Fabrication of high performance thermoelectric devices using incommensurate chimney ladder compounds

• Project/Area Number: 25289222
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Inorganic materials/Physical properties
• Research Institution: Tohoku University
• Principal Investigator: Miyazaki Yuzuru 東北大学, 工学(系)研究科(研究院), 教授 (40261606)
• Co-Investigator(Kenkyū-buntansha): HAYASHI Kei 東北大学, 大学院工学研究科, 准教授 (70360625) ; TAKAMATSU Tomohisa 東北大学, 大学院工学研究科, 助教 (60708428)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000); Fiscal Year 2015: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000); Fiscal Year 2014: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000); Fiscal Year 2013: ¥8,190,000 (Direct Cost: ¥6,300,000、Indirect Cost: ¥1,890,000)
• Keywords: 非整合化合物 / 廃熱利用 / 熱電変換 / チムニーラダー型化合物 / 変調構造 / 熱電発電モジュール

Outline of Final Research Achievements

Higher manganese silicide-based chimney-ladder compounds have been prepared and detailed crystal structure of four new phases has been determined. Metallic composition to realize potential thermoelectric (TE) properties has been investigated and the best p-type performance has been achieved for a lightly vanadium-substituted samples. A 3cm x 3cm size TE module has been fabricated and its power generation has been measured under a temperature difference of 400 K. The highest output power of 1.3 W has been recorded, which corresponds to the power density of 1.25 kW/m2.

