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Coatings
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Metasurfaces and Low-Dimensional Materials for Photonic and Optoelectronic Applications
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Metasurfaces and Low-Dimensional Materials for Photonic and Optoelectronic Applications

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Engineering for Energy Harvesting, Conversion, and Storage".

Deadline for manuscript submissions: 20 December 2025 | Viewed by 1086

Special Issue Editor

Prof. Dr. Guanhai Li

E-Mail Website
Guest Editor
Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai 200083, China
Interests: metasurface; infrared single photon detector; plasmonics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Recent advancements in research on metasurfaces and low-dimensional materials have enabled groundbreaking capabilities in controlling light at a nanoscale. These materials, including metasurfaces, thin films, and a variety of low-dimensional structures, offer significant potential for photonic and optoelectronic applications. Metasurfaces provide unprecedented control over light propagation, while low-dimensional materials such as 2D materials, quantum dots, and nanowires enhance performance in devices such as photodetectors, light sources, and energy harvesting systems. The integration of novel materials with advanced device architectures is driving innovation in applications ranging from sensing to imaging and communication systems.

This Special Issue aims to highlight the latest theoretical and experimental developments in the growth, design, modeling, and application of metasurfaces and low-dimensional materials. We welcome contributions covering a wide range of topics, including the following:

  • Metasurfaces for light manipulation, beam shaping, and holography;
  • Optical bound states in the continuum (BIC) and related phenomena for photonic applications;
  • Growth techniques and material engineering for low-dimensional materials and metasurfaces;
  • Device physics and photonic and optoelectronic device modeling based on metasurfaces and low-dimensional materials;
  • Low-dimensional materials for photodetection, energy harvesting, and light emission;
  • The integration of thin films, 2D materials, and metasurfaces in practical devices;
  • Novel fabrication and characterization techniques for metasurfaces and low-dimensional materials;
  • Applications in sensors, displays, communication systems, and imaging;
  • Computational and theoretical studies on metasurfaces and low-dimensional materials.

This Special Issue aims to provide a comprehensive overview of state-of-the-art research in this field, fostering cross-disciplinary discussion and highlighting new research directions for progression in photonics and optoelectronics.

Prof. Dr. Guanhai 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. Coatings 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 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

  • metasurfaces
  • low-dimensional materials
  • optical bound states in the continuum
  • device physics and modeling
  • photoelectric or thermal detection
  • coating

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Published Papers (2 papers)

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Research

13 pages, 2953 KiB  
Article
Voltage Tunable Spoof Surface Plasmon Polariton Waveguide Loaded with Ferroelectric Resonators
by Jiaxiong Shen, Shun Lei, Mingzhe Hu, Chaobiao Zhou, Shengyun Luo and Chuanbin Wang
Coatings 2025, 15(4), 378; https://doi.org/10.3390/coatings15040378 - 23 Mar 2025
Viewed by 256
Abstract
A real-time tunable planar plasmonic waveguide based on a voltage-adjustable ferroelectric resonator is designed and investigated. The laminated ferroelectric compound resonator is composed of a ferroelectric Ba0.85Ca0.15Zr0.9Ti0.1O3 (BCZT) layer, a PCB layer, as well [...] Read more.
A real-time tunable planar plasmonic waveguide based on a voltage-adjustable ferroelectric resonator is designed and investigated. The laminated ferroelectric compound resonator is composed of a ferroelectric Ba0.85Ca0.15Zr0.9Ti0.1O3 (BCZT) layer, a PCB layer, as well as a localized spoof plasmonic metal layer, where the BCZT layer is beneficial for enhancing the voltage tunability in the spoof surface plasmon polariton (SSPP) waveguide. The simulated results show that the tuning range of the notch in the transmission curve, generated by the coupling between the ferroelectric compound resonator and the plasmonic waveguide, can achieve a variation of up to 8.8% thanks to the large tunability value in the BCZT ferroelectric layer. In addition, the notches consist of Fano resonant frequencies, the generation mechanism of which is elaborately discussed in terms of the temporal coupled mode theory. Full article
(This article belongs to the Special Issue Metasurfaces and Low-Dimensional Materials for Photonic and Optoelectronic Applications)
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10 pages, 1534 KiB  
Article
High-Stability WSe2 Homojunction Photodetectors via Asymmetric Schottky and PIN Architectures
by Jiaji Yang, Xin Li, Junzhe Gu, Feilong Yu, Jin Chen, Wei Lu and Xiaoshuang Chen
Coatings 2025, 15(3), 301; https://doi.org/10.3390/coatings15030301 - 4 Mar 2025
Viewed by 627
Abstract
High-stability photovoltaic devices are crucial for low-power or passive applications in fields such as renewable energy, wearable electronics, and deep-space exploration. However, achieving stable and controllable doping in two-dimensional (2D) materials remains challenging, hindering the optimization of photovoltaic performance. Here, we fabricate three [...] Read more.
High-stability photovoltaic devices are crucial for low-power or passive applications in fields such as renewable energy, wearable electronics, and deep-space exploration. However, achieving stable and controllable doping in two-dimensional (2D) materials remains challenging, hindering the optimization of photovoltaic performance. Here, we fabricate three high-performance, self-driven photodetectors based on layered WSe2 with varying doping concentrations. By leveraging asymmetric Schottky barriers and introducing a defect-free, high-bandgap intrinsic region with a long mean free path, we construct a positive–intrinsic–negative (PIN) vertical homojunction that significantly enhances the photogenerated voltage, photon absorption, and carrier transport efficiency. The resulting PIN junction exhibits a photogenerated voltage of up to 0.58 V, a responsivity of 0.35 A/W, and an external quantum efficiency of 83.9%. Moreover, it maintains a reverse saturation current as low as 0.2 nA at 430 K. These results provide a promising route toward the development of high-responsivity, high-stability van der Waals devices and highlight the potential for 2D material-based technologies to operate reliably under extreme conditions. Full article
(This article belongs to the Special Issue Metasurfaces and Low-Dimensional Materials for Photonic and Optoelectronic Applications)
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