Photo-Curable Stretchable High-k Polymer/TiO2 Nanosheet Hybrid Dielectrics for Field-Effect Transistors
Journal
Small Science
ISSN
2688-4046
2688-4046
Date Issued
2024-09-10
Author(s)
DOI
10.1002/smsc.202400197
Abstract
Elastomeric polymer materials are of interest due to their stretchability, low-temperature processing, and scalability. In addition, the incorporation of 2D materials can further enhance the dielectric properties and capacitance of elastic polymer materials, thereby reducing the driving voltage and energy consumption. In this study, titanium dioxide (TiO2) nanosheets are cross-linked with nitrile butadiene rubber using thiol-ene click chemistry, which leads to the preparation of nanocomposite dielectric films with stretchability and high dielectric constant. Furthermore, by controlling the doping amount of the nanosheets, it is observed that the capacitance of the nanocomposite films increases from 25.61 to 684.67 nF cm−2, and the dielectric constant increases from 14.96 to 161.98. Finally, the stretchable nanocomposite films exhibit good insulating properties even at 50% strain. In this study, insight is provided into the potential of in situ cross-linking between elastic polymer materials and 2D materials to produce high-k dielectric materials with both stretchability and high insulating properties.
Subjects
dielectrics
nanocomposites
stretchable field-effect transistor
TiO2 nanosheets
Publisher
Wiley
Type
journal article