Research Products

• [Int'l Joint Research] CRISMAT, ENSICAEN(France)
• [Journal Article] Structural Investigation and Indium Substitution in the Thermoelectric Mn2.7Cr0.3Si4Al2-xInx Series (2016)
  • Author(s): T. Barbier, E. Combe, R. Funahashi, T. Takeuchi, M. Kubouchi, Y. Miyazaki, E. Guilmeau, R. O. Suzuki
  • Journal Title: Journal of ELECTRONIC MATERIALS Volume: 45 Issue: 3 Pages: 1992-1999
  • DOI: 10.1007/s11664-016-4365-0
  • NAID: 120005981352
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Crystal structure and thermoelectric properties of the incommensurate chimney-ladder compound RhGeγ (γ ~ 1.293) (2015)
  • Author(s): Y. Miyazaki, T. Nakajo, Y. Kikuchi, and K. Hayashi
  • Journal Title: Journal of Materials Research Volume: 36 Issue: 17 Pages: 2611-2617
  • DOI: 10.1557/jmr.2015.137
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Crystal structure and thermoelectric properties of the incommensurate chimney-ladder compound VGeγ (γ ~ 1.82) (2015)
  • Author(s): H. Hamada, Y. Kikuchi, K. Hayashi, and Y. Miyazaki
  • Journal Title: Journal of Electronic Materials Volume: 45 Issue: 3 Pages: 1365-1368
  • DOI: 10.1007/s11664-015-4036-6
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Effect of interstitial Mg in Mg2+xSi on electrical conductivity and Seebeck coefficient (2015)
  • Author(s): M.Kubouchi, Y. Ogawa, K. Hayashi, T.Takamatsu, Y.Miyazaki
  • Journal Title: Journal of Electronic Materials Volume: 43 Issue: 3 Pages: 1589-1593
  • DOI: 10.1007/s11664-015-4126-5
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] チムニーラダー型マンガンケイ化物の結晶構造と熱電特性 (2015)
  • Author(s): 宮崎 譲
  • Journal Title: 日本金属学会誌 Volume: 79 Pages: 530-537
  • NAID: 130005105619
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] High Temperature X-ray diffraction study on in commensurate composite crystal MnSiγ - (3+1)-dimensional superspace approach (2014)
  • Author(s): Y. Kikuchi, T. Nakajo, K. Hayashi, and Y. Miyazaki
  • Journal Title: J. Alloys Comp. Volume: 616 Pages: 263-267
  • DOI: 10.1016/j.jallcom.2014.07.106
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Fabrication of Multilayer-Type Mn-Si Thermoelectric Device (2014)
  • Author(s): T. Kajitani, T. Ueno, Y. Miyazaki, K. Hayashi, T. Fujiwara, R. Ihara, T. Nakamura, and M. Takakura
  • Journal Title: Journal of Electronic Materials Volume: 43 Issue: 6 Pages: 1993-1999
  • DOI: 10.1007/s11664-013-2933-0
  • Peer Reviewed
• [Presentation] 溶融合成したV置換MnSiγの熱電特性 (2016)
  • Author(s): 濱田陽紀, 林慶, 宮崎譲
  • Organizer: 第63回応用物理学会春季学術講演会
  • Place of Presentation: 東京工業大学（東京都）
  • Year and Date: 2016-03-19
• [Presentation] Incommensurate Nowotny chimney-ladder compounds as potential thermoelectric materials (2015)
  • Author(s): Y. Miyazaki, Y. Kikuchi, H. Hamada, S. Naito, K. Hayashi, and K. Yubuta
  • Organizer: International Conference on Thermoelectric Materials Science 2015 (TMS2015)
  • Place of Presentation: Nagoya University (Nagoya)
  • Year and Date: 2015-11-09
  • Int'l Joint Research / Invited
• [Presentation] Crystal Structure and Thermoelectric Properties of Incommensurate Higher Manganese Silicides (2015)
  • Author(s): Y. Miyazaki, Y. Kikuchi, H. Hamada, K. Hayashi, and K. Yubuta
  • Organizer: 8th Conference on Aperiodic Crystals (Aperiodic2015)
  • Place of Presentation: Prague, Czech Republic
  • Year and Date: 2015-08-30
  • Int'l Joint Research
• [Presentation] Enhanced thermoelectric performance of higher manganese silicides through the control of valence electron counts (2015)
  • Author(s): Y. Miyazaki, Y. Kikuchi, H. Hamada, S. Naito, K. Hayashi, and K. Yubuta
  • Organizer: 4th Annual International Conference on Thermoelectrics (ICT2015)
  • Place of Presentation: Dresden, Germany
  • Year and Date: 2015-06-28
  • Int'l Joint Research / Invited
• [Presentation] Fabrication and Power Generation of a Silicide-based Thermoelectric Module (2015)
