Akiko Ohata

Prof. Akiko Ohata


Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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19 June 2019 in Nanomaterials
Verified
Journal Article
Open access
PDF file
Francisco J RomeroFrancisco J Romero
Francisco J Romero
ATAlejandro Toral
Alejandro Toral
AOAkiko Ohata
Akiko Ohata
Diego P. MoralesDiego P. Morales
Diego P. Morales
FRFrancisco G. Ruiz
Francisco G. Ruiz
Noel RodriguezNoel Rodriguez
Noel Rodriguez
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.