Depositing nanowires on a substrate
AssigneeThe Florida State University Research Foundation, Inc.
InventorSeunghun Hong
Life of this patent
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Abstract
Processes for depositing nanowires on a substrate and nanowire-based devices that can be formed using these processes are described. In one embodiment, a process includes forming an organic layer on an electrically conductive layer formed on the substrate. The organic layer includes a first region and a second region. The first region has an affinity for the nanowires and is electrically conductive. The process also includes contacting the organic layer with a composition including the nanowires dispersed in a compatible solvent for a time sufficient to selectively deposit at least one of the nanowires on the first region of the organic layer.
Claims108
A process of depositing nanowires on an electrically conductive layer formed on a substrate, which process comprises:
- forming an organic layer on the electrically conductive layer, the organic layer including a first region and a second region, the first region having an affinity for the nanowires and being electrically conductive;
- and
- contacting the organic layer with a composition including the nanowires dispersed in a compatible solvent for a time sufficient to selectively deposit at least one of the nanowires on the first region of the organic layer.
A process of depositing nanowires on a substrate, which process comprises:
- forming a pair of electrical contacts on the substrate, the pair of electrical contacts being spaced apart from one another;
- depositing a first plurality of organic molecules on the pair of electrical contacts, the first plurality of organic molecules having an affinity for the nanowires and being electrically conductive;
- depositing a second plurality of organic molecules on the substrate between the pair of electrical contacts, the second plurality of organic molecules substantially lacking an affinity for the nanowires;
- and
- contacting the pair of electrical contacts including the first plurality of organic molecules deposited thereon with a composition including the nanowires dispersed in a compatible solvent for a time sufficient so that at least one of the nanowires is deposited to electrically couple the pair of electrical contacts.
A process of depositing nanowires on a substrate, which process comprises:
- depositing a first plurality of organic molecules on the substrate to form a plurality of domains that are spaced apart from one another, each of the first plurality of organic molecules including a plurality of conjugated π-bonds and an exposed polar group;
- providing a composition including the nanowires dispersed in a compatible solvent;
- and
- contacting the substrate including the first plurality of organic molecules deposited thereon with the composition for a time sufficient so that each of the plurality of domains includes at least one of the nanowires deposited thereon.
A process of depositing nanowires on a substrate, which process comprises:
- depositing a plurality of organic molecules on an area of the substrate, each of the plurality of organic molecules including an exposed non-polar group;
- providing a composition including the nanowires dispersed in a halogenated organic solvent;
- and
- contacting the substrate including the plurality of organic molecules deposited thereon with the composition for a time sufficient to selectively deposit at least one of the nanowires on a remaining area of the substrate not having the plurality of organic molecules deposited thereon.
A process of depositing nanowires on an electrically conductive layer formed on a substrate, which process comprises:
- forming a patterned layer on the electrically conductive layer, the patterned layer including a first region and a second region, the first region of the patterned layer having an affinity for the nanowires and being electrically conductive, the second region of the patterned layer substantially lacking an affinity for the nanowires;
- and
- contacting the patterned layer with a composition including the nanowires dispersed in a compatible solvent for a time sufficient to selectively deposit at least one of the nanowires on the first region of the patterned layer.
A nanowire-based device, which comprises:
- an electrically conductive layer;
- an organic layer positioned on the electrically conductive layer, the organic layer being formed of a plurality of organic molecules each including a plurality of conjugated π-bonds;
- and
- a nanowire positioned on the organic layer.
A nanowire-based device, which comprises:
- a substrate;
- a pair of electrical contacts formed on the substrate, the pair of electrical contacts being spaced apart from one another;
- a first plurality of organic molecules deposited on the pair of electrical contacts, the first plurality of organic molecules being electrically conductive and each including a polar group;
- and
- a first nanowire deposited on the first plurality of organic molecules to electrically couple the pair of electrical contacts.
Dependencies are inferred from the claim text.