  • Author(s): S. Naito, R. Funahashi, Y. Matsumura, S. Katsuyama, Y. Kikuchi, K. Hayashi, and Y. Miyazaki
  • Organizer: 4th Annual International Conference on Thermoelectrics (ICT2015)
  • Place of Presentation: Dresden, Germany
  • Year and Date: 2015-06-28
• [Presentation] Crystal structure and thermoelectric properties of Nowotny chimney-ladder VGeγ (2015)
  • Author(s): H. Hamada, Y. Kikuchi, K. Hayashi, and Y. Miyazaki
  • Organizer: 4th Annual International Conference on Thermoelectrics (ICT2015)
  • Place of Presentation: Dresden, Germany
  • Year and Date: 2015-06-28
• [Presentation] Enhanced thermoelectric performance of lightly Cr-substituted higher manganese silicides (2015)
  • Author(s): Y. Miyazaki, Y. Kikuchi, and K. Hayashi
  • Organizer: The 1st International Conference on Microstructure and Property of Materials (MPM-2015)
  • Place of Presentation: Hangzhou, China
  • Year and Date: 2015-05-26
  • Int'l Joint Research / Invited
• [Presentation] Nowotny Chimney-ladder Higher Manganese Silicides as Potential Thermoelectric Compounds (2015)
  • Author(s): Y. Miyazaki, Y. Kikuchi, and K. Hayashi
  • Organizer: Energy Materials Nanotechnology Phuket 2015 (EMN Phuket 2015)
  • Place of Presentation: Phuket, Thailand
  • Year and Date: 2015-05-04
  • Int'l Joint Research / Invited
• [Presentation] Chimney-ladder型MnSiγ相における遷移金属の微量置換効果 (2015)
  • Author(s): 宮崎 譲, 菊池祐太, 濱田陽紀, 林 慶
  • Organizer: 第62回応用物理学会春季学術講演会
  • Place of Presentation: 東海大学（神奈川県・平塚市）
  • Year and Date: 2015-03-11 – 2015-03-14
• [Presentation] Chimney-Ladder 型化合物VGeγの合成と熱電特性 (2014)
  • Author(s): 濱田陽紀, 菊池祐太, 林 慶, 宮﨑 讓
  • Organizer: 第69回応用物理学会東北支部学術講演会
  • Place of Presentation: 東北大学（宮城県・仙台市）
  • Year and Date: 2014-12-04 – 2014-12-05
• [Presentation] Incommensurate compounds as potential thermoelectric materials (2014)
  • Author(s): Y. Miyazaki, Y. Kikuchi, K. Hayashi
  • Organizer: Invited lecture, Faculty of Engineering, University of Malaya
  • Place of Presentation: Kuala Lumpur, Malaysia
  • Year and Date: 2014-09-22 – 2014-09-25
  • Invited
• [Presentation] Chimney-ladder 型 MnSiγにおける V 置換効果 (2014)
  • Author(s): 菊池祐太, 宮﨑 讓, 中條隆貴, 林 慶
  • Organizer: 第75回応用物理学会秋季学術講演会
  • Place of Presentation: 北海道大学（北海道・札幌市）
  • Year and Date: 2014-09-17 – 2014-09-20
• [Presentation] Nowotny chimney-ladder compounds as potential thermoelectric materials (2014)
  • Author(s): Y. Miyazaki, Y. Kikuchi, T. Nakajo, K. Hayashi
  • Organizer: 5th International Congress on Ceramics (ICC5)
  • Place of Presentation: Beijing, China
  • Year and Date: 2014-08-17 – 2014-08-21
  • Invited
• [Presentation] Valence Electron Control on the Incommensurate Higher Manganese Silicides (2014)
  • Author(s): Y. Miyazaki, Y. Kikuchi, K. Hayashi and K. Yubuta
  • Organizer: International conference and summer school on advanced silicide technology 2014 (ICSS-SILICIDE2014)
  • Place of Presentation: Tokyo University of Science (Tokyo, Katsushika-ku)
  • Year and Date: 2014-07-19 – 2014-07-21
  • Invited
• [Presentation] Effects of Vanadium Substitution on the Crystal Structure and Thermoelectric Properties of Higher Manganese Silicide (2014)
  • Author(s): Y. Kikuchi, T. Nakajo, K. Hayashi, K. Yubuta, Y. Miyazaki
  • Organizer: 6th Forum on New Materials (CIMTEC2014)
  • Place of Presentation: Montecatini, Italy
  • Year and Date: 2014-06-15 – 2014-06-20
• [Presentation] チムニーラダー型化合物MGeγ (M = Rh, Ir) の結晶構造と熱電特性
  • Author(s): 宮﨑 讓、中條隆貴、菊池祐太、林慶
  • Organizer: 第61回応用物理学会春季学術講演会
  • Place of Presentation: 青山学院大学相模原キャンパス
• [Presentation] チムニーラダー型RhGeγ(γ ～ 1.294) の合成と熱電特性
  • Author(s): 中條 隆貴, 菊池 祐太, 林 慶, 宮﨑 讓
  • Organizer: 第68回応用物理学会東北支部学術講演会
  • Place of Presentation: 山形大学米沢キャンパス
• [Book] Materials Aspect of Thermoelectricity, CRC Handbook (2016)
  • Author(s): Yuzuru Miyazaki
  • Total Pages: 12
  • Publisher: CRC Press, Taylor & Francis
• [Book] Electronic Journal 別冊「2015熱電変換材料＆デバイス技術大全」 (2014)
  • Author(s): 宮﨑 讓
  • Total Pages: 106
  • Publisher: （株）電子ジャーナル