Improvement of thermoelectric properties of p- and n-types oxide thick films fabricated by electrophoretic deposition

Masayuki Sakurai; Shigeru Horii; Ryoji Funahashi; Tetsuo Uchikoshi; Tohru Suzuki; Yoshio Sakka; Hiraku Ogino; Jun ichi Shimoyama; Kohji Kishio

Improvement of thermoelectric properties of p- and n-types oxide thick films fabricated by electrophoretic deposition

Masayuki Sakurai^*, Shigeru Horii, Ryoji Funahashi, Tetsuo Uchikoshi, Tohru Suzuki, Yoshio Sakka, Hiraku Ogino, Jun ichi Shimoyama, Kohji Kishio

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

Abstract

We report thermoelectric (TE) properties of mono-layer thick films of p-type [Ca₂CoO_3-δ]_0.62CoO₂ (Ca349) and n-type compounds of Ca_0.9La_0.1MnO₃ (Mn113) and LaNi_0.98Mo_0.02O₃ (Ni113) for the improvement of TE performance in multi-layered TE modules. In the case of magnetically aligned Ca349 film, the improvement of TE properties due to the reduction of resistivity (ρ) was achieved by optimization of hot-pressing temperature and ρ was sensitive to relative density of the Ca349 layer. For the decrease in ρ of the n-type layers, two different approaches, the choice of Ni113 as a n-type compound and usage of fine powders of Mn113, were attempted. Both approaches were effective for reducing ρ even in the sintering at ̃900°C.

Original language	English
Pages (from-to)	357-362
Number of pages	6
Journal	Materials Research Society Symposium Proceedings
Volume	1044
Publication status	Published - 2008 Oct 9
Externally published	Yes
Event	Thermoelectric Power Generation - Boston, MA, United States Duration: 2007 Nov 26 → 2007 Nov 29

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

@article{deaf897ec3964f8380526b548d75c0d6,

title = "Improvement of thermoelectric properties of p- and n-types oxide thick films fabricated by electrophoretic deposition",

abstract = "We report thermoelectric (TE) properties of mono-layer thick films of p-type [Ca2CoO3-δ]0.62CoO2 (Ca349) and n-type compounds of Ca0.9La0.1MnO3 (Mn113) and LaNi0.98Mo0.02O3 (Ni113) for the improvement of TE performance in multi-layered TE modules. In the case of magnetically aligned Ca349 film, the improvement of TE properties due to the reduction of resistivity (ρ) was achieved by optimization of hot-pressing temperature and ρ was sensitive to relative density of the Ca349 layer. For the decrease in ρ of the n-type layers, two different approaches, the choice of Ni113 as a n-type compound and usage of fine powders of Mn113, were attempted. Both approaches were effective for reducing ρ even in the sintering at{\~ }900°C.",

author = "Masayuki Sakurai and Shigeru Horii and Ryoji Funahashi and Tetsuo Uchikoshi and Tohru Suzuki and Yoshio Sakka and Hiraku Ogino and Shimoyama, {Jun ichi} and Kohji Kishio",

year = "2008",

month = oct,

day = "9",

language = "English",

volume = "1044",

pages = "357--362",

journal = "Materials Research Society Symposium Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "Thermoelectric Power Generation ; Conference date: 26-11-2007 Through 29-11-2007",

}

TY - JOUR

T1 - Improvement of thermoelectric properties of p- and n-types oxide thick films fabricated by electrophoretic deposition

AU - Sakurai, Masayuki

AU - Horii, Shigeru

AU - Funahashi, Ryoji

AU - Uchikoshi, Tetsuo

AU - Suzuki, Tohru

AU - Sakka, Yoshio

AU - Ogino, Hiraku

AU - Shimoyama, Jun ichi

AU - Kishio, Kohji

PY - 2008/10/9

Y1 - 2008/10/9

N2 - We report thermoelectric (TE) properties of mono-layer thick films of p-type [Ca2CoO3-δ]0.62CoO2 (Ca349) and n-type compounds of Ca0.9La0.1MnO3 (Mn113) and LaNi0.98Mo0.02O3 (Ni113) for the improvement of TE performance in multi-layered TE modules. In the case of magnetically aligned Ca349 film, the improvement of TE properties due to the reduction of resistivity (ρ) was achieved by optimization of hot-pressing temperature and ρ was sensitive to relative density of the Ca349 layer. For the decrease in ρ of the n-type layers, two different approaches, the choice of Ni113 as a n-type compound and usage of fine powders of Mn113, were attempted. Both approaches were effective for reducing ρ even in the sintering at ̃900°C.

AB - We report thermoelectric (TE) properties of mono-layer thick films of p-type [Ca2CoO3-δ]0.62CoO2 (Ca349) and n-type compounds of Ca0.9La0.1MnO3 (Mn113) and LaNi0.98Mo0.02O3 (Ni113) for the improvement of TE performance in multi-layered TE modules. In the case of magnetically aligned Ca349 film, the improvement of TE properties due to the reduction of resistivity (ρ) was achieved by optimization of hot-pressing temperature and ρ was sensitive to relative density of the Ca349 layer. For the decrease in ρ of the n-type layers, two different approaches, the choice of Ni113 as a n-type compound and usage of fine powders of Mn113, were attempted. Both approaches were effective for reducing ρ even in the sintering at ̃900°C.

UR - http://www.scopus.com/inward/record.url?scp=54749127050&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=54749127050&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:54749127050

SN - 0272-9172

VL - 1044

SP - 357

EP - 362

JO - Materials Research Society Symposium Proceedings

JF - Materials Research Society Symposium Proceedings

T2 - Thermoelectric Power Generation

Y2 - 26 November 2007 through 29 November 2007

ER -

Improvement of thermoelectric properties of p- and n-types oxide thick films fabricated by electrophoretic deposition

Abstract

ASJC Scopus subject areas

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