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Fully inkjet-printed two-dimensional material field-effect heterojunctions for wearable and textile electronics.

Published version
Peer-reviewed

Type

Article

Change log

Authors

Carey, Tian 
Cacovich, Stefania 
Ren, Jiesheng 
Mansouri, Aida 

Abstract

Fully printed wearable electronics based on two-dimensional (2D) material heterojunction structures also known as heterostructures, such as field-effect transistors, require robust and reproducible printed multi-layer stacks consisting of active channel, dielectric and conductive contact layers. Solution processing of graphite and other layered materials provides low-cost inks enabling printed electronic devices, for example by inkjet printing. However, the limited quality of the 2D-material inks, the complexity of the layered arrangement, and the lack of a dielectric 2D-material ink able to operate at room temperature, under strain and after several washing cycles has impeded the fabrication of electronic devices on textile with fully printed 2D heterostructures. Here we demonstrate fully inkjet-printed 2D-material active heterostructures with graphene and hexagonal-boron nitride (h-BN) inks, and use them to fabricate all inkjet-printed flexible and washable field-effect transistors on textile, reaching a field-effect mobility of ~91 cm2 V-1 s-1, at low voltage (<5 V). This enables fully inkjet-printed electronic circuits, such as reprogrammable volatile memory cells, complementary inverters and OR logic gates.

Description

Keywords

0912 Materials Engineering

Journal Title

Nat Commun

Conference Name

Journal ISSN

2041-1723
2041-1723

Volume Title

8

Publisher

Springer Science and Business Media LLC
Sponsorship
European Research Council (259619)
Engineering and Physical Sciences Research Council (EP/P02534X/1)
Engineering and Physical Sciences Research Council (EP/L016087/1)
European Research Council (340538)
European Commission Horizon 2020 (H2020) Future and Emerging Technologies (FET) (696656)
European Commission Horizon 2020 (H2020) Research Infrastructures (RI) (685758)