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Optoelectronic and Functional Materials for Advanced Sensor Applications

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

Deadline for manuscript submissions: 31 December 2025 | Viewed by 664

Special Issue Editor


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Guest Editor
Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
Interests: photodetectors; non-volatile memory devices; nanomaterials; semiconductors; magnetic properties

Special Issue Information

Dear Colleagues,

The rapid advancement in optoelectronic materials and the development of novel heterostructures have significantly expanded the landscape of modern sensing technologies. Optoelectronic materials, encompassing semiconductors, alloys, composite structures, and specifically engineered heterojunctions, have shown remarkable promise in enhancing the sensitivity, selectivity, stability, and multifunctionality of sensor devices. These advancements are pivotal for diverse applications such as environmental monitoring, biomedical diagnostics, chemical detection, energy harvesting, and industrial automation.

This Special Issue aims to highlight state-of-the-art research in optoelectronic materials and heterostructures designed for cutting-edge sensor technologies. We welcome original research papers, comprehensive reviews, and insightful perspectives that explore innovative material synthesis, device integration, theoretical modeling, and performance characterization of advanced sensor systems. Contributions that demonstrate novel material engineering approaches, enhanced device architectures, improved sensing mechanisms, or innovative applications in emerging fields are particularly encouraged.

We invite submissions covering, but not limited to, the following topics:

  • Optoelectronic semiconductors and alloys for sensors;
  • Design and synthesis of novel heterostructures and heterojunctions;
  • Innovative sensing platforms based on composite and multifunctional materials;
  • Device fabrication techniques and integration strategies;
  • Fundamental understanding and modeling of sensing mechanisms;
  • Performance optimization and stability enhancement of optoelectronic sensors;
  • Application-specific sensor developments in healthcare, environment, industry, and energy fields.

Dr. Jamal Kazmi
Guest Editor

Manuscript Submission Information

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Keywords

  • optoelectronic materials
  • heterostructures
  • sensor technologies
  • heterojunction devices
  • semiconductor sensors
  • multifunctional materials
  • nanostructured sensors
  • sensor performance
  • environmental and biomedical sensing
  • device fabrication

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Published Papers (1 paper)

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Research

18 pages, 2306 KB  
Article
The Design and Validation of an Intensity-Modulated Multipoint Fiber-Optic Liquid-Level Sensor
by Abdul Ghaffar, Sanku Niu, Mujahid Mehdi, Sadam Hussain, Ahmed Muddassir Khan, Zamir Ahmed Abro, Muhammad Saleh Urf Kumail Haider, Zhanyou Chang, Xiaoyu Chen and Salamat Ali
Sensors 2025, 25(16), 5009; https://doi.org/10.3390/s25165009 - 13 Aug 2025
Viewed by 441
Abstract
This study introduces a cost-effective solution and sensor arrays for the multipoint liquid-level measuring sensor based on an intensity modulation technique. The sensor structure is based on the twisting of two fibers and creates cascading to achieve a multipoint detection. Three sensors are [...] Read more.
This study introduces a cost-effective solution and sensor arrays for the multipoint liquid-level measuring sensor based on an intensity modulation technique. The sensor structure is based on the twisting of two fibers and creates cascading to achieve a multipoint detection. Three sensors are fabricated on a single illuminated polymer optical fiber. The twisting creates side-coupling between two fibers, and the coupled power is attenuated when liquid emerges in the coupled region. Each sensor has its own output source, which is connected to the power meter. When the liquid-level increases, the coupled power is continuously decreased. The multipoint liquid-level sensor is theoretical and experimentally tested. The experimental results show that sensors have a good response and linearity. The sensors are able to measure the liquid-level up to 12 cm and have a sensitivity of about 0.2726 μW/cm, 0.1715 μW/cm, and 0.1281 μW/cm, respectively. The different flow rate (50 mL/min–300 mL/min) is also analyzed to validate the dynamic response of the sensor. The sensor demonstrates a high sensitivity and resolution in the liquid-level detection. Meanwhile, the liquid-level variation is individually and simultaneously measured. The system does not require any decoupling technique as the system relies on a single LED source, and the coupled power is individually measured from each power meter. The system represents a significant advancement in precise liquid-level sensing technology, as the system has advantages of a flexible, durable, cost-effective, and active response with respect to changes in the liquid-level. Full article
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