公开(公告)号：US20210104654A1

公开(公告)日：2021-04-08

申请号：US17117187

申请日：2020-12-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIROMASA TAMAKI ,  TSUTOMU KANNO ,  HIROKI SATO

IPC: H01L35/18 ,  H01L35/34

Abstract: A thermoelectric conversion material has a composition represented by the chemical formula Li3-aBi1-bSib, in which the range of values a and bis: 0≤a≤0.0001, and −a+0.0003≤b≤0.023; 0.0001≤a

公开(公告)号：US20200006616A1

公开(公告)日：2020-01-02

申请号：US16417791

申请日：2019-05-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MIHO UEHARA ,  YURIKO KANEKO ,  ATSUSHI ONO ,  MASASHIGE KAWABE ,  TSUTOMU KANNO ,  HIROMASA TAMAKI ,  HIROKI SATO

IPC: H01L35/32 ,  H01L35/16 ,  H01L35/04

Abstract: The thermoelectric conversion element according to the present disclosure comprises a first electrode, a second electrode, a first intermediate layer, a second intermediate layer, and a thermoelectric conversion layer. 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. The second intermediate layer is provided between the thermoelectric conversion layer and the second electrode. The second intermediate layer is in contact with the thermoelectric conversion layer. The second electrode is in contact with the second intermediate layer. The first electrode and the second electrode are composed of a CuZn alloy. The thermoelectric conversion layer is composed of a thermoelectric conversion material containing Mg. The thermoelectric conversion material contains at least one kind of element selected from the group consisting of Sb and Bi. The thermoelectric conversion material contains at least one kind of element selected from the group consisting of Se and Te. The thermoelectric conversion material has a La2O3-type crystalline structure. 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. A composition of the second intermediate layer is different from both a composition of the second electrode and a composition of the thermoelectric conversion layer.

公开(公告)号：US20180323360A1

公开(公告)日：2018-11-08

申请号：US15838106

申请日：2017-12-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TSUTOMU KANNO ,  HIROMASA TAMAKI ,  HIROKI SATO

IPC: H01L35/16 ,  C04B35/547

CPC classification number: H01L35/16 ,  C04B35/547 ,  C04B2235/666 ,  C04B2235/786

Abstract: The present invention provides a Zintl-phase thermoelectric conversion material represented by the chemical formula (I): Mg3+m-aAaB2-c-eCcEe   (I) where A represents at least one selected from the group consisting of Ca, Sr, Ba, Nb, Zn, and Al; B represents at least one selected from the group consisting of Sb and Bi; C represents at least one selected from the group consisting of Mn, Si, and Cr; E represents at least one selected from the group consisting of Se and Te; m is not less than −0.1 and not more than 0.4; a is not less than 0 and not more than 0.1; c is not less than 0 and not more than 0.1; e is not less than 0.001 and not more than 0.06; and the Zintl-phase thermoelectric conversion material has a La2O3 crystal structure and an average grain size of not less than 3 micrometers and not more than 70 micrometers.