Electrically Controlled Nano and Micro Actuation in Memristive Switching Devices with On-Chip Gas Encapsulation.
Authors
Astier, Hippolyte PAG
Mertens, Jan
Yoon, Duhee
Zhao, Zhuang
Kuhn, Alexander
Publication Date
2018-08Journal Title
Small (Weinheim an der Bergstrasse, Germany)
ISSN
1613-6810
Publisher
Wiley-Blackwell
Volume
14
Issue
34
Pages
e1801599
Language
eng
Type
Article
Physical Medium
Print-Electronic
Metadata
Show full item recordCitation
Kos, D., Astier, H. P., Martino, G. D., Mertens, J., Ohadi, H., De Fazio, D., Yoon, D., et al. (2018). Electrically Controlled Nano and Micro Actuation in Memristive Switching Devices with On-Chip Gas Encapsulation.. Small (Weinheim an der Bergstrasse, Germany), 14 (34), e1801599. https://doi.org/10.1002/smll.201801599
Abstract
Nanoactuators are a key component for developing nanomachinery. Here, an electrically-driven device yielding actuation stresses exceeding 1 MPa with integrated optical readout is demonstrated. Electrolyte films of 10nm-thick Al2O3 are sandwiched between graphene and Au electrodes that allow reversible room-temperature solid-state redox 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 1µm, which can be dynamically tracked by plasmonic rulers. Unlike in standard memristors where the memristive redox reaction occurs in single or few conductive filaments, the mechanical deformation forces the constant creation of new filaments over the whole area of the inflated film. The resulting on-off resistance ratios are exceptionally high, reaching 10^8 in some cycles. The synchronisation of nanoactuation and memristive switching in these devices is compatible with large-scale fabrication and has potential for precise and electrically monitored actuation technology.
Sponsorship
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
Funder references
EPSRC (1648373)
EPSRC (EP/G060649/1)
EPSRC (EP/L027151/1)
EPSRC (EP/G037221/1)
EPSRC (EP/K01711X/1)
EPSRC (EP/K017144/1)
EPSRC (via University of Manchester) (R119256)
EPSRC (EP/M507799/1)
EPSRC (EP/L016087/1)
European Research Council (320503)
EC FP7 ERC (319277)
European Commission Horizon 2020 (H2020) ERC (778616)
Identifiers
External DOI: https://doi.org/10.1002/smll.201801599
This record's URL: https://www.repository.cam.ac.uk/handle/1810/282894
Rights
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