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Light-controlled nanoscopic writing of electronic memories using the tip-enhanced bulk photovoltaic effect
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Luo, Zheng-Dong, Park, Dae-Sung, Yang, Ming-Min and Alexe, Marin (2019) Light-controlled nanoscopic writing of electronic memories using the tip-enhanced bulk photovoltaic effect. ACS Applied Materials & Interfaces, 11 (8). pp. 8276-8283. doi:10.1021/acsami.8b22638 ISSN 1944-8244.
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Official URL: https://doi.org/10.1021/acsami.8b22638
Abstract
The light control of nonvolatile nanoscale memories could represent a fundamental step toward novel optoelectronic devices with memory and logic functionalities. However, most of the proposed devices exhibit insufficient control in terms of the reversibility, data retention, photosensitivity, limited-photoactive area, and so forth. Here, in a proof-of-concept work, we demonstrate the use of the tip-enhanced bulk photovoltaic (BPV) effect to realize programmable nanoscopic writing of nonphotoactive electronic devices by light control. We show that electronic properties of solid-state memory devices can be reversibly and location-precisely manipulated in the nanoscale using the BPV effect in combination with the nanoscale contact connection, that is, atomic force microscopy (AFM) probe technique in this work. More than 105% reversible switching of tunneling electroresistance of ferroelectric tunnel junctions is exclusively achieved by light control. Using the same light-controlled AFM probe technique, we also present precise nanoscopic and multiple-state writing of LaAlO3/SrTiO3 two-dimensional electron gas (2DEG)-based field-effect transistors. The tip-enhanced BPV effect can offer a novel avenue for reversible and multistate light control of a wide range of electronic memory devices in the nanoscale and may lead to more sophisticated functionalities in optoelectronic applications.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
Journal or Publication Title: | ACS Applied Materials & Interfaces | ||||||||
Publisher: | American Chemical Society | ||||||||
ISSN: | 1944-8244 | ||||||||
Official Date: | 27 February 2019 | ||||||||
Dates: |
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Volume: | 11 | ||||||||
Number: | 8 | ||||||||
Page Range: | pp. 8276-8283 | ||||||||
DOI: | 10.1021/acsami.8b22638 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Copyright Holders: | © 2019 American Chemical Society | ||||||||
Date of first compliant deposit: | 5 February 2020 | ||||||||
Date of first compliant Open Access: | 5 February 2020 | ||||||||
Funder: | EPSRC |
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