Synthesis of covalently linked molecular bridges between silicon electrodes in CMOS-based arrays of vertical Si/SiO 2/Si nanogaps

Ashwell, Geoffrey J.; Phillips, Laurie J.; Robinson, Benjamin J.; Barnes, Susan A.; Williams, Aled T.; Lambert, Colin J.; Grace, Iain M.; Sage, Ian C.; Cox, Timothy; Urasinska-Wojcik, Barbara

Abstract

Silicon nanogaps were bridged in situ by grafting 4-ethynylbenzaldehyde to activate the electrodes and coupling 2,6-diaminoanthra-9,10-quinone to link the coatings. The bridged structures exhibit currents of 11-14 nA at 1 V. The process is reversed by soaking in acidified solution, which causes the current to diminish. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

• Journal Article Type: Article
• Publication Date: Sep 5, 2011
• Deposit Date: Oct 2, 2012
• Journal: Angewandte Chemie - International Edition
• Print ISSN: 1433-7851
• Electronic ISSN: 1521-3773
• Publisher: Wiley
• Peer Reviewed: Peer Reviewed
• Volume: 50
• Issue: 37
• Pages: 8722-8726
• DOI: https://doi.org/10.1002/anie.201102791
• Keywords: molecular electronics, nanogaps, nanotechnology, self-assembly, semiconductors
• Public URL: https://uwe-repository.worktribe.com/output/959337
• Publisher URL: http://dx.doi.org/10.1002/anie.201102791
• Additional Information: Additional Information : Article first published online: 26 July, 2011
• Contract Date: Nov 15, 2016