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Micromachines
Special Issues
Flexible/Stretchable Electronics and Devices
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Flexible/Stretchable Electronics and Devices

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

Deadline for manuscript submissions: closed (25 August 2023) | Viewed by 4881

Special Issue Editor

Dr. Byungil Hwang

E-Mail Website
Guest Editor
School of Integrative Engineering, Chung-Ang University, Seoul 06974, Republic of Korea
Interests: sensor; biosensor; fiber sensor; e textile; conductive textile
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Recently, flexible/stretchable electronics attract a great deal of attention due to their potential application in various next-generation electronic devices (e.g., wearable health care systems, Internet of Things systems, energy-harvesting/storage devices). Electronic devices consist of various components, which require different strategies to make them be flexible or stretchable. The development of novel materials compatible with flexible/stretchable systems is one of the main research areas in flexible/stretchable electronic systems, focusing mostly on composites consisting of stretchable matrix and conducting fillers. Structural design to make rigid systems flexible or stretchable by geometry change is also considered a promising method for flexible/stretchable electronics. Although there have been many reports on material systems and structural design for flexible/stretchable systems, further studies are still required. Accordingly, this Special Issue seeks to showcase research papers and review articles that focus on the development of materials or systems for flexible/stretchable electronics. Readers will be provided with a comprehensive understanding and perspective on flexible/stretchable electronics.

Dr. Byungil Hwang
Guest Editor

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 submissions that pass pre-check are 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 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. Micromachines is an international peer-reviewed open access monthly 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 2600 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

  • flexible electronics
  • stretchable electronics
  • electrode
  • interconnect
  • device

Published Papers (2 papers)

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Research

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6 pages, 1475 KiB  
Article
Effect of the Blade-Coating Conditions on the Electrical and Optical Properties of Transparent Ag Nanowire Electrodes
by Hyungsub Yoon, Paolo Matteini and Byungil Hwang
Micromachines 2023, 14(1), 114; https://doi.org/10.3390/mi14010114 - 31 Dec 2022
Cited by 3 | Viewed by 1371
Abstract
Optimizing the coating conditions for a doctor blading system is important when seeking to improve the performance of Ag nanowire electrodes. In this study, the effect of the blading height and speed on the optical and electrical properties of Ag nanowire electrodes was [...] Read more.
Optimizing the coating conditions for a doctor blading system is important when seeking to improve the performance of Ag nanowire electrodes. In this study, the effect of the blading height and speed on the optical and electrical properties of Ag nanowire electrodes was investigated. Ag nanowires were first spread on a PET substrate using a doctor blade with differing heights at a fixed blading speed. An increase in the blading height resulted in the degradation of the optical transmittance and stronger haze due to the higher probability of Ag nanowire agglomeration arising from the greater wet thickness. When the blading speed was varied, the optical transmittance and haze were unaffected up until 20 mm/s, followed by minor degradation of the optical properties at blading speeds over 25 mm/s. The higher speeds hindered the spread of the Ag nanowire solution, which also increased the probability of Ag nanowire agglomeration. However, this degradation was less serious compared to that observed with a change in the blading height. Therefore, optimizing the blading height was confirmed to be the priority for the production of high-performance transparent Ag nanowire electrodes. Our study thus provides practical guidance for the fabrication of Ag nanowire electrodes using doctor blading systems. Full article
(This article belongs to the Special Issue Flexible/Stretchable Electronics and Devices)
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Other

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12 pages, 4055 KiB  
Perspective
Versatile Applications of Silver Nanowire-Based Electrodes and Their Impacts
by Chunghyeon Choi, Erik Schlenker, Heebo Ha, Jun Young Cheong and Byungil Hwang
Micromachines 2023, 14(3), 562; https://doi.org/10.3390/mi14030562 - 27 Feb 2023
Cited by 3 | Viewed by 2518
Abstract
Indium tin oxide (ITO) is currently the most widely used material for transparent electrodes; however, it has several drawbacks, including high cost, brittleness, and environmental concerns. Silver nanowires (AgNWs) are promising alternatives to ITO as materials for transparent electrodes owing to their high [...] Read more.
Indium tin oxide (ITO) is currently the most widely used material for transparent electrodes; however, it has several drawbacks, including high cost, brittleness, and environmental concerns. Silver nanowires (AgNWs) are promising alternatives to ITO as materials for transparent electrodes owing to their high electrical conductivity, transparency in the visible range of wavelengths, and flexibility. AgNWs are effective for various electronic device applications, such as touch panels, biosensors, and solar cells. However, the high synthesis cost of AgNWs and their poor stability to external chemical and mechanical damages are significant challenges that need to be addressed. In this review paper, we discuss the current state of research on AgNW transparent electrodes, including their synthesis, properties, and potential applications. Full article
(This article belongs to the Special Issue Flexible/Stretchable Electronics and Devices)
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