Surfactant molecules make liquid phase exfoliated graphene a switching element for resistive random access memory applications

  • Sheena S. Sukumaran
  • K. B. Jinesh
  • K. G. Gopchandran


Few-layer graphene sheets with less conductivity have been chemically exfoliated using dioctyl sulfosuccinate sodium salt as the surfactant. The resistive memory devices fabricated using these liquid-phase exfoliated graphene (LPEG) thin films exhibit reversible volatile memory characteristics. While single layer graphene is known for exhibiting volatile memory behaviour, LPEG opens up a chemical route for low-cost memory option with a low thermal budget compared to the chemical vapour deposited monolayer graphene. The LPEG memory devices show good data retention and reliable write-read-erase endurance over 300 cycles.



Sheena S. Sukumaran acknowledges the financial support from Department of Science and Technology, India through PURSE programme.


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Authors and Affiliations

  1. 1.Department of OptoelectronicsUniversity of KeralaThiruvananthapuramIndia
  2. 2.Department of PhysicsIndian Institute of Space-Science and Technology (IIST)ThiruvananthapuramIndia

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