• 文献标题:   High-Quality Reduced Graphene Oxide Electrodes for Sub-Kelvin Studies of Molecular Monolayer Junctions
  • 文献类型:   Article
  • 作  者:   KUHNEL M, OVERGAARD MH, HELS MC, CUI A, VOSCH T, NYGARD J, LI T, LAURSEN BW, NORGAARD K
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF PHYSICAL CHEMISTRY C
  • ISSN:   1932-7447
  • 通讯作者地址:   Univ Copenhagen
  • 被引频次:   2
  • DOI:   10.1021/acs.jpcc.8b08377
  • 出版年:   2018

▎ 摘  要

Electron transport phenomena in molecular monolayers are complex and potentially different from those of single molecules because of, for example, molecule-molecule interactions. Unfortunately, access to detailed mechanistic investigations of molecular monolayer junctions at ultralow temperatures is typically hampered by the narrow range of operating temperatures for most large-area device platforms. Here, we present a highly optimized chemically derived graphene material with a near temperature-independent conductance profile. Using this material as a conducting interlayer electrode in solid-state molecular electronic devices, we show robust and reliable large-area molecular junction operation at temperatures ranging from room temperature to below 1 K, and we demonstrate the ability to measure inelastic electron tunneling spectroscopy of a conjugated molecular monolayer at cryogenic temperatures.