Showing papers by "Adam M. Rawlett published in 1999"
TL;DR: A molecule containing a nitroamine redox center was used in the active self-assembled monolayer in an electronic device that exhibited negative differential resistance and an on-off peak-to-valley ratio in excess of 1000:1.
Abstract: A molecule containing a nitroamine redox center (2'-amino-4-ethynylphenyl-4'-ethynylphenyl-5'-nitro-1-benzenethiol) was used in the active self-assembled monolayer in an electronic device. Current-voltage measurements of the device exhibited negative differential resistance and an on-off peak-to-valley ratio in excess of 1000:1.
2,295 citations
TL;DR: High yield, programmable patterning of a self-assembled monolayer of dodecanethiol was performed by applying voltage pulses from a scanning tunneling microscope and conjugated oligomers were observed to be subsequently chemisorbed onto the patterned sites.
Abstract: We report the in situ replacement of conjugated molecules in an insulating matrix by scanned probe microscope lithography. High yield, programmable patterning of a self-assembled monolayer of dodecanethiol was performed by applying voltage pulses from a scanning tunneling microscope. Conjugated oligomers were observed to be subsequently chemisorbed onto the patterned sites.
57 citations
TL;DR: In this paper, the authors report on some of the recent advances in the development and testing of molecular-scale electronic devices, devices that may ultimately be the basis of a molecular-based computer.
Abstract: This paper reports on some of the recent advances in the development and testing of molecular-scale electronic devices, devices that may ultimately be the basis of a molecular-based computer. These advances include: the synthesis of molecules which will perform specific electronic functions, self-assembled monolayer formation of rigid-rod conjugated oligomers, novel methodologies for the design and testing of molecular electronic devices, and the observance of negative differential resistance (NDR) through a molecule.
34 citations
05 Dec 1999
TL;DR: The recent state-of-the-art of molecular-scale device systems utilizing self-assembled oligomers as the key fabrication strategy is discussed in this paper, where a variety of devices have been demonstrated, including switches with inherent mechanisms significantly different from conventional solid state devices.
Abstract: The recent state-of-the-art of molecular-scale device systems utilizing self-assembled oligomers as the key fabrication strategy is discussed A variety of devices have been demonstrated, including switches with inherent mechanisms significantly different from conventional solid state devices
11 citations
TL;DR: In this paper, active self-assembled monolayer (SAM) devices with active components such as nitroamine (2′-amino-4-ethynylphenyl-4′-et al.
Abstract: Molecular devices utilizing active self-assembled monolayer (SAM) (containing nitroamine (2′-amino-4-ethynylphenyl-4′-ethynylphenyl-5′-nitro-1-benzenethiolate) and nitro (4-ethynylphenyl-4′-ethynylphenyl-2′-nitro-1-benzenethiolate) redox center) as the active component are reported. Current-voltage measurements of the devices exhibited negative differential resistance at room temperature and an on-off peak-to-valley ratio in excess of 1000:1 at low temperature.
3 citations
TL;DR: In this article, a solution-phase and solid-support based synthesis of molecular wires of precise length and dimensions is presented, and their methods of addressing these wires via molecular "alligator clips" to gold and platinum electrodes of macro-scale dimensions.
Abstract: As we rapidly approach the point at which solid-state electronic devices cease to be made any smaller, molecular scale electronics offers, perhaps, the best chance for a continued miniaturization of computational devices. We must, however, completely re-think our approach to lithography. Presented in this paper are our solution-phase and solid-support based syntheses of molecular wires of precise length and dimensions, and our methods of addressing these wires via molecular “alligator clips” to gold and platinum electrodes of macroscale dimensions.
1 citations