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Advances in the Manufacturing of Optical Materials, in Optical Sensing, and in Material Performance Analysis

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

Deadline for manuscript submissions: 20 August 2025 | Viewed by 2122

Special Issue Editors

Dr. Na Zhao

E-Mail Website
Guest Editor
The State Key Laboratory for Mechanical Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an 710054, China
Interests: optical fibers; optical sensors; fiber Bragg grating; 2D materials
Special Issues, Collections and Topics in MDPI journals
Dr. Changsheng Li

E-Mail Website
Guest Editor
School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710054, China
Interests: precision; ultraprecision machining and measurement
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The ultraprecision processing of optical components and the progress made in the sensing capabilities of optical devices, as well as the analysis of their material properties, are all key focuses within this research topic. Starting from basic material theories, we aim to investigate advanced manufacturing methods and technologies that can meet the needs of high-end equipment, such as laser fusion devices, lithography machines, and Earth observation satellites. By combining optical sensing, surface manufacturing, and material analysis, we aim to develop innovative solutions for precision manufacturing and advanced applications in optical materials.

This Special Issue seeks contributions exploring various areas including, but not limited to, the following:

  • Innovative approaches to the manufacturing of optical materials;
  • Advancements in optical sensing techniques and applications;
  • Analysis of material performance in optical systems;
  • Novel methods for characterizing optical materials;
  • Experimental insights into the behavior of materials used in optical devices;
  • Nondestructive testing methodologies for the evaluation of optical materials.

Dr. Na Zhao
Dr. Changsheng Li
Guest Editors

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

  • optical fabrication
  • ultraprecision machining
  • micro-structure manufacturing
  • optical fiber sensors
  • material analysis

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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Research

14 pages, 9297 KiB  
Article
The Investigation of Ni-Doped SrFeO3−δ Perovskite for a Symmetrical Electrode in Proton Ceramic Fuel Cells
by Jiajia Cui, Yueyue Sun, Chaofan Yin, Hao Wang, Zhengrong Liu, Zilin Zhou, Kai Wu and Jun Zhou
Materials 2025, 18(7), 1460; https://doi.org/10.3390/ma18071460 - 25 Mar 2025
Viewed by 307
Abstract
The development of symmetrical solid oxide fuel cells with identical cathode and anode is beneficial for thermal matching and reducing the cost. Herein, proton-conducting electrolyte and novel high catalytic activity electrode material for symmetrical solid oxide fuel cells are proposed. Ni-doping at the [...] Read more.
The development of symmetrical solid oxide fuel cells with identical cathode and anode is beneficial for thermal matching and reducing the cost. Herein, proton-conducting electrolyte and novel high catalytic activity electrode material for symmetrical solid oxide fuel cells are proposed. Ni-doping at the B-site of (Sr0.8Ce0.2)0.95FeO3−δ (SCF) indicates reduced cell edge lengths, cell volume, and a more porous honeycomb structure. The B-site elements in oxide tend to have a high oxidation state via Ni-doping. Simple doping modification in SCF causes better thermal matching between the electrode and electrolyte and form more oxygen vacancies at the operating temperature. At the anode side, Ni-doping improves the stability of the symmetric electrode in reducing the atmosphere. The polarization resistance of symmetrical cells for new electrode material is half of the original both in oxidation and reduction atmosphere, which indicates boosted electrochemical performance for the cathode and anode. At the same time, Ni-doping reduces the impedance activation energy of the anode reaction in symmetric cells. The output performance of the cell is 210.4 mW·cm−2 at 750 °C and the thickness of the electrolyte is 400 μm, achieving a highly efficient symmetrical electrode in proton ceramic fuel cells. The new finding of materials provides a novel high efficiency symmetrical electrode and proposes guidance for the improvement of solid oxide fuel cells at a reduced temperature. Full article
(This article belongs to the Special Issue Advances in the Manufacturing of Optical Materials, in Optical Sensing, and in Material Performance Analysis)
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18 pages, 3890 KiB  
Article
Polyethylene Glycol Diacrylate Adapted Photopolymerization Material for Contact Lens with Improved Elastic Modulus Properties
by Yamin Chen, Dianyang Li, Yougen Chen and Hui Fang
Materials 2025, 18(4), 827; https://doi.org/10.3390/ma18040827 - 13 Feb 2025
Viewed by 772
Abstract
Four kinds of silicone hydrogel transparent contact lenses (CLs) with different formulations were prepared by the free radical photocuring polymerization. By mixing polyethylene glycol diacrylate (PEGDA) of 1000 Da with ethylene glycol dimethacrylate (EGDMA) and adding other silicone monomers and hydrophilic monomers, the [...] Read more.
Four kinds of silicone hydrogel transparent contact lenses (CLs) with different formulations were prepared by the free radical photocuring polymerization. By mixing polyethylene glycol diacrylate (PEGDA) of 1000 Da with ethylene glycol dimethacrylate (EGDMA) and adding other silicone monomers and hydrophilic monomers, the transparency and flexibility of the material were successfully achieved. By optimizing the weight percentage of each component, the best balance of optical performance can be achieved. The photocuring properties of the materials were characterized by electronic universal test, double-beam UV-visible spectrophotometer, Atomic Force Microscope (AFM), Scanning Electron Microscope (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). The results showed that the addition of higher PEGDA content reduces the elastic modulus, improves curing efficiency, improves equilibrium water content (EWC), and enhances light transmission. Hydrogels containing only high PEGDA but no EGDMA showed similar curing rates, water content, and elastic modulus, but had the worst optical transparency, far inferior to the materials mixed with PEGDA and EGDMA. Additionally, imaging performance of the CLs was further evaluated through simulation analysis using Ansys Zemax OpticStudio2024 software. This research provides a new choice of material consideration to improve the performance and wearing comfort of CLs. Full article
(This article belongs to the Special Issue Advances in the Manufacturing of Optical Materials, in Optical Sensing, and in Material Performance Analysis)
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14 pages, 3230 KiB  
Article
Excellent Electrochromic Properties of Ti4+-Induced Nanowires V2O5 Films
by Yufei Deng, Hua Li, Jian Liang, Jun Liao, Min Huang, Rui Chen, Yinggui Long, Jacques Robichaud and Yahia Djaoued
Materials 2024, 17(19), 4680; https://doi.org/10.3390/ma17194680 - 24 Sep 2024
Viewed by 740
Abstract
Ti4+-doped V2O5 films with nanowires on top and a dense, long nanorod layer on the bottom were successfully fabricated using the spin-coating route. During the electrochromic cycling, charge transfer resistance (Rct) decreases while ion-diffusion ability [...] Read more.
Ti4+-doped V2O5 films with nanowires on top and a dense, long nanorod layer on the bottom were successfully fabricated using the spin-coating route. During the electrochromic cycling, charge transfer resistance (Rct) decreases while ion-diffusion ability (KΩ) rapidly drops in the first ten cycles and then levels off. Low Rct and morphology of nanowires collaboratively improved the electrochromic behavior of Ti4+-doped V2O5 films by enhancing the charge transfer speed and minimizing polarization and dissolution. The obtained Ti4+-doped V2O5 film shows better electrochromic properties than the undoped V2O5 film, with a coloration efficiency (CE) of 34.15 cm2/C, coloration time of 9.00 s, and cyclic retention of 82.6% at cycle 100. In contrast, the corresponding values for the undoped V2O5 film were 23.57 cm2/C, 13.16 s, and 43.6%. Full article
(This article belongs to the Special Issue Advances in the Manufacturing of Optical Materials, in Optical Sensing, and in Material Performance Analysis)
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