Single-molecule single-electron transistor (SM-SET) based on π-conjugated quinoidal-fused oligosilole and heteroepitaxial spherical Au/Pt nanogap electrodes
At a Glance
Section titled “At a Glance”| Metadata | Details |
|---|---|
| Publication Date | 2019-11-12 |
| Journal | Applied Physics Express |
| Authors | Seung Joo Lee, Jaeyeon Kim, Tomohiro Tsuda, Ryo Takano, Ryo Shintani |
| Institutions | Tokyo Institute of Technology, The University of Osaka |
| Citations | 17 |
Abstract
Section titled “Abstract”A single-molecule single-electron transistor (SM-SET) consisting of a π-conjugated quinoidal-fused oligosilole derivative, Si-2, of radius 0.75 nm and heteroepitaxial spherical (HS) Au/Pt nanogap electrodes is demonstrated. Si-2 with two inner silicon atoms and two ethylenethiol groups at both ends is chemisorbed by an S-Au bond between HS-Au/Pt nanogap electrodes fabricated by combining electron-beam lithography and electroless Au plating. An ideal Coulomb staircase, Coulomb oscillation, and Coulomb diamond were observed using the 1.5 nm Si-2 SM-SET, which were supported by theoretical results based on the orthodox model.