The Future of MEMS-Based Miniaturized Detectors for Emerging Technologies

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

Deadline for manuscript submissions: closed (31 May 2020) | Viewed by 4462

Special Issue Editors


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Guest Editor
Spin & Photon Application (SPA) Lab, Institute of Microstructure Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
Interests: microscale NMR detectors; lab on a chip (LOC); magnetic microsystems

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Guest Editor
Department of Electrical and Electronics Engineering, Antalya Bilim University, Antalya 07190, Turkey
Interests: MEMS-based energy harvesting; biomedical sensors; MEMS sensors for wearable technologies; nanostructured materials for sensors and energy applications

Special Issue Information

Dear Colleagues,

The field of microelectromechanical systems (MEMS) symbolically started with the quest for Richard Feynman’s 1000$ prize offered to “the first who makes an operating electric motor [...] only 1/64 inch cube”, during a meeting of the American Physical Society in 1959. In order to make Feynman’s vision come true, the field has heavily relied over the years on the already established technology infrastructure for integrated circuits (IC’s). While the IC technology has been rather rigid in terms of materials and processes, the MEMS field has allowed much more room to play, incorporating a wide range of new materials such as glass, polymers, and ceramics in addition to traditional silicon. This rather “liberal” approach and the flexibility in materials and processes invited for useful integration of MEMS structures with electronic, optical, microfluidic, and biological networks, which has been translated into a plethora of sensing applications.

As of today, the field of miniaturized MEMS detectors is a rather established one. Small size and wafer scale fabrication have decreased unit device costs, contributing to the accessibility to and ubiquity of these devices. Some categories have made the leap towards being strongly commercialized and thus becoming part of our lives: MEMS microphones or gyroscopes in smartphones, accelerometers and pressure sensors in vehicles.

In this Special Issue, we aim at addressing the question “What is next in the field of miniaturized MEMS detectors?” We are inviting contributions as research articles, comments, and reviews addressing, but not limited to, the following topics:

  • The development of the next generation of superior MEMS detectors in terms of sensitivity, size, low operating power, biocompatibility, and reliability;
  • The future role of miniaturized MEMS detectors in the context of emerging technologies, i.e., in the era of the Internet of Things, virtual reality, and artificial intelligence;
  • Miniaturized MEMS detectors opening the way for correlative characterization applications, i.e., simultaneously acquiring spatial- and time-resolved data of an individual sample by performing previously uncorrelated measurements in order to provide a deeper insight into the structure and processes of a sample than what is possible using the individual measurement methods separately.

Dr. Vlad Badilita
Dr. Mustafa Ilker Beyaz
Guest Editors

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Keywords

  • MEMS detectors for IoT
  • Virtual reality
  • Artificial intelligence
  • Biomedical sensors
  • MEMS sensors for wearable and implantable devices
  • Correlative characterization
  • Ultralow power sensors
  • Sensor reliability

Published Papers (1 paper)

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Review

32 pages, 9339 KiB  
Review
Field Emission Cathodes to Form an Electron Beam Prepared from Carbon Nanotube Suspensions
by Karolina Urszula Laszczyk
Micromachines 2020, 11(3), 260; https://doi.org/10.3390/mi11030260 - 29 Feb 2020
Cited by 13 | Viewed by 4144
Abstract
In the first decade of our century, carbon nanotubes (CNTs) became a wonderful emitting material for field-emission (FE) of electrons. The carbon nanotube field-emission (CNT-FE) cathodes showed the possibility of low threshold voltage, therefore low power operation, together with a long lifetime, high [...] Read more.
In the first decade of our century, carbon nanotubes (CNTs) became a wonderful emitting material for field-emission (FE) of electrons. The carbon nanotube field-emission (CNT-FE) cathodes showed the possibility of low threshold voltage, therefore low power operation, together with a long lifetime, high brightness, and coherent beams of electrons. Thanks to this, CNT-FE cathodes have come ahead of increasing demand for novel self-sustaining and miniaturized devices performing as X-ray tubes, X-ray spectrometers, and electron microscopes, which possess low weight and might work without the need of the specialized equipped room, e.g., in a harsh environment and inaccessible-so-far areas. In this review, the author discusses the current state of CNT-FE cathode research using CNT suspensions. Included in this review are the basics of cathode operation, an evaluation, and fabrication techniques. The cathodes are compared based on performance and correlated issues. The author includes the advancement in field-emission enhancement by postprocess treatments, incorporation of fillers, and the use of film coatings with lower work functions than that of CNTs. Each approach is discussed in the context of the CNT-FE cathode operating factors. Finally, we discuss the issues and perspectives of the CNT-FE cathode research and development. Full article
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