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Optoelectronic Semiconductor Materials and Devices

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Optical and Photonic Materials".

Deadline for manuscript submissions: closed (20 July 2024) | Viewed by 4453

Special Issue Editor


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Guest Editor
Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
Interests: colloidal nanocrystals; 2D materials; ultrafast optical spectroscopy; carrier/spin dynamics; lasing; optoelectronic devices

Special Issue Information

Dear Colleagues,

Optoelectronic semiconductor materials possess unique properties that allow them to manipulate and control light–matter interactions, making them essential for the development of various optoelectronic devices. These materials find applications in areas such as photonics, solar cells, light-emitting diodes, sensors, and optical communications. Understanding the fundamental properties, fabrication techniques, and performance optimization of these materials is vital for unlocking their full potential and driving further advancements in optoelectronics.

This Special Issue welcomes contributions on a wide range of topics related to optoelectronic semiconductor materials and devices. Potential areas of interest include, but are not limited to, the following:

  • Novel synthesis and fabrication methods for optoelectronic materials;
  • Characterization techniques for evaluating material properties and device performance;
  • Emerging materials and device architectures for improved efficiency and functionality;
  • Applications of optoelectronic materials in areas such as photonics, energy harvesting, and sensing;
  • Advances in optoelectronic device design, modeling, and simulation.

We invite researchers, scientists, and engineers from around the world to submit their original research papers, reviews, or perspective articles to this Special Issue. By sharing your insights and findings, you will contribute to the collective knowledge and advancement of optoelectronic semiconductor materials and devices.

Dr. Mingjie Li
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

  • optoelectronic materials
  • device fabrication and characterization
  • solar cells
  • sensor technology
  • light-emitting devices
  • material synthesis
  • device modeling
  • performance optimization

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Published Papers (2 papers)

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Research

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20 pages, 4919 KiB  
Article
Climatically Accelerated Material Processes Determining the Long-Term Reliability of Light-Emitting Diodes
by Gabor Harsanyi, Andras Poppe, Janos Hegedüs, Gusztav Hantos, Peter Bojta and Robert Kovacs
Materials 2024, 17(7), 1643; https://doi.org/10.3390/ma17071643 - 3 Apr 2024
Viewed by 774
Abstract
LEDs (Light-Emitting Diodes) are widely applied not only in decorative illumination but also in everyday lighting in buildings, flats, public areas, and automotive fields. These application areas often mean harsh environments, for example, regarding the humidity content of the surrounding air: besides outdoor [...] Read more.
LEDs (Light-Emitting Diodes) are widely applied not only in decorative illumination but also in everyday lighting in buildings, flats, public areas, and automotive fields. These application areas often mean harsh environments, for example, regarding the humidity content of the surrounding air: besides outdoor and automotive illumination, even the household use cases (kitchen, bathroom, cellar) may represent extreme temperature and humidity variations (often reaching relative humidity levels close to 100%) for these devices; thus, their reliability behaviour in such circumstances should be better understood. Thermally activated processes were studied in several previous publications, but less information is available regarding high-humidity environmental tests. Moisture and temperature ageing tests with appropriate environmental parameter settings were performed as accelerated lifetime tests to investigate not only the effect of temperature but also that of humidity on the ageing and reliability of LED packages containing RGB (red green blue) chips and phosphor-converted white (pcW) LEDs. The ageing was followed not only through monitoring optical/electrical/spectral parameters but also with material analysis. Moisture–material interaction models were proposed and set up. It was found that humidity-accelerated ageing processes are more severe than expected from previous assumptions. RGB and pcW LEDs showed strongly different behaviour. Full article
(This article belongs to the Special Issue Optoelectronic Semiconductor Materials and Devices)
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Review

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17 pages, 5110 KiB  
Review
Research and Progress on Organic Semiconductor Power Devices
by Fangyi Li, Jiayi Zhou, Jun Zhang and Jiang Zhao
Materials 2024, 17(13), 3362; https://doi.org/10.3390/ma17133362 - 8 Jul 2024
Viewed by 3372
Abstract
Organic semiconductor power devices have been attracting increasing attention due to their advantages such as flexibility, low fabrication cost, and sustainability. They have found wide applications in fields such as flexible electronic devices and biomedical devices. However, in the field of power applications, [...] Read more.
Organic semiconductor power devices have been attracting increasing attention due to their advantages such as flexibility, low fabrication cost, and sustainability. They have found wide applications in fields such as flexible electronic devices and biomedical devices. However, in the field of power applications, the lack of reliable organic semiconductor power devices is mainly attributed to the limited thermal stability and electrical stability of organic materials. This article provides a detailed review of the development status of organic semiconductor power devices from three aspects: device structure, organic materials, and fabrication methods. It clarifies that the future development goal is to enhance the voltage resistance and thermal stability of organic transistors through higher-performance structure design, higher-mobility materials, and higher-quality fabrication methods. The continuous innovation and development of the structures, materials, and fabrication of these devices will generate more novel devices, offering more possibilities for the application of organic semiconductor power devices. This information is of great reference value and guidance significance for engineers in related fields. Full article
(This article belongs to the Special Issue Optoelectronic Semiconductor Materials and Devices)
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