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Optoelectronic Devices and Sensors
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Optoelectronic Devices and Sensors

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Physical Sensors".

Deadline for manuscript submissions: 20 January 2026 | Viewed by 3139

Special Issue Editor

Prof. Dr. Liang-Wen Ji

E-Mail Website
Guest Editor
Department of Electro-Optical Engineering, National Formosa University, Yunlin, Taiwan
Interests: nano-optoelectronics; photo detector; nanomaterials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The field of optoelectronic devices, which involves the conversion of electrical to optical or optical to electrical signals, is advancing at a rapid pace, bringing about significant advancements in science and industry. As we continue to strive towards overcoming performance limitations in these devices, the development and exploration of advanced and emerging materials play a crucial role in driving progress.

With this in mind, we are pleased to announce the Special Issue on “Optoelectronic Devices and Sensors” that aims to showcase the latest advancements, challenges, and opportunities in the realm of materials for state-of-the-art optoelectronic devices. This Special Issue covers a broad range of topics including optoelectronic devices, nanophotonics, plasmonics, metamaterials, and spin- and chiral-optoelectronic materials and devices. Special attention will be paid to the study of epitaxial growth modes of monolayer-thick (Al,Ga)N nanoheterostructures, charge carrier localization effects, and the exciton nature of luminescence in such quantum-sized structures. We welcome contributions from both experimental and theoretical perspectives.

However, please note that this Special Issue is not limited to the aforementioned topics, and we encourage submissions related to other relevant aspects as well.

We invite you to submit to this exciting Special Issue your full papers, reviews, or communications that focus on emerging materials for optoelectronics and their device applications.

Prof. Dr. Liang-Wen Ji
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. Sensors 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

  • optoelectronics
  • thin films
  • gas sensors
  • microelectronics
  • photodetectors
  • nanophotonics
  • AlGaN-based nanoheterostructures

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Published Papers (3 papers)

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19 pages, 4237 KB  
Article
Numerical Study of Incidence Angle-Tuned, Guided-Mode Resonant, Metasurfaces-Based Sensors for Glucose and Blood-Related Analytes Detection
by Zeev Fradkin, Maxim Piscklich, Moshe Zohar and Mark Auslender
Sensors 2025, 25(18), 5852; https://doi.org/10.3390/s25185852 (registering DOI) - 19 Sep 2025
Abstract
In optical one-dimensional grating-on-layer planar structures, an optical resonance occurs when the incident light wave becomes phase-matched to a leaky waveguide mode excited in the layer underneath the grating by an appropriate tuning of the grating periodicity. Changing the refractive indices of the [...] Read more.
In optical one-dimensional grating-on-layer planar structures, an optical resonance occurs when the incident light wave becomes phase-matched to a leaky waveguide mode excited in the layer underneath the grating by an appropriate tuning of the grating periodicity. Changing the refractive indices of the grating’s constituents, and/or thickness, changes the resonance frequency. In the case of a two-dimensional grating atop such a smooth layer, a similar and also cavity-mode resonance can occur. This idea has straightforward usage in diverse optical sensor applications. In this study, a novel guided-mode resonance sensor design for detecting glucose and hemoglobin in minute concentrations at a wide range of incidence angles is presented. In this design, materials of the grating, such as a polymer and cesium-lead halide with a perovskite crystal structure, are examined, which will allow flexible, low-cost fabrication by soft-lithography/imprint-lithography methods. The sensitivity, figure of merit, and quality factor are reported for one- and two-dimensional grating structures. The simulations performed are based on rigorous coupled-wave analysis. Optical resonance quality factor of ∼5·105 is achieved at oblique incidence for a structure comprising a one-dimensional grating etched in a poly-vinylidene chloride layer atop a silicon nitride waveguide layer on a substrate. Record values of the above-noted characteristics are achieved with a synergetic interplay of the materials, structural dimensions, incidence angle, polarization, and grating geometry. Full article
(This article belongs to the Special Issue Optoelectronic Devices and Sensors)
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16 pages, 24435 KB  
Article
Real-Time Bio-Inspired Polarization Heading Resolution System Based on ZYNQ Heterogeneous Computing
by Yuan Li, Zhuo Liu, Xiaohui Dong and Fangchen Dong
Sensors 2025, 25(9), 2744; https://doi.org/10.3390/s25092744 - 26 Apr 2025
Viewed by 499
Abstract
Polarization navigation is an emerging navigation technology, that exhibits significant advantages, including strong anti-interference capability and non-cumulative errors over time, making it highly promising for applications in aerospace, autonomous driving, and robotics. To address the requirements of high integration and low power consumption [...] Read more.
Polarization navigation is an emerging navigation technology, that exhibits significant advantages, including strong anti-interference capability and non-cumulative errors over time, making it highly promising for applications in aerospace, autonomous driving, and robotics. To address the requirements of high integration and low power consumption for tri-directional polarization navigation sensors, this study proposes a system-on-chip (SoC) design solution. The system employs the ZYNQ MPSoC (Xilinx Inc., San Jose, CA, USA) as its core, leveraging hardware acceleration on the Programmable Logic (PL) side for three-angle polarization image data acquisition, image preprocessing, and edge detection. Simultaneously, the Processing System (PS) side orchestrates task coordination, performs polarization angle resolution, and extracts the solar meridian via Hough transform. Experimental results demonstrate that the system achieves an average heading angle output time interval of 9.43 milliseconds (ms) with a mean error of 0.50°, fulfilling the real-time processing demands of mobile devices. Full article
(This article belongs to the Special Issue Optoelectronic Devices and Sensors)
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19 pages, 3429 KB  
Article
Flexible Solar-Blind Ultraviolet Photodetector Based on β-Ga2O3 Nanowire Channel Bridge Structure: Combining High Responsivity and Strain Stability
by Jinyun Liu, Tengfei Ma, Huihui Tian, Wuxu Zhang, Zhaopeng Liu, Zhiyi Gao, Baoru Bian, Yuanzhao Wu, Yiwei Liu, Jie Shang and Run-Wei Li
Sensors 2025, 25(5), 1563; https://doi.org/10.3390/s25051563 - 4 Mar 2025
Cited by 1 | Viewed by 1766
Abstract
Solar-blind ultraviolet photodetectors are gaining attention for their high signal-to-noise ratio and strong anti-interference capabilities. With the rising demand for applications in high-strain environments, such as fire rescue robots and smart firefighting suits, a flexible photodetector that maintains stable performance under bending strain [...] Read more.
Solar-blind ultraviolet photodetectors are gaining attention for their high signal-to-noise ratio and strong anti-interference capabilities. With the rising demand for applications in high-strain environments, such as fire rescue robots and smart firefighting suits, a flexible photodetector that maintains stable performance under bending strain is needed. Current devices struggle to balance strain cycle stability and responsivity. This paper presents a β-Ga2O3 nanowire photodetector on a flexible ultra-thin silicon substrate, fabricated using microchannel engraving and chemical vapor deposition. The device achieves a responsivity of 266 mA W−1 without strain, with less than 5.5% variation in photogenerated current under bending strain (0–60°), and a response time of 360 ms. After 500 cycles of 60° bending, the photogenerated current changes by only 1.5%, demonstrating excellent stability and responsivity, with broad application potential in flame detection and biological sensing. Full article
(This article belongs to the Special Issue Optoelectronic Devices and Sensors)
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