• 文献标题:   Fabrication of hybrid molecular devices using multi-layer graphene break junctions
  • 文献类型:   Article
  • 作  者:   ISLAND JO, HOLOVCHENKO A, KOOLE M, ALKEMADE PFA, MENELAOU M, ALIAGAALCALDE N, BURZURI E, VAN DER ZANT HSJ
  • 作者关键词:   hybrid molecular device, multilayer graphene, break junction, helium ion microsope, heat equation, simmons tunneling model, copper curcuminoid molecule
  • 出版物名称:   JOURNAL OF PHYSICSCONDENSED MATTER
  • ISSN:   0953-8984 EI 1361-648X
  • 通讯作者地址:   Delft Univ Technol
  • 被引频次:   17
  • DOI:   10.1088/0953-8984/26/47/474205
  • 出版年:   2014

▎ 摘  要

We report on the fabrication of hybrid molecular devices employing multi-layer graphene (MLG) flakes which are patterned with a constriction using a helium ion microscope or an oxygen plasma etch. The patterning step allows for the localization of a few-nanometer gap, created by electroburning, that can host single molecules or molecular ensembles. By controlling the width of the sculpted constriction, we regulate the critical power at which the electroburning process begins. We estimate the flake temperature given the critical power and find that at low powers it is possible to electroburn MLG with superconducting contacts in close proximity. Finally, we demonstrate the fabrication of hybrid devices with superconducting contacts and anthracene-functionalized copper curcuminoid molecules. This method is extendable to spintronic devices with ferromagnetic contacts and a first step towards molecular integrated circuits.