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Special Issue "2D/3D Printed Sensors and Electronics"

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

Deadline for manuscript submissions: 16 August 2021.

Special Issue Editors

Prof. Dr. Francisco Molina-Lopez
E-Mail Website
Guest Editor
Department of Materials Engineering, KU Leuven, 3001 Leuven, Belgium
Interests: wearables; flexible electronics; stretchable electronics; printed electronics; energy harvesters; thermoelectrics; supercapacitors
Dr. Almudena Rivadeneyra
E-Mail Website
Guest Editor
Pervasive Electronics Advanced Research Laboratory (PEARL), Department of Electronics and Computer Technology, University of Granada,Granada, Spain
Interests: sensors; electrical characterization; nanoelectronics; printed electronics, energy harvesting; energy conversion; flexible electronics; wearable electronics; biomedical sensor applications; RFID technology
Special Issues and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to announce the Special Issue of Sensors entitled "2D/3D Printed Sensors and Electronics". In this Special Issue, we want to collect a number of contributions to explore novel materials, techniques, and applications related to 2D/3D printed electronics. A non-comprehensive list of possible topics includes synthesis and characterization of 0D to 3D printable materials for sensing and actuating applications, fabrication technologies for printed sensors and electronic devices, and innovative applications of 2D/3D printed electronics.

In this Special Issue of Sensors, we invite authors to submit original communications, articles, and reviews on sensing devices and systems where 2D/3D printing techniques are involved. We are looking forward to your contributions and fruitful discussions.


Prof. Dr. Francisco Molina Lopez
Dr. Almudena Rivadeneyra
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 papers will be 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. Sensors 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 2200 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

  • 3D printing
  • Inkjet printing
  • Screen printing
  • Roll-to-roll techniques
  • Spray deposition
  • Laser scribing
  • Sensors
  • Actuators
  • Energy harvesters
  • Supercapacitors

Published Papers (4 papers)

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Research

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Open AccessArticle
Development of Soft sEMG Sensing Structures Using 3D-Printing Technologies
Sensors 2020, 20(15), 4292; https://doi.org/10.3390/s20154292 - 31 Jul 2020
Cited by 1 | Viewed by 1151
Abstract
3D printing of soft EMG sensing structures enables the creation of personalized sensing structures that can be potentially integrated in prosthetic, assistive and other devices. We developed and characterized flexible carbon-black doped TPU-based sEMG sensing structures. The structures are directly 3D-printed without the [...] Read more.
3D printing of soft EMG sensing structures enables the creation of personalized sensing structures that can be potentially integrated in prosthetic, assistive and other devices. We developed and characterized flexible carbon-black doped TPU-based sEMG sensing structures. The structures are directly 3D-printed without the need for an additional post-processing step using a low-cost, consumer grade multi-material FDM printer. A comparison between the gold standard Ag/AgCl gel electrodes and the 3D-printed EMG electrodes with a comparable contact area shows that there is no significant difference in the EMG signals’ amplitude. The sensors are capable of distinguishing a variable level of muscle activity of the biceps brachii. Furthermore, as a proof of principle, sEMG data of a 3D-printed 8-electrode band are analyzed using a patten recognition algorithm to recognize hand gestures. This work shows that 3D-printed sEMG electrodes have great potential in practical applications. Full article
(This article belongs to the Special Issue 2D/3D Printed Sensors and Electronics)
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Open AccessArticle
Design and Development of a Fully Printed Accelerometer with a Carbon Paste-Based Strain Gauge
Sensors 2020, 20(12), 3395; https://doi.org/10.3390/s20123395 - 16 Jun 2020
Cited by 3 | Viewed by 909
Abstract
In this paper, we present a fully printed accelerometer with a piezoresistive carbon paste-based strain gauge printed on its surface, which can be manufactured at low cost and with high efficiency. This accelerometer is composed of two parts: a sensor substrate made from [...] Read more.
In this paper, we present a fully printed accelerometer with a piezoresistive carbon paste-based strain gauge printed on its surface, which can be manufactured at low cost and with high efficiency. This accelerometer is composed of two parts: a sensor substrate made from high-temperature resin, which is printed by a 3D printer based on stereolithography apparatus (SLA), and a carbon paste-based strain gauge fabricated by screen-printing technology and by direct ink writing (DIW) technology for the purposes of comparison and optimization. First, the structural design, theoretical analysis, simulation analysis of the accelerometer, and analyses of the conductive mechanism and the piezoresistive mechanism of the carbon paste-based strain gauge were carried out. Then the proposed accelerometer was fabricated by a combination of different printing technologies and the curing conditions of the carbon paste were investigated. After that, the accelerometers with the screen-printed strain gauge and DIW strain gauge were characterized. The results show that the printing precision of the screen-printing process on the sensor substrate is higher than the DIW process, and both accelerometers can perform acceleration measurement. Also, this kind of accelerometer can be used in the field of measuring body motion. All these findings prove that 3D printing technology is a significant method for sensor fabrication and verification. Full article
(This article belongs to the Special Issue 2D/3D Printed Sensors and Electronics)
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Review

