# US RE44,510 E1 · Multifunctional linker molecules for tuning electronic charge transport through organic-inorganic composite structures and uses thereof

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- Number: US RE44,510 E1
- Document ID: USRE44510E1
- Status: Granted
- Kind: E1
- Application number: 13/620,847
- Filed: 2012-09-15
- Granted: 2013-09-24
- Earliest claimed: 2000-12-08
- Assignees: Sony Deutschland GmbH
- Applicants: Jurina Wessels; William E. Ford; Akio Yasuda
- Inventors: Jurina Wessels; William E. Ford; Akio Yasuda
- Web page: https://patentgrep.com/patent/USRE44510E1

## Abstract

The invention relates to tuned multifunctional linker molecules for charge transport through organic-inorganic composite structures. The problem underlying the present invention is to provide multifunctional linker molecules for tuning the conductivity in nanoparticle-linker assemblies which can be used in the formation of electronic networks and circuits and thin films of nanoparticles. The problem is solved according to the invention by providing a multifunctional linker molecule of the general structure CON1-FUNC1-X-FUNC2-CON2 in which X is the central body of the molecule, FUNC1 and FUNC2 independently of each other are molecular groups introducing a dipole moment and/or capable of forming inter-molecular and/or intramolecular hydrogen bonding networks, and CON1 and CON2 independently of each other are molecular groups binding to nanostructured units comprising metal and semiconductor materials.

## Claims

### Claim 1

A composite structure having the following general formula:
METAL-CON-FUNC-X-FUNC-CON-METAL
wherein METAL is selected from the group consisting of Au, Ag, Cu, Pt, Hg and Fe; and
wherein CON-FUNC-X-FUNC-CON is a multifunctional linker molecule selected from the group consisting of a 1,4-dimercaptoacetamidobenzene having the following general formula:
wherein R1 and R2 are each independently selected from the group consisting of a CH3 group, and a Cl atom, a 1,4-dimercaptoacetamido-9,10-anthraquinone group, a 1,5-dimercaptoacetamido-9,10-anthraquinone group, a 1,8-dimercaptoacetamidooctane group, a 1,4-dithiocarbamatobenzene group and a 1,4-dithiocarbamatocyclohexane group,; and
wherein the conductivity of the composite structure is determined by the structure of the multifunctional linker molecule.

### Claim 2 (depends on 1)

The composite structure according to claim 1, wherein R1 and R2 represent a CH3 group.

### Claim 3 (depends on 2)

The composite structure according to claim 2, wherein R1 and R2 represent a Cl atom.

### Claim 4 (depends on 2)

The composite structure according to claim 2, wherein R1 represents a CH3 group and R2 represents a Cl atom.