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Nanomaterials
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Advanced Nanomaterials for Flexible and Wearable Electronics
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Advanced Nanomaterials for Flexible and Wearable Electronics

A special issue of Nanomaterials (ISSN 2079-4991).

Deadline for manuscript submissions: 10 July 2024 | Viewed by 2054

Special Issue Editors

Dr. Hui Li

E-Mail Website
Guest Editor
College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, China
Interests: flexible electronics; robotics; microstructure manufacturing; 3D printing
Dr. Yuan Jin

E-Mail Website
Guest Editor
Faculty of Mechanical Engineering & Mechanics, Ningbo University, Ningbo, China
Interests: 3D printing; flexible electronics

Special Issue Information

Dear Colleagues,

In recent years, flexible and wearable electronics integrated with various sensors, including strain sensors, tactile sensors and temperature sensors, have attracted widespread attention and created many opportunities in future applications, such as intelligent robots, electronic skin, human–machine interactions and healthcare monitoring, and profoundly changed human lifestyles. To achieve the soft state, flexible electronics requires novel approaches in material design, including strain minimization via the nanoscale processing of established materials and synthesis of new functional nanomaterials. A hybrid of top-down-processed nanomaterials and bottom-up-synthesized nanomaterials can create further multi-functionalities without sacrificing the mechanical deformability. These nanomaterials exhibit unique electrical, optical and electrochemical properties. Therefore, the development of nanomaterials is of vital importance to improve the performance and application field of flexible and wearable electronics.

The current Special Issue aims to provide an overview of recent developments in nanomaterials for flexible and wearable electronics. This includes, but is not limited to, the exploitation of new materials, structure and morphology designs and the fabrication for flexible electronics. Both original research articles and reviews are welcome. The Special Issue aims to promote the performance and expand the applications of flexible and wearable electronics.

We look forward to receiving your contributions.

Dr. Hui Li
Dr. Yuan Jin
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 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 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. Nanomaterials 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 2900 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
  • wearable electronics
  • sensors
  • nanomaterials

Published Papers (2 papers)

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Research

16 pages, 4632 KiB  
Article
Preparation of Low-Temperature Solution-Processed High-κ Gate Dielectrics Using Organic–Inorganic TiO2 Hybrid Nanoparticles
by Hong Nhung Le, Rixuan Wang, Benliang Hou, Sehyun Kim and Juyoung Kim
Nanomaterials 2024, 14(6), 488; https://doi.org/10.3390/nano14060488 - 8 Mar 2024
Viewed by 814
Abstract
Organic–inorganic hybrid dielectric nanomaterials are vital for OTFT applications due to their unique combination of organic dielectric and inorganic properties. Despite the challenges in preparing stable titania (TiO2) nanoparticles, we successfully synthesized colloidally stable organic–inorganic (O-I) TiO2 hybrid nanoparticles using [...] Read more.
Organic–inorganic hybrid dielectric nanomaterials are vital for OTFT applications due to their unique combination of organic dielectric and inorganic properties. Despite the challenges in preparing stable titania (TiO2) nanoparticles, we successfully synthesized colloidally stable organic–inorganic (O-I) TiO2 hybrid nanoparticles using an amphiphilic polymer as a stabilizer through a low-temperature sol–gel process. The resulting O-I TiO2 hybrid sols exhibited long-term stability and formed a high-quality dielectric layer with a high dielectric constant (κ) and minimal leakage current density. We also addressed the effect of the ethylene oxide chain within the hydrophilic segment of the amphiphilic polymer on the dielectric properties of the coating film derived from O-I TiO2 hybrid sols. Using the O-I TiO2 hybrid dielectric layer with excellent insulating properties enhanced the electrical performance of the gate dielectrics, including superior field-effect mobility and stable operation in OTFT devices. We believe that this study provides a reliable method for the preparation of O-I hybrid TiO2 dielectric materials designed to enhance the operational stability and electrical performance of OTFTs. Full article
(This article belongs to the Special Issue Advanced Nanomaterials for Flexible and Wearable Electronics)
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15 pages, 7963 KiB  
Article
Inkjet-Printed Dielectric Layer for the Enhancement of Electrowetting Display Devices
by Hongwei Jiang, Rongzhen Qian, Tinghong Yang, Yuanyuan Guo, Dong Yuan, Biao Tang, Rui Zhou, Hui Li and Guofu Zhou
Nanomaterials 2024, 14(4), 347; https://doi.org/10.3390/nano14040347 - 12 Feb 2024
Viewed by 940
Abstract
Electrowetting with a dielectric layer is commonly preferred in practical applications. However, its potential is often limited by factors like the properties of the dielectric layer and its breakdown, along with the complexity of the deposition method. Fortunately, advancements in 3D inkjet printing [...] Read more.
Electrowetting with a dielectric layer is commonly preferred in practical applications. However, its potential is often limited by factors like the properties of the dielectric layer and its breakdown, along with the complexity of the deposition method. Fortunately, advancements in 3D inkjet printing offer a more adaptable solution for making patterned functional layers. In this study, we used a negative photoresist (HN-1901) to create a new dielectric layer for an electrowetting display on a 3-inch ITO glass using a Dimatix DMP-2580 inkjet printer. The resulting devices performed better due to their enhanced resistance to dielectric breakdown. We meticulously investigated the physical properties of the photoresist material and printer settings to achieve optimal printing. We also controlled the uniformity of the dielectric layer by adjusting ink drop spacing. Compared to traditional electrowetting display devices, those with inkjet-printed dielectric layers showed significantly fewer defects like bubbles and electrode corrosion. They maintained an outstanding response time and breakdown resistance, operating at an open voltage of 20 V. Remarkably, these devices achieved faster response times of ton 22.3 ms and toff 14.2 ms, surpassing the performance of the standard device. Full article
(This article belongs to the Special Issue Advanced Nanomaterials for Flexible and Wearable Electronics)
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