Improvement of Bi-Te thermoelectric ink directed to printing thermoelectric devices

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K04720
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: General applied physics
• Research Institution: Japan Advanced Institute of Science and Technology
• Principal Investigator: KOYANO Mikio 北陸先端科学技術大学院大学, 先端科学技術研究科, 教授 (60195873)
• Project Period (FY): 2015-10-21 – 2018-03-31
• Keywords: 熱電変換 / 熱電インク / エネルギーハーベスティング / 廃熱利用 / 環境・エネルギー / インプリンティング

Outline of Final Research Achievements

Thermoelectric power generation is a technology to obtain electric power from a temperature difference by using thermoelectric materials, and is attracting attention as a new technology to effectively utilize waste heat. For industrial application of the thermoelectric power generation, it is required to manufacture printing-thermoelectric-device with low cost, large area / high density. Thus, many groups in Japan and abroad are developing researches on that printing thermoelectric devices.
In this research project, we developed a Bi-Te thermoelectric ink for the printing, and (1) succeeded in realizing performance equivalent to that of a commercial product by controlling heat treatment conditions and crystal orientation in the nanobulk. Moreover, (2) we succeeded in obtaining a micro-size thermoelectric element pattern by introducing imprinting technology.
This achievement is a key-technology for industrial application of thermoelectric technology and will help solve energy problems.

Free Research Field

固体物理，熱電変換