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.