Fabrication and characterization of crossbar arrays of h-BN based memristors

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Project Description

The project aims to fabricate memristors with metal/h-BN/metal structure, where h-BN means hexagonal boron nitride. We will employ monolayer and multialyer h-BN, as well as different metals like Au, Ti, Ag and/or Ni. The student will characterize the morphology of the materials and devices using atomic force microscopy, scanning electron microscopy, and Raman spectroscopy. The devices fabricated will be characterized using a probe station connected to a semiconductor parameters analyzer. The goal is to observe resistive switching and explore the effect of the metallic electrodes.
Program - Materials Science & Engineering
Division - Physical Sciences and Engineering
Field of Study - Two-dimensional materials based electronic devices

About the
Researcher

Mario Lanza

Associate Professor, Material Science and Engineering

 Mario Lanza

​Professor Lanza's research focuses on the integration of two-dimensional (2D) materials in solid-state nano/micro-electronic devices and circuits, with special emphasis on memristive crossbar arrays and their use to build artificial neural networks. He puts special effort on using fabrication methods compatible with the industry, and to characterize the yield and variability of large amounts of devices in a statistical manner. He is one of the world leaders on the study of hexagonal boron nitride (h-BN), as well as many other ultra-thin dielectrics for electronic devices (SiO2, HfO2, Al2O3). He is famous for his expertise on nanoelectronic characterization of multiple materials and devices using scanning probe microscopy (SPM).

Desired Project Deliverables

Raman spectra of the 2D material Atomic force microscope three-dimensional maps of the structure of the devices Scanning electron microscope images of the devices Current versus voltage plots indicating the set and reset voltages of the devices, as well as their state currents

RECOMMENDED STUDENT ACADEMIC & RESEARCH BACKGROUND

Bachelor in Materials Science and Engineering
Bachelor in Materials Science and Engineering
Extensive experience with AFM, SEM, Raman, and probe station.
Extensive experience with AFM, SEM, Raman, and probe station.
Experience with memristors
Experience with memristors