Type

Journal Article

Authors

David Joseph Finn
Toby Hallam
Jonathan Coleman

Subjects

Physics

Topics
resistance fabrication devices heterostructures impedance spectroscopy capacitors dielectric h bn nanosheet networks conductive graphene

All-printed capacitors from graphene-BN-graphene nanosheet heterostructures (2016)

Abstract This work aims to develop methodologies to print pinhole-free, vertically stacked heterostructures by sequential deposition of conductive graphene and dielectric h-BN nanosheet networks. We achieve this using a combination of inkjet printing and spray-coating to fabricate dielectric capacitors in a stacked graphene/BN/graphene arrangement. Impedance spectroscopy shows such heterostructures to act as series combinations of a capacitor and a resistor, with the expected dimensional dependence of the capacitance. The areal capacitance ranges from 0.24 to 1.1?nF/cm2 with an average series resistance of ?120?k?. The sprayed BN dielectrics are pinhole-free for thicknesses above 1.65??m. This development paves the way toward fabrication of all-printed, vertically integrated, multilayer devices.
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Full list of authors on original publication

David Joseph Finn, Toby Hallam, Jonathan Coleman

Experts in our system

1
Toby Hallam
Trinity College Dublin
Total Publications: 20
 
2
Jonathan Coleman
Trinity College Dublin
Total Publications: 217