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THERMOELECTRIC MATERIAL, METHOD FOR PRODUCING SAME, AND THERMOELECTRIC CONVERSION MODULE USING SAME

Foreign code F130007776
File No. K04402WO
Posted date Dec 12, 2013
Country WIPO
International application number 2013JP063580
International publication number WO 2013/179897
Date of international filing May 15, 2013
Date of international publication Dec 5, 2013
Priority data
  • P2012-124940 (May 31, 2012) JP
Title THERMOELECTRIC MATERIAL, METHOD FOR PRODUCING SAME, AND THERMOELECTRIC CONVERSION MODULE USING SAME
Abstract

This thermoelectric material is provided with a semiconductor substrate, a semiconductor oxide film that is formed on the substrate, and a thermoelectric layer that is arranged on the oxide film. The semiconductor oxide film is provided with a first nano-opening, and the thermoelectric layer is in the form of a plurality of semiconductor nano-dots piled up on the first nano-opening so as to have a particle packed structure. At least some of the plurality of semiconductor nano-dots have second nano-openings formed in the surfaces thereof, and are connected with each other through the second nano-openings, with the crystal orientations thereof being aligned with each other. This thermoelectric material can be produced through: a step wherein a semiconductor substrate is oxidized, thereby forming a semiconductor oxide film thereon

a step wherein a first nano-opening is formed in the oxide film

and a step wherein a plurality of semiconductor nano-dots are piled up on the first nano-opening by epitaxial growth. A thermoelectric material having excellent thermoelectric conversion performance can be achieved by this configuration.

  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • Inventor
  • NAKAMURA, YOSHIAKI,
  • ISOGAWA, MASAYUKI,
  • UEDA, TOMOHIRO,
  • KIKKAWA, JUN,
  • SAKAI, AKIRA,
  • HOSONO, HIDEO
IPC(International Patent Classification)
Reference ( R and D project ) PRESTO New Materials Science and Element Strategy AREA
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