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Open AccessArticle

Laser-Fabricated Reduced Graphene Oxide Memristors

Pervasive Electronics Advanced Research Laboratory, University of Granada, 18071 Granada, Spain
Department of Electronics and Computer Technology & Center of Research in Telecommunications and Information Technologies, University of Granada, 18071 Granada, Spain
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Kanagawa 252-5210, Japan
Biochemistry and Electronics as Sensing Technologies Group, University of Granada, 18071 Granada, Spain
Author to whom correspondence should be addressed.
Nanomaterials 2019, 9(6), 897;
Received: 8 April 2019 / Revised: 15 June 2019 / Accepted: 17 June 2019 / Published: 19 June 2019
(This article belongs to the Special Issue Laser Induced Nanomaterials)
Finding an inexpensive and scalable method for the mass production of memristors will be one of the key aspects for their implementation in end-user computing applications. Herein, we report pioneering research on the fabrication of laser-lithographed graphene oxide memristors. The devices have been surface-fabricated through a graphene oxide coating on a polyethylene terephthalate substrate followed by a localized laser-assisted photo-thermal partial reduction. When the laser fluence is appropriately tuned during the fabrication process, the devices present a characteristic pinched closed-loop in the current-voltage relation revealing the unique fingerprint of the memristive hysteresis. Combined structural and electrical experiments have been conducted to characterize the raw material and the devices that aim to establish a path for optimization. Electrical measurements have demonstrated a clear distinction between the resistive states, as well as stable memory performance, indicating the potential of laser-fabricated graphene oxide memristors in resistive switching applications. View Full-Text
Keywords: memristor; graphene oxide; laser-scribing; neuromorphic; flexible electronics memristor; graphene oxide; laser-scribing; neuromorphic; flexible electronics
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MDPI and ACS Style

Romero, F.J.; Toral-Lopez, A.; Ohata, A.; Morales, D.P.; Ruiz, F.G.; Godoy, A.; Rodriguez, N. Laser-Fabricated Reduced Graphene Oxide Memristors. Nanomaterials 2019, 9, 897.

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