Single-molecule electrical contacts on silicon electrodes under ambient conditions
MetadataShow full item record
Funding and Sponsorship
The ultimate goal in molecular electronics is to use individual molecules as the active electronic component of a real-world sturdy device. For this concept to become reality, it will require the field of single-molecule electronics to shift towards the semiconducting platform of the current microelectronics industry. Here, we report silicon-based single-molecule contacts that are mechanically and electrically stable under ambient conditions. The single-molecule contacts are prepared on silicon electrodes using the scanning tunnelling microscopy break-junction approach using a top metallic probe. The molecular wires show remarkable current–voltage reproducibility, as compared to an open silicon/nano-gap/metal junction, with current rectification ratios exceeding 4,000 when a low-doped silicon is used. The extension of the single-molecule junction approach to a silicon substrate contributes to the next level of miniaturization of electronic components and it is anticipated it will pave the way to a new class of robust single-molecule circuits.
Showing items related by title, author, creator and subject.
Pla-Vilanova, P.; Aragonès, A.; Ciampi, S.; Sanz, F.; Darwish, Nadim; Diez-Perez, I. (2015)Herein, we report the spontaneous formation of single-molecule junctions via terminal alkyne contact groups. Self-assembled monolayers that form spontaneously from diluted solutions of 1, 4-diethynylbenzene (DEB) were ...
Darwish, Nadim; Aragonès, A.; Darwish, T.; Ciampi, S.; Díez-Pérez, I. (2014)Incorporating molecular switches as the active components in nanoscale electrical devices represents a current challenge in molecular electronics. It demands key requirements that need to be simultaneously addressed ...
Surface-bound norbornylogous bridges as molecular rulers for investigating interfacial electrochemistry and as single molecule switchesDarwish, Nadim; Paddon-Row, M.; Gooding, J. (2014)Electron transfer (ET) reactions through molecules attached to surfaces, whether they are through single molecules or ensembles, are the subject of much research in molecular electronics, bioelectronics, and electrochemistry. ...