Thermoelectric conversion module member, thermoelectric conversion module, and method for manufacturing thermoelectric conversion module member

A thermoelectric conversion module member comprising a thermoelectric conversion layer, a diffusion prevention layer in direct contact with said thermoelectric conversion layer, a higher temperature side electrode, and a lower temperature side electrode having a temperature lower than the higher temperature side electrode, wherein

• said thermoelectric conversion layer is a layer containing a thermoelectric conversion material having a silicon element or a tellurium element,
• said diffusion prevention layer is a layer placed between said thermoelectric conversion layer and the higher temperature side electrode and containing a metal and the same thermoelectric conversion material as the thermoelectric conversion material contained in said thermoelectric conversion layer, and
• the amount of said thermoelectric conversion material in said diffusion prevention layer is 10 to 50 parts by weight with respect to 100 parts by weight of said metal, and
• wherein the diffusion prevention layer has a uniform composition comprising the metal and the thermoelectric conversion material.

A thermoelectric conversion module member comprising a thermoelectric conversion layer and a diffusion prevention layer in direct contact with said thermoelectric conversion layer, wherein

• said thermoelectric conversion layer is a layer containing a thermoelectric conversion material having a silicon element or a tellurium element,
• said diffusion prevention layer is a layer containing a metal and the same thermoelectric conversion material as the thermoelectric conversion material contained in said thermoelectric conversion layer, and
• the amount of said thermoelectric conversion material in said diffusion prevention layer is 10 to 50 parts by weight with respect to 100 parts by weight of said metal,
• wherein the diffusion prevention layer has a uniform composition comprising the metal and the thermoelectric conversion material, and
• wherein the thermoelectric conversion module member has only one diffusion prevention layer.