Electrically Controlled Nano and Micro Actuation in Memristive Switching Devices with On-Chip Gas Encapsulation.


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Type
Article
Change log
Authors
Astier, Hippolyte PAG 
Martino, Giuliana Di  ORCID logo  https://orcid.org/0000-0001-5766-8384
Mertens, Jan 
Abstract

Nanoactuators are a key component for developing nanomachinery. Here, an electrically driven device yielding actuation stresses exceeding 1 MPa withintegrated optical readout is demonstrated. 10 nm thick Al2 O3 electrolyte films are sandwiched between graphene and Au electrodes. These allow reversible room-temperature solid-state redox reactions, producing Al metal and O2 gas in a memristive-type switching device. The resulting high-pressure oxygen micro-fuel reservoirs are encapsulated under the graphene, swelling to heights of up to 1 µm, which can be dynamically tracked by plasmonic rulers. Unlike standard memristors where the memristive redox reaction occurs in single or few conductive filaments, the mechanical deformation forces the creation of new filaments over the whole area of the inflated film. The resulting on-off resistance ratios reach 108 in some cycles. The synchronization of nanoactuation and memristive switching in these devices is compatible with large-scale fabrication and has potential for precise and electrically monitored actuation technology.

Description
Keywords
graphene, nanoactuation, nanoparticles, plasmonic coupling, resistive switching
Journal Title
Small
Conference Name
Journal ISSN
1613-6810
1613-6829
Volume Title
14
Publisher
Wiley
Sponsorship
EPSRC (1648373)
Engineering and Physical Sciences Research Council (EP/G060649/1)
Engineering and Physical Sciences Research Council (EP/L027151/1)
Engineering and Physical Sciences Research Council (EP/G037221/1)
Engineering and Physical Sciences Research Council (EP/K01711X/1)
Engineering and Physical Sciences Research Council (EP/K017144/1)
EPSRC (via University of Manchester) (R119256)
Engineering and Physical Sciences Research Council (EP/M507799/1)
Engineering and Physical Sciences Research Council (EP/L016087/1)
European Research Council (320503)
European Research Council (319277)
European Research Council (778616)
European Commission Horizon 2020 (H2020) Future and Emerging Technologies (FET) (785219)
We acknowledge financial support from EPSRC grant EP/G060649/1, EP/L027151/1, EP/G037221/1, EP/K01711X/1, EP/K017144/1, EP/N010345/1, EP/M507799/1, EP/L016087/1, EPSRC NanoDTC, and ERC grant LINASS 320503, Hetero2D, MineGrace, EU Graphene Flagship