公开(公告)号：US20210043822A1

公开(公告)日：2021-02-11

申请号：US17079403

申请日：2020-10-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiromasa TAMAKI ,  Tsutomu KANNO ,  Hiroki SATO

IPC: H01L35/18 ,  H02N11/00

Abstract: A thermoelectric conversion material has a composition represented by the chemical formula Li3-aBi1-bGeb, in which the range of values a and b is: 0≤a≤0.0003, and −a+0.0003≤b≤0.108; 0.0003≤a≤0.003, and 0≤b≤0.108; or 0.003≤a≤0.085, and 0≤b≤exp[−0.157×(In(a))2−2.22×In(a)−9.81], and in which the thermoelectric conversion material has a BiF3-type crystal structure and has a p-type polarity.

公开(公告)号：US20240365669A1

公开(公告)日：2024-10-31

申请号：US18771347

申请日：2024-07-12

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuriko KANEKO ,  Hiromasa TAMAKI ,  Tsutomu KANNO ,  Reiko HAGAWA ,  Hiroki SATO ,  Hyunjeong NAM

IPC: H10N10/852 ,  C22C1/04 ,  C22C12/00 ,  C22C30/00

CPC classification number: H10N10/852 ,  C22C1/04 ,  C22C12/00 ,  C22C30/00

Abstract: A thermoelectric conversion material is a polycrystalline material composed of a plurality of crystal grains and has a composition represented by formula (I): Mg3+mSbaBi2−a−cAc. In the formula (I), A is at least one element selected from the group consisting of Se and Te, the value of m is greater than or equal to 0.01 and less than or equal to 0.5, the value of a is greater than or equal to 0 and less than or equal to 1.0, and the value of c is greater than or equal to 0.001 and less than or equal to 0.06. The thermoelectric conversion material has an Mg-rich region.

公开(公告)号：US20240099139A1

公开(公告)日：2024-03-21

申请号：US18524965

申请日：2023-11-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Miho UEHARA ,  Yuriko KANEKO ,  Atsushi ONO ,  Masashige KAWABE ,  Tsutomu KANNO ,  Hiromasa TAMAKI ,  Hiroki SATO

IPC: H10N10/17 ,  H10N10/81 ,  H10N10/852

CPC classification number: H10N10/17 ,  H10N10/81 ,  H10N10/852

Abstract: A fabrication method of a thermoelectric conversion element includes forming a first metal layer containing Cu on a first surface of a thermoelectric conversion layer, and forming a first electrode and a first intermediate layer from the first metal layer. The thermoelectric conversion layer is composed of a thermoelectric conversion material containing Mg and at least one kind of element selected from the group consisting of Sb and Bi, the first intermediate layer is provided between the thermoelectric conversion layer and the first electrode, the first intermediate layer is in contact with the thermoelectric conversion layer, the first electrode is in contact with the first intermediate layer, and a composition of the first intermediate layer is different from both a composition of the first electrode and a composition of the thermoelectric conversion layer.