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US 8,692,231 B2Granted
Functional molecular element and functional molecular device
AssigneesSony Corporation, Sony Deutschland GmbH
InventorsEriko Matsui, Nobuyuki Matsuzawa, Akio Yasuda, Oliver Harnack
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Abstract
A functional molecular element exhibiting its function under the operation of an electrical field is provided. A compound is used in which a pendant molecule, formed by 4-pentyl-4′-cyanobiphenyl, exhibiting positive dielectric constant anisotropy or a dipole moment along the direction of the long axis of the molecule, is covalently bonded to an electrically conductive linear or film-shaped principal-axis molecule having a conjugated system. The pendant molecule is changed in its orientation on application of an electrical field to change the conformation to switch the electrical conductivity of the electrically conductive principal-axis molecule.
Claims24
A functional molecular element employing a system comprising:
- a first molecule having dielectric constant anisotropy and/or dipole moment and having the orientation changed under the operation of an electrical field;
- and
- another molecule of a conjugated system having electrical properties changed as a result of a change in structure brought about by said change in orientation of said first molecule,
- wherein the conjugated system comprises an electrically conductive oligomer composed of molecules of the conjugated system, the molecular structure and electrical conductivity of a main chain of the conjugated system is configured to change based on the change in orientation of said first molecule such that the functional molecular element switches between an on state and an off state,
- wherein the change in structure of the molecule of a conjugated system having electrical properties brought about by said change in orientation of said first molecule is a conformational change.
2 more elements
A functional molecular device comprising:
- a system composed of a first molecule having dielectric constant anisotropy and/or dipole moment and having the orientation changed under the operation of an electrical field and another molecule of a conjugated system having electrical properties changed as a result of a change in structure brought about by said change in orientation of said first molecule, wherein the conjugated system comprises an electrically conductive oligomer composed of molecules of the conjugated system, the molecular structure and electrical conductivity of a main chain of the conjugated system is configured to change based on the change in orientation of said first molecule such that the functional molecular element switches between an on state and an off state;
- electrical field applying means for applying an electrical field to said first molecule exhibiting dielectric constant anisotropy and/or dipole moment;
- and
- input/output means for said other molecule of the conjugated system,
- wherein the change in structure of the molecule of the conjugated system having electrical properties brought about by said change in orientation of said first molecule is a conformational change.
2 more elements
A transistor comprising a functional molecular element, the functional molecular element including:
- a first molecule having dielectric constant anisotropy and/or dipole moment and having the orientation changed under the operation of an electrical field;
- and
- another molecule of a conjugated system having electrical properties changed as a result of a change in structure brought about by said change in orientation of said first molecule,
- wherein the conjugated system comprises an electrically conductive oligomer composed of molecules of the conjugated system, the molecular structure and electrical conductivity of a main chain of the conjugated system is configured to change based on the change in orientation of said first molecule such that the functional molecular element switches between an on state and an off state,
- wherein the change in structure of the molecule of a conjugated system having electrical properties brought about by said change in orientation of said first molecule is a conformational change.
2 more elements
A functional molecular device comprising:
- a system composed of a first molecule having dielectric constant anisotropy and/or dipole moment and having the orientation changed under the operation of an electrical field and another molecule of a conjugated system having electrical properties changed as a result of a change in structure brought about by said change in orientation of said first molecule, wherein the conjugated system comprises an electrically conductive oligomer composed of molecules of the conjugated system, the molecular structure and electrical conductivity of a main chain of the conjugated system is configured to change based on the change in orientation of said first molecule such that the functional molecular element switches between an on state and an off state;
- electrical field applying means for applying an electrical field to said first molecule exhibiting dielectric constant anisotropy and/or dipole moment;
- and
- input/output means for said other molecule of the conjugated system,
- wherein the electrically conductive oligomer is one or more of an oligofluorene, oligopyridine, porphiline one-dimensional oligomer, oligophenylene vinylene, oligoparaphenylene, oligonaphthalene, oligoanthracene, oligopyrene, oligoazulene, oligofuran, oligothiophene, oligoselenophene, oligo(paraphenylene sulfide), oligo(paraphenylene oxide) or oligoaniline.
2 more elements
A functional molecular device comprising:
- a system composed of a first molecule having dielectric constant anisotropy and/or dipole moment and having the orientation changed under the operation of an electrical field and another molecule of a conjugated system having electrical properties changed as a result of a change in structure brought about by said change in orientation of said first molecule, wherein the conjugated system comprises an electrically conductive oligomer composed of molecules of the conjugated system, the molecular structure and electrical conductivity of a main chain of the conjugated system is configured to change based on the change in orientation of said first molecule such that the functional molecular element switches between an on state and an off state;
- electrical field applying means for applying an electrical field to said first molecule exhibiting dielectric constant anisotropy and/or dipole moment;
- and
- input/output means for said other molecule of the conjugated system,
- wherein the electrically conductive oligomer has a degree of polymerization of 20 or less.
2 more elements
Dependencies are inferred from the claim text.