Electronic transport in graphene decorated with Bi2Te3 nanoparticles

POSTER

Abstract


We investigate the electronic transport in monolayer graphene Hall bars in which the graphene surface is carefully cleaned and then decorated with a dilute coating of Bi2Te3 nanoparticles. The devices include both monolayer-on-silicon oxide and monolayer-on-boron nitride variants. The Bi2Te3 nanoparticles are high quality with few defects, and mono-disperse with a diameter of approximately 15 nm. Initial measurements were made on graphene with a low coverage of ~1 nanoparticle per 10^4 nm^2, and indicate transport not dissimilar from standard for graphene. Upon annealing the sample in Ar to promote removal of the nanoparticle polymer coating, a small leftward shift indicating electron doping was observed. Results in devices with higher nanoparticle densities will be presented.

Presenters

  • Joshua Cohen

    Department of Physics, Washington University in St. Louis, 1 Brookings Dr, St. Louis, MO 63130, Physics, Washington University, St. Louis

Authors

  • Joshua Cohen

    Department of Physics, Washington University in St. Louis, 1 Brookings Dr, St. Louis, MO 63130, Physics, Washington University, St. Louis

  • Jamie Elias

    Department of Physics, Washington University in St. Louis, 1 Brookings Dr, St. Louis, MO 63130, Physics, Washington University, St. Louis

  • Takashi Taniguchi

    National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305 0044, Japan, National Institute for Materials Science, Advanced Materials Laboratory, National Institute for Materials Science, , 1-1 Namiki, Tsukuba 305-0044, Japan, National Institute for Material Science, 1-1 Namiki, Tsukuba 305-0044, National Institute of Materials Science, NIMS, Japan, Advanced Materials Laboratory, NIMS, National Institute for Materials Science, Tsukuba, Japan, Advanced Materials Laboratory, National Institute for Materials Science, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0044, Japan, National Institute for Materials Science (NIMS), NIMS Tsukuba, NIMS, National Institute for Material Science, National Institute for Materials Science, Japan, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Japan, National Institute for Materials Science , Japan, Advanced Materials Laboratory, National Institute for Materials Science, Japan, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan, National Institute for Materials Science, Tsukuba, Ibaraki 305- 0044, Japan, National Institute for Material Science - Japan, National Institute for Materials Science, Namiki Tsukuba Ibaraki, Japan, National Institute of Material Science, Advanced Material Lab, NIMS, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Japan, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki, Japan, National Institute for Materials Science, Tsukuba, 1-1 Namiki, Tsukuba, National Institute for Materials Science, NIMS/Tsukuba, National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044 Japan, National Institute for Materials Science, Namiki, 305-0044, Japan, National Institute for Material Science, Japan, Advanced Materials Laboratory, NIMS, Japan, Advanced Materials Labaratory, National Institute for Materials Science, National Institute of Material Science, 1-1 Namiki, Tsukuba, Ibaraki 205-0044, Japan, National Institute of Materials Science, Japan

  • Kenji Watanabe

    National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305 0044, Japan, Advanced Materials Laboratory, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan, National Institute for Materials Science, Advanced Materials Laboratory, National Institute for Materials Science, , 1-1 Namiki, Tsukuba 305-0044, Japan, National Institute for Material Science, 1-1 Namiki, Tsukuba 305-0044, National Institute of Materials Science, NIMS, Japan, Advanced Materials Laboratory, NIMS, National Institute for Materials Science, Tsukuba, Japan, National Institute for Materials Science, Japan, Advanced Materials Laboratory, National Institute for Materials Science, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0044, Japan, National Institute for Materials Science (NIMS), NIMS Tsukuba, National Institute for Materials Science (Japan), NIMS, National Institute for Material Science, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Japan, National Institute for Materials Science , Japan, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan., Advanced Materials Laboratory, National Institute for Materials Science, Japan, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan, National Institute for Materials Science, Tsukuba, Ibaraki 305- 0044, Japan, National Institute for Material Science - Japan, National Institute for Materials Science, Namiki Tsukuba Ibaraki, Japan, National Institute of Material Science, Advanced Material Lab, NIMS, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Japan, Advanced Materials Laboratory, National Institute for Materials Science, Tsukuba, Ibaraki, Japan, National Institute for Materials Science, Tsukuba, 1-1 Namiki, Tsukuba, National Institute for Materials Science, NIMS/Tsukuba, National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044 Japan, National Institute for Materials Science, Namiki, 305-0044, Japan, National Institute for Material Science, Japan, Advanced Materials Laboratory, NIMS, Japan, Columbia University, Advanced Materials Labaratory, National Institute for Materials Science, National Institute of Material Science, 1-1 Namiki, Tsukuba, Ibaraki 205-0044, Japan, National Institute of Materials Science, Japan

  • Fudong Wang

    Department of Chemistry, Washington University in St. Louis, 1 Brookings Dr, St. Louis, MO 63130, Chemistry, Washington University in St. Louis

  • William Buhro

    Department of Chemistry, Washington University in St. Louis, 1 Brookings Dr, St. Louis, MO 63130, Chemistry, Washington University in St. Louis

  • Arashdeep S Thind

    Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, 1 Brookings Dr, St. Louis, MO 63130, Mechanical Engineering and Material Science, Washington University in St. Louis

  • Rohan Mishra

    Mechanical Engineering and Materials Science, Washington University in St. Louis, Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, 1 Brookings Dr, St. Louis, MO 63130, Mechanical Engineering and Material Science, Washington University in St. Louis, Department of Mechanical Engineering and Material Science, Washington University in St. Louis

  • Erik Henriksen

    Department of Physics, Washington University in St. Louis, 1 Brookings Dr, St. Louis, MO 63130, Washington University in St. Louis, Washington Univ, Physics, Washington University, St. Louis, Washington University, St. Louis, Department of Physics, Washington University in St. Louis