Nagoya University

Japan Science and Technology Agency

King Abdulaziz University

Kunihito Koumoto

Hiromichi Ohta

Hideo Hosono

Masahiro Hirano

Numan Abdullah Salah

Yoriko Mune

Ahmed Alshahrei

Shittu Abdullahi

A thermoelectric nanocomposite including porous carbonaceous particles, electrically conductive carbon nanotubes, and a binder. The porous carbonaceous particles contain 88.5 to 96.45 wt % carbon, 1.0 to 3.0 wt % oxygen, 2.5 to 7.5 wt % sulfur, and 0.05 to 1.0 wt % vanadium. The thermoelectric nanocomposite has a thermoelectric figure of merit ZT of 0.018 to 0.026 at 293 K and 0.016 to 0.024 at 393 K, a power factor of 10 to 14.0 μw/mKat 233 K and greater than 14.0 to 18 μW/mKat 393 K, and a Seebeck value of 24 to 27 μV/K at 233 K and 30 to 34 μV/K at 393 K. The thermoelectric nanocomposite may include milled, acid-treated oil fly ash. Also, a method of forming the thermoelectric nanocomposite. The thermoelectric nanocomposite may be used in a thermoelectric device.

Oil fly ash and carbon nanotube thermoelectric nanocomposite

A thermoelectric conversion material having a novel composition is provided. The thermoelectric conversion material comprises a first dielectric material layer, a second dielectric material layer, and an electron localization layer that is present between the first dielectric material layer and the second dielectric material layer and that has a thickness of 1 nm.

Thermoelectric conversion material and production method for thermoelectric conversion material

A thermoelectric conversion material includes a superlattice structure produced by laminating a barrier layer containing insulating SrTiO, and a quantum well layer containing SrTiOwhich has been converted into a semiconductor by doping an n-type impurity therein. The quantum well layer has a thickness 4 times or less the unit lattice thickness of SrTiOwhich has been converted into a semiconductor by doping an n-type impurity therein.

Thermoelectric material, infrared sensor and image forming device

Growing community of inventors

Nagoya, Japan

Kunihito Koumoto