesize three-dimensional (3D) nanoparticles as well as two-dimensional (2D) nanoplatelets. The amines not only modify the shape of the crystals, but also affect their optical properties: increasing the length of the amine carbon chain we observe a widening in the bandgap of the compounds and a blue-shift of their emission peak. Alongside the tuning of the chemical composition and the reduction of the crystal size, our study offers a new insight in controlling the physical properties of perovskite nanocrystals by means of the capping ligands, paving the way for future research on lead-free materials.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/felec.2021.643687</guid>
        <link>https://www.frontiersin.org/articles/10.3389/felec.2021.643687</link>
        <title><![CDATA[Improved Stability of Organic Photovotlaic Devices With FeCl3 Intercalated Graphene Electrodes]]></title>
        <pubdate>2021-04-23T00:00:00Z</pubdate>
        <category>Original Research</category>
        <author>Kieran K. Walsh</author><author>Conor Murphy</author><author>Saverio Russo</author><author>Monica F. Craciun</author>
        <description><![CDATA[In this paper, we present the first organic photovoltaic (OPV) devices fabricated with FeCl3 intercalated few layer graphene (i-FLG) electrodes. i-FLG electrodes were first fabricated and characterized by electrical and spectroscopic means, showing enhanced conductive properties compared to pristine graphene. These electrodes were then used in the fabrication of OPV devices and tested against devices made with commercially available Indium Tin Oxide (ITO) electrodes. Both types of device achieved similar efficiencies, while the i-FLG based device exhibited superior charge transport properties due to the increase in work function characterizing i-FLG. Both types of device underwent a stability study using both periodic and continuous illumination measurements, which revealed i-FLG based OPVs to be significantly more stable than those based on ITO. These improvements are expected to translate to increased device lifetimes and a greater total energy payback from i-FLG based photovoltaic devices. These results highlight the potential benefits of using intercalated graphene materials as an alternative to ITO in photovoltaic devices.]]></description>
      </item><item>
        <guid isPermaLink="true">https://www.frontiersin.org/articles/10.3389/felec.2020.579890</guid>
        <link>https://www.frontiersin.org/articles/10.3389/felec.2020.579890</link>
        <title><![CDATA[Specialty Grand Challenges in Optoelectronics]]></title>
        <pubdate>2020-08-25T00:00:00Z</pubdate>
        <category>Specialty Grand Challenge</category>
        <author>Antonio Abate</author>
        <description></description>
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