Multifunctional-Nanomaterials-Based Semiconductor Devices and Sensors

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "D1: Semiconductor Devices".

Deadline for manuscript submissions: closed (31 January 2024) | Viewed by 2319

Special Issue Editors


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Guest Editor
Faculty of Engineering, Technology and Built Environment, UCSI University, Kuala Lumpur 56000, Malaysia
Interests: organic sensors; transistors; solar cells; thermoelectric cells; flexible devices; high gravity deposition

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Guest Editor
Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi 23640, Pakistan
Interests: electrophysical properties of organic semiconductors; organic semiconductor devices (sensors, solar cells); materials processing at high gravity conditions (thin films); utilization of renewable energy

Special Issue Information

Dear Colleagues,

In recent years, multifunctional-nanomaterials-based semiconducting devices and sensors have become one of the most researched topics. Due to changes in conductivity, semiconductor materials are widely employed in solar cells, thermoelectric materials, diodes, electrochemical cells, and sensors, among other applications. In addition to being a crucial material as an active layer, they also exhibit remarkable outcomes as substrates and supporting layers. Semiconductor-based devices respond differently to humidity, temperature, light, gas, etc. Therefore, the same device may perform many functions simultaneously, which not only reduces their size but also minimizes manufacturing costs. These devices can be manufactured using a variety of techniques, such as screen printing, spin coating, spray coating, rubbing-in, different gravity deposition, thermal deposition, chemical vapor deposition, etc., which provides a vast space for scientific research not only at the industrial level, but also at the domestic and academic levels. Generally speaking, semiconductor devices are more dependable, stable, affordable, and accessible. Due to the great sensitivity of their reactions, these devices are not only utilized as sensors, but also as one of the primary materials to meet the rising energy demands. Researchers are forced to employ free natural resources such as the sun to generate energy through solar cells and thermoelectric generators, which drives innovation in nanomaterials-based multi-functional semiconductor devices. Consequently, this Special Issue aims to feature research papers, brief communications, and review articles that focus on novel methodological developments in semiconductor-based devices and sensor applications not only in engineering and medical industries, but also in research development and domestic-level applications.

Dr. Noshin Fatima
Prof. Dr. Khasan S. Karimov
Guest Editors

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Keywords

  • morphological and electrical analysis
  • nano materials
  • p–n junctions
  • semiconductor devices
  • simulation (theory)

Published Papers (2 papers)

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Research

15 pages, 5398 KiB  
Article
Fabrication and Characterization of Monolithic Integrated Three-Axis Acceleration/Pressure/Magnetic Field Sensors
by Ying Wang, Yu Xiao, Xiaofeng Zhao and Dianzhong Wen
Micromachines 2024, 15(3), 412; https://doi.org/10.3390/mi15030412 - 19 Mar 2024
Viewed by 719
Abstract
In order to realize the measurement of three-axis acceleration, pressure, and magnetic field, monolithic integrated three-axis acceleration/pressure/magnetic field sensors are proposed in this paper. The proposed sensors were constructed with an acceleration sensor consisting of four L-shaped double beams, two masses, middle double-beams, [...] Read more.
In order to realize the measurement of three-axis acceleration, pressure, and magnetic field, monolithic integrated three-axis acceleration/pressure/magnetic field sensors are proposed in this paper. The proposed sensors were constructed with an acceleration sensor consisting of four L-shaped double beams, two masses, middle double-beams, and twelve piezoresistors, a pressure sensor made of a square silicon membrane, and four piezoresistors, as well as a magnetic field sensor composed of five Hall elements. COMSOL software and TCAD-Atlas software were used to simulate characteristics of integrated sensors, and analyze the working principles of the sensors in measuring acceleration, pressure, and magnetic field. The integrated sensors were fabricated by using micro-electro-mechanical systems (MEMS) technology and packaged by using inner lead bonding technology. When applying a working voltage of 5 V at room temperature, it is possible for the proposed sensors to achieve the acceleration sensitivities of 3.58 mV/g, 2.68 mV/g, and 9.45 mV/g along the x-axis, y-axis, and z-axis (through an amplifying circuit), and the sensitivities towards pressure and magnetic field are 0.28 mV/kPa and 22.44 mV/T, respectively. It is shown that the proposed sensors can measure three-axis acceleration, pressure, and magnetic field. Full article
(This article belongs to the Special Issue Multifunctional-Nanomaterials-Based Semiconductor Devices and Sensors)
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12 pages, 2778 KiB  
Article
Fabrication and Investigation of Graphite-Flake-Composite-Based Non-Invasive Flex Multi-Functional Force, Acceleration, and Thermal Sensor
by Noshin Fatima, Khasan S. Karimov, Farah Adilah Jamaludin and Zubair Ahmad
Micromachines 2023, 14(7), 1358; https://doi.org/10.3390/mi14071358 - 30 Jun 2023
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Abstract
This work examines the physics of a non-invasive multi-functional elastic thin-film graphite flake–isoprene sulfone composite sensor. The strain design and electrical characterization of the stretching force, acceleration, and temperature were performed. The rub-in technique was used to fabricate graphite flakes and isoprene sulfone [...] Read more.
This work examines the physics of a non-invasive multi-functional elastic thin-film graphite flake–isoprene sulfone composite sensor. The strain design and electrical characterization of the stretching force, acceleration, and temperature were performed. The rub-in technique was used to fabricate graphite flakes and isoprene sulfone into sensors, which were then analyzed for their morphology using methods such as SEM, AFM, X-ray diffraction, and Fourier transform infrared spectroscopy to examine the device’s surface and structure. Sensor impedance was measured from DC to 200 kHz at up to 20 gf, 20 m/s2, and 26–60 °C. Sensor resistance and impedance to stretching force and acceleration at DC and 200 Hz rose 2.4- and 2.6-fold and 2.01- and 2.06-fold, respectively. Temperature-measuring devices demonstrated 2.65- and 2.8-fold decreases in resistance and impedance at DC and 200 kHz, respectively. First, altering the graphite flake composite particle spacing may modify electronic parameters in the suggested multi-functional sensors under stress and acceleration. Second, the temperature impacts particle and isoprene sulfone properties. Due to their fabrication using an inexpensive deposition technique, these devices are environmentally friendly, are simple to build, and may be used in university research in international poverty-line nations. In scientific laboratories, such devices can be used to teach students how various materials respond to varying environmental circumstances. They may also monitor individuals undergoing physiotherapy and vibrating surfaces in a controlled setting to prevent public health risks. Full article
(This article belongs to the Special Issue Multifunctional-Nanomaterials-Based Semiconductor Devices and Sensors)
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