Covalently bonded single-molecule junctions with stable and reversible photoswitched conductivity.


Journal Article

Through molecular engineering, single diarylethenes were covalently sandwiched between graphene electrodes to form stable molecular conduction junctions. Our experimental and theoretical studies of these junctions consistently show and interpret reversible conductance photoswitching at room temperature and stochastic switching between different conductive states at low temperature at a single-molecule level. We demonstrate a fully reversible, two-mode, single-molecule electrical switch with unprecedented levels of accuracy (on/off ratio of ~100), stability (over a year), and reproducibility (46 devices with more than 100 cycles for photoswitching and ~10(5) to 10(6) cycles for stochastic switching).

Full Text

Duke Authors

Cited Authors

  • Jia, C; Migliore, A; Xin, N; Huang, S; Wang, J; Yang, Q; Wang, S; Chen, H; Wang, D; Feng, B; Liu, Z; Zhang, G; Qu, D-H; Tian, H; Ratner, MA; Xu, HQ; Nitzan, A; Guo, X

Published Date

  • June 2016

Published In

Volume / Issue

  • 352 / 6292

Start / End Page

  • 1443 - 1445

PubMed ID

  • 27313042

Pubmed Central ID

  • 27313042

Electronic International Standard Serial Number (EISSN)

  • 1095-9203

International Standard Serial Number (ISSN)

  • 0036-8075

Digital Object Identifier (DOI)

  • 10.1126/science.aaf6298


  • eng