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Open AccessReview
A Review on Humidity, Temperature and Strain Printed Sensors—Current Trends and Future Perspectives
Sensors 2021, 21(3), 739; https://doi.org/10.3390/s21030739 - 22 Jan 2021
Viewed by 717
Abstract
Printing technologies have been attracting increasing interest in the manufacture of electronic devices and sensors. They offer a unique set of advantages such as additive material deposition and low to no material waste, digitally-controlled design and printing, elimination of multiple steps for device [...] Read more.
Printing technologies have been attracting increasing interest in the manufacture of electronic devices and sensors. They offer a unique set of advantages such as additive material deposition and low to no material waste, digitally-controlled design and printing, elimination of multiple steps for device manufacturing, wide material compatibility and large scale production to name but a few. Some of the most popular and interesting sensors are relative humidity, temperature and strain sensors. In that regard, this review analyzes the utilization and involvement of printing technologies for full or partial sensor manufacturing; production methods, material selection, sensing mechanisms and performance comparison are presented for each category, while grouping of sensor sub-categories is performed in all applicable cases. A key aim of this review is to provide a reference for sensor designers regarding all the aforementioned parameters, by highlighting strengths and weaknesses for different approaches in printed humidity, temperature and strain sensor manufacturing with printing technologies. Full article
(This article belongs to the Special Issue 2D/3D Printed Sensors and Electronics)
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Other

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Open AccessLetter
Optimization of Cost-Effective and Reproducible Flexible Humidity Sensors Based on Metal-Organic Frameworks
Sensors 2020, 20(23), 6981; https://doi.org/10.3390/s20236981 - 07 Dec 2020
Viewed by 600
Abstract
In this letter, we present the extension of a previous work on a cost-effective method for fabricating highly sensitive humidity sensors on flexible substrates with a reversible response, allowing precise monitoring of the humidity threshold. In that work we demonstrated the use of [...] Read more.
In this letter, we present the extension of a previous work on a cost-effective method for fabricating highly sensitive humidity sensors on flexible substrates with a reversible response, allowing precise monitoring of the humidity threshold. In that work we demonstrated the use of three-dimensional metal-organic framework (MOF) film deposition based on the perylene-3,4,9,10-tetracarboxylate linker, potassium as metallic center and the interspacing of silver interdigitated electrodes (IDEs) as humidity sensors. In this work, we study one of the most important issues in efficient and reproducible mass production, which is to optimize the most important processes’ parameters in their fabrication, such as controlling the thickness of the sensor’s layers. We demonstrate this method not only allows for the creation of humidity sensors, but it also is possible to change the humidity value that changes the actuator state. Full article
(This article belongs to the Special Issue 2D/3D Printed Sensors and Electronics)
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