A single-molecule conductance study on the rotational isomers of a hexaarylbenzene derivative carrying dipolar rotating units. (1st October 2021)

• Record Type: Journal Article
• Authors: Miyazaki, Takuya; Shoji, Yoshiaki; Fujii, Shintaro; Fukushima, Takanori
• Is Part Of: Japanese journal of applied physics. Volume 60:Number 10(2021)
• Publication Date: 2021-10-01
• Subjects: Single-molecule conductance -- Scanning tunneling microscopy-break junction -- Single-molecule junction -- Single-molecule switch/memory; Physics -- Periodicals; 621.05
• DOI: 10.35848/1347-4065/ac26a9
• Languages: English
• ISSNs: 0021-4922

Abstract

Abstract: Using a scanning tunneling microscopy-break junction (STM-BJ) technique, we evaluated the single-molecule conductance of stable but interconvertible two rotational isomers of a hexaarylbenzene derivative featuring dipolar rotatable difluorophenyl units and tripodal thiol groups. The STM-BJ measurements of a configuration of single-molecule junction, formed between a Au-STM tip and a Au(111)/mica substrate covered with the hexaarylbenzene molecule, showed that the conductance behaviors of the rotational isomers are different from one another. This result takes a step forward in our goal of developing single-molecule switching/memory systems driven by electric fields.