Heterostructures formed through abraded van der Waals materials

Darren Nutting, Jorlandio F. Felix, Evan Tillotson, Dong-Wook Shin, Adolfo Sanctis, Hong Chang, Nick Cole, Saverio Russo, Adam Woodgate, Ioannis Leontis, Henry A. Fernández, Monica F. Craciun, Sarah J. Haigh and Freddie Withers ()
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Darren Nutting: University of Exeter
Jorlandio F. Felix: Instituto de Física, Núcleo de Física Aplicada, Universidade de Brasília—UNB
Evan Tillotson: University of Manchester
Dong-Wook Shin: University of Cambridge
Adolfo Sanctis: University of Exeter
Hong Chang: University of Exeter
Nick Cole: University of Exeter
Saverio Russo: University of Exeter
Adam Woodgate: University of Exeter
Ioannis Leontis: University of Exeter
Henry A. Fernández: University of Exeter
Monica F. Craciun: University of Exeter
Sarah J. Haigh: University of Manchester
Freddie Withers: University of Exeter

Nature Communications, 2020, vol. 11, issue 1, 1-10

Abstract: Abstract To fully exploit van der Waals materials and their vertically stacked heterostructures, new mass-scalable production routes which are low cost but preserve the high electronic and optical quality of the single crystals are required. Here, we demonstrate an approach to realise a variety of functional heterostructures based on van der Waals nanocrystal films produced through the mechanical abrasion of bulk powders. We find significant performance enhancements in abraded heterostructures compared to those fabricated through inkjet printing of nanocrystal dispersions. To highlight the simplicity, applicability and scalability of the device fabrication, we demonstrate a multitude of different functional heterostructures such as resistors, capacitors and photovoltaics. We also demonstrate the creation of energy harvesting devices, such as large area catalytically active coatings for the hydrogen evolution reaction and enhanced triboelectric nanogenerator performance in multilayer films. The ease of device production makes this a promising technological route for up-scalable films and heterostructures.

Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-16717-4

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DOI: 10.1038/s41467-020-16717-4

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