Barium titanate-enhanced hexagonal boron nitride inks for printable high-performance dielectrics.


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Authors
Arbab, Adrees 
Fenech-Salerno, Benji  ORCID logo  https://orcid.org/0000-0002-0150-9672
Macpherson, Ryan 
Abstract

Printed electronics have been attracting significant interest for their potential to enable flexible and wearable electronic applications. Together with printable semiconductors, solution-processed dielectric inks are key in enabling low-power and high-performance printed electronics. In the quest for suitable dielectrics inks, two-dimensional materials such as hexagonal boron nitride (h-BN) have emerged in the form of printable dielectrics. In this work, we report barium titanate (BaTiO3) nanoparticles as an effective additive for inkjet-printable h-BN inks. The resulting inkjet printed BaTiO3/h-BN thin films reach a dielectric constant (εr) of ∼16 by adding 10% of BaTiO3nanoparticles (in their volume fraction to the exfoliated h-BN flakes) in water-based inks. This result enabled all-inkjet printed flexible capacitors withC ∼ 10.39 nF cm-2, paving the way to future low power, printed and flexible electronics.

Description
Keywords
barium titanate nanoparticle, dielectrics, hexagonal boron nitride, inkjet printing, printed electronics
Journal Title
Nanotechnology
Conference Name
Journal ISSN
0957-4484
1361-6528
Volume Title
33
Publisher
IOP Publishing
Sponsorship
Engineering and Physical Sciences Research Council (EP/P02534X/2, EP/R511547/1, EP/T005106/1)