Issue 20, 2019

Wearable solid-state capacitors based on two-dimensional material all-textile heterostructures

Abstract

Two-dimensional (2D) materials are a rapidly growing area of interest for wearable electronics, due to their flexible and unique electrical properties. All-textile-based wearable electronic components are key to enable future wearable electronics. Single component electrical elements have been demonstrated; however heterostructure-based assemblies, combining electrically conductive and dielectric textiles such as all-textile capacitors are currently missing. Here we demonstrate a superhydrophobic conducting fabric with a sheet resistance Rs ∼ 2.16 kΩ □−1, and a pinhole-free dielectric fabric with a relative permittivity εr ∼ 2.35 enabled by graphene and hexagonal boron nitride inks, respectively. The different fabrics are then integrated to engineer the first example of an all-textile-based capacitive heterostructure with an effective capacitance C ∼ 26 pF cm−2 and a flexibility of ∼1 cm bending radius. The capacitor sustains 20 cycles of repeated washing and more than 100 cycles of repeated bending. Finally, an AC low-pass filter with a cut-off frequency of ∼15 kHz is integrated by combining the conductive polyester and the capacitor. These results pave the way toward all-textile vertically integrated electronic devices.

Graphical abstract: Wearable solid-state capacitors based on two-dimensional material all-textile heterostructures

Supplementary files

Article information

Article type
Paper
Submitted
15 Қаң. 2019
Accepted
16 Сәу. 2019
First published
18 Сәу. 2019

Nanoscale, 2019,11, 9912-9919

Wearable solid-state capacitors based on two-dimensional material all-textile heterostructures

S. Qiang, T. Carey, A. Arbab, W. Song, C. Wang and F. Torrisi, Nanoscale, 2019, 11, 9912 DOI: 10.1039/C9NR00463G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements