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Synthesis of Covalently Linked Molecular Bridges between Silicon Electrodes in CMOS‐Based Arrays of Vertical Si/SiO 2 /Si Nanogaps
Author(s) -
Ashwell Geoffrey J.,
Phillips Laurie J.,
Robinson Benjamin J.,
Barnes Susan A.,
Williams Aled T.,
UrasinskaWojcik Barbara,
Lambert Colin J.,
Grace Iain M.,
Cox Timothy I.,
Sage Ian C.
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201102791
Subject(s) - silicon , electrode , covalent bond , in situ , coupling (piping) , materials science , cmos , optoelectronics , nanotechnology , chemistry , organic chemistry , metallurgy
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.