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US 8,299,349 B2Granted
Thermoelectric materials and chalcogenide compounds
AssigneeSamsung Electronics Co., Ltd.
InventorsJong-soo Rhyee, Sang-mock Lee
Life of this patent
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Abstract
A thermoelectric material is disclosed. The thermoelectric material is represented by the following formula; (A1-aA′a)4-x(B1-bB′b)3-y. A is a Group XIII element and A′ may be a Group XIII element, a Group XIV element, a rare earth element, a transition metal, or combinations thereof. A and A′ are different from each other. B may be S, Se, Te and B′ may be a Groups XIV, XV, XVI or combinations thereof. B and B′ are different from each other. a is equal to or larger than 0 and less than 1. b is equal to or larger than 0 and less than 1. x is between −1 and 1 and wherein y is between −1 and 1.
Claims48
A thermoelectric material comprising a chalcogenide compound represented by the following formula:
- (A1-aA′a)4-x(B1-bB′b)3-y
- wherein A is a Group XIII element, and A′ is at least one selected from a group consisting of a Group XIII element, a Group XIV element, a rare earth element, a transition metal, and combinations thereof, wherein A and A′ are different from each other;
- wherein B is at least one selected from a group consisting of S, Se, Te and combinations thereof, and B′ is at least one selected from a group consisting of elements of Groups XIV, XV, XVI and combinations thereof, wherein B and B′ are different from each other;
- wherein a is larger than 0 and less than 1;
- wherein b is equal to or larger than 0 and less than 1;
- wherein x is between −1 and 1;
- and
- wherein y is between −1 and 1.
5 more elements
A chalcogenide compound represented by the following formula:
- (A1-aA′a)4-x(B1-bB′b)3-y
- wherein A is a Group XIII element, and A′ is at least one selected from a group consisting of a Group XIII element, a Group XIV element, a rare earth element, a transition metal and combinations thereof, wherein A and A′ are different from each other;
- wherein B is at least one selected from a group consisting of S, Se, Te and combinations thereof, and B′ is at least one selected from a group consisting of elements of Groups XIV, XV, and XVI, and combinations thereof wherein B and B′ are different from each other;
- wherein a is larger than 0 and less than 1;
- wherein b is equal to or larger than 0 and less than 1;
- wherein x is between −1 and 1;
- and
- wherein y is between −1 and 1,
- wherein the chalcogenide compound has a lattice distortion.
6 more elements
A thermoelectric device, comprising:
- a first electrode;
- a second electrode;
- and
- a thermoelectric material disposed between the first electrode and the second electrode, the thermoelectric material comprising a chalcogenide compound represented by the following formula:
- (A1-aA′a)4-x(B1-bB′b)3-y
- wherein A is a Group XIII element, and A′ is at least one selected from a group consisting of a Group XIII element, a Group XIV element, a rare earth element, a transition metal and combinations thereof, wherein A and A′ are different from each other;
- wherein B is at least one selected from a group consisting of S, Se, Te, and combinations thereof and B′ is at least one selected from a group consisting of elements of Groups XIV, XV, XVI and combinations thereof, wherein B and B′ are different from each other;
- wherein a is larger than 0 and less than 1;
- wherein b is equal to or larger than 0 and less than 1;
- wherein x is between −1 and 1;
- and
- wherein y is between −1 and 1.
9 more elements
An apparatus, comprising:
- a heat source;
- and
- a thermoelectric device including:
- a thermoelectric material which absorbs heat from the heat source and comprises a chalcogenide compound represented by the following formula:
- (A1-aA′a)4-x(B1-bB′b)3-y
- wherein A is a Group XIII element, and A′ is at least one selected from a group consisting of a Group XIII element, a Group XIV element, a rare earth element, a transition metal and combinations thereof, wherein A and A′ are different from each other;
- wherein B is at least one selected from a group consisting of S, Se, Te, and combinations thereof and B′ is at least one selected from a group consisting of elements of Groups XIV, XV, XVI and combinations thereof, wherein B and B′ are different from each other;
- wherein a is larger than 0 and less than 1;
- wherein b is equal to or larger than 0 and less than 1;
- wherein x is between −1 and 1;
- and
- wherein y is between −1 and 1,
- a first electrode in contact with the thermoelectric material;
- and
- a second electrode disposed substantially opposite the first electrode and in contact with the thermoelectric material.
12 more elements
A thermoelectric material comprising a chalcogenide compound represented by the following formula:
- (A1-aA′a)4-x(B1-bB′b)3-y
- wherein A is a Group XIII element, and A′ is at least one selected from a group consisting of a Group XIII element, a Group XIV element, a rare earth element, a transition metal, and combinations thereof, wherein A and A′ are different from each other;
- wherein B is at least one selected from a group consisting of S, Se, Te, and combinations thereof and B′ is at least one selected from a group consisting of elements of Groups XIV, XV, XVI and combinations thereof, wherein B and B′ are different from each other;
- wherein a is larger than 0 and less than 1;
- wherein b is equal to or larger than 0 and less than 1;
- wherein x is one of between −1 and 0 and between 0 and 1;
- and
- wherein y is between −1 and 1.
5 more elements
Dependencies are inferred from the claim text.