Formulations for voltage switchable dielectric material having a stepped voltage response and methods for making the same
First Claim
1. A voltage switchable dielectric material comprising:
- a dielectric matrix material;
a first semiconductive material characterized by a first bandgap energy and disposed within the matrix material;
a second semiconductive material disposed within the dielectric matrix material and characterized by a second bandgap energy different than the first bandgap energy; and
a third semiconductive material disposed within the dielectric matrix material and characterized by a third bandgap energy different than the first and second bandgap energies.
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Accused Products
Abstract
Formulations for voltage switchable dielectric materials include two or more different types of semiconductive materials uniformly dispersed within a dielectric matrix material. The semiconductive materials are selected to have different bandgap energies in order to provide the voltage switchable dielectric material with a stepped voltage response. The semiconductive materials can comprise inorganic particles, organic particles, or an organic material that is soluble in, or miscible with, the dielectric matrix material. Formulations optionally can also include electrically conductive materials. At least one of the conductive or semiconductive materials in a formulation can comprise particles characterized by an aspect ratio of at least 3 or greater.
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Citations
16 Claims
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1. A voltage switchable dielectric material comprising:
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a dielectric matrix material; a first semiconductive material characterized by a first bandgap energy and disposed within the matrix material; a second semiconductive material disposed within the dielectric matrix material and characterized by a second bandgap energy different than the first bandgap energy; and a third semiconductive material disposed within the dielectric matrix material and characterized by a third bandgap energy different than the first and second bandgap energies. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A voltage switchable dielectric material comprising:
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a dielectric matrix material; particles of a first semiconductive material characterized by a first bandgap energy and disposed within the matrix material, the particles of the first semiconductive material further characterized by an aspect ratio of at least 3;
1; anda second semiconductive material disposed within the dielectric matrix material and characterized by a second bandgap energy different than the first bandgap energy. - View Dependent Claims (8, 9, 10, 11)
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12. A voltage switchable dielectric material comprising:
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a dielectric matrix material; particles of an electrically conductive material disposed within the matrix material and characterized by an aspect ratio of at least 3;
1;a first semiconductive material characterized by a first bandgap energy and disposed within the matrix material; and a second semiconductive material disposed within the dielectric matrix material and characterized by a second bandgap energy different than the first bandgap energy. - View Dependent Claims (13, 14, 15, 16)
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Specification