Advances in Photodetecting Materials, Devices and Applications

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "D:Materials and Processing".

Deadline for manuscript submissions: closed (30 September 2024) | Viewed by 9804

Special Issue Editor


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Guest Editor
School of Microelectronics Science and Technology, Sun Yat-sen University Zhuhai Campus, Zhuhai 519082, China
Interests: optoelectronic devices; nanomaterials; photodetectors
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Special Issue Information

Dear Colleagues,

Photodetection, which converts optical signals into electrical signals, is an irreplaceable source of information. Photodetectors with different response spectra have been used in various applications, such as imaging, communication, measurement, monitoring, etc.

To meet the growing demand for higher figure-of-merit parameters and new application scenarios, it is crucial to improve the performance of photodetectors through the development of new materials, novel device design, and exploration of new application. Accordingly, this Special Issue seeks to showcase research papers and review articles on (1) the methodology of synthesizing emerging photodetecting materials, e.g., perovskites, polymers, novel two-dimensional materials, and quantum dots; (2) photodetectors with novel structures, physics, and high figure-of-merit parameters; (3) demonstration of new applications of photodetectors.

We look forward to receiving your submissions.

Dr. Zhanfeng Huang
Guest Editor

Manuscript Submission Information

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Keywords

  • photodetectors
  • optoelectronic materials
  • sensors
  • imaging

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Published Papers (3 papers)

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Research

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12 pages, 5245 KiB  
Article
Solution-Processed CsPbBr3 Perovskite Photodetectors for Cost-Efficient Underwater Wireless Optical Communication System
by Jiakang Wei, Yutong Deng, Jianjian Fei, Tian Yang, Pinhao Chen, Lu Zhu and Zhanfeng Huang
Micromachines 2024, 15(10), 1185; https://doi.org/10.3390/mi15101185 - 25 Sep 2024
Viewed by 1070
Abstract
Underwater wireless optical communication (UWOC) has attracted increasing attention due to its advantages in bandwidth, latency, interference resistance, and security. Photodetectors, as a crucial part of receivers, have been continuously developed with the great progress that has been made in advanced materials. Metal [...] Read more.
Underwater wireless optical communication (UWOC) has attracted increasing attention due to its advantages in bandwidth, latency, interference resistance, and security. Photodetectors, as a crucial part of receivers, have been continuously developed with the great progress that has been made in advanced materials. Metal halide perovskites emerging as promising optoelectronic materials in the past decade have been used to fabricate various high-performance photodetectors. In this work, high-performance CsPbBr3 perovskite PDs were realized via solution process, with low noise, a high responsivity, and a fast response. Based on these perovskite PDs, a cost-efficient UWOC system was successfully demonstrated on an FPGA platform, achieving a data rate of 6.25 Mbps with a low bit error rate of 0.36%. Due to lower background noise under environment illumination, perovskite PDs exhibit better communication stability before reaching a data rate threshold; however, the BER increases rapidly due to the long fall time, resulting in difficulty in distinguishing switching signals. Reducing the fall time of perovskite PDs and using advanced coding techniques can help to further improve the performance of the UWOC system based on perovskite PDs. This work not only demonstrates the potential of perovskite PDs in the application of UWOC, but also improves the development of a cost-effective UWOC system based on FPGAs. Full article
(This article belongs to the Special Issue Advances in Photodetecting Materials, Devices and Applications)
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13 pages, 4279 KiB  
Article
Highly Sensitive Plasmon Refractive Index Sensor Based on MIM Waveguide
by Wen Jiang, Shubin Yan, Xiaoran Yan, Aiwei Xu, Guang Liu, Chong Wang, Lei Li, Xiangyang Mu and Guowang Gao
Micromachines 2024, 15(8), 987; https://doi.org/10.3390/mi15080987 - 30 Jul 2024
Cited by 1 | Viewed by 1220
Abstract
This paper introduces a novel plasmon refractive index nanosensor structure based on Fano resonance. The structure comprises a metal–insulator–metal (MIM) waveguide with an inverted rectangular cavity and a circle minus a small internal circle plus a rectangular cavity (CMSICPRC). This study employs the [...] Read more.
This paper introduces a novel plasmon refractive index nanosensor structure based on Fano resonance. The structure comprises a metal–insulator–metal (MIM) waveguide with an inverted rectangular cavity and a circle minus a small internal circle plus a rectangular cavity (CMSICPRC). This study employs the finite element method (FEM) to analyze the sensing characteristics of the structure. The results demonstrate that the geometrical parameters of specific structures exert a considerable influence on the sensing characteristics. Simulated experimental data show that the maximum sensitivity of this structure is 3240 nm/RIU, with a figure of merit (FOM) of 52.25. Additionally, the sensor can be used in biology, for example, to detect the concentration of hemoglobin in blood. The sensitivity of the sensor in this application, according to our calculations, can be 0.82 nm∙g/L. Full article
(This article belongs to the Special Issue Advances in Photodetecting Materials, Devices and Applications)
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Review

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28 pages, 7534 KiB  
Review
Recent Progress in Photodetectors: From Materials to Structures and Applications
by Tianjun Ma, Ning Xue, Abdul Muhammad, Gang Fang, Jinyao Yan, Rongkun Chen, Jianhai Sun and Xuguang Sun
Micromachines 2024, 15(10), 1249; https://doi.org/10.3390/mi15101249 - 11 Oct 2024
Cited by 9 | Viewed by 6831
Abstract
Photodetectors are critical components in a wide range of applications, from imaging and sensing to communications and environmental monitoring. Recent advancements in material science have led to the development of emerging photodetecting materials, such as perovskites, polymers, novel two-dimensional materials, and quantum dots, [...] Read more.
Photodetectors are critical components in a wide range of applications, from imaging and sensing to communications and environmental monitoring. Recent advancements in material science have led to the development of emerging photodetecting materials, such as perovskites, polymers, novel two-dimensional materials, and quantum dots, which offer unique optoelectronic properties and high tunability. This review presents a comprehensive overview of the synthesis methodologies for these cutting-edge materials, highlighting their potential to enhance photodetection performance. Additionally, we explore the design and fabrication of photodetectors with novel structures and physics, emphasizing devices that achieve high figure-of-merit parameters, such as enhanced sensitivity, fast response times, and broad spectral detection. Finally, we discuss the demonstration of new applications enabled by these advanced photodetectors, including flexible and wearable devices, next-generation imaging systems, and environmental sensing technologies. Through this review, we aim to provide insights into the current trends and future directions in the field of photodetection, guiding further research and development in this rapidly evolving area. Full article
(This article belongs to the Special Issue Advances in Photodetecting Materials, Devices and Applications)
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