Formation of twin superlattice in bulk silicon crystal by crystal growth with controlled grain boundary configuration

• Project/Area Number: 20860003
• Research Category: Grant-in-Aid for Young Scientists (Start-up)
• Allocation Type: Single-year Grants
• Research Field: Applied materials science/Crystal engineering
• Research Institution: Tohoku University
• Principal Investigator: KUTSUKAKE Kentaro Tohoku University, 金属材料研究所, 助教 (00463795)
• Project Period (FY): 2008 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥3,289,000 (Direct Cost: ¥2,530,000、Indirect Cost: ¥759,000); Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2008: ¥1,729,000 (Direct Cost: ¥1,330,000、Indirect Cost: ¥399,000)
• Keywords: シリコン / 双晶 / 超格子 / 結晶成長 / 結晶粒界 / 結晶欠陥

Research Abstract

We proposed crystal growth using seed crystals with controlled configuration as a new method to form twin supperlattice in a bulk Si crystal. We found that tilt deviation from the twin configuration and change in the growth rate are important factor in the twin formation. Reduction in dislocation density around the twins is an issue in the future.

Research Products

• [Journal Article] Quantitative analysis of sub-grain boundaries in Si multicrystals and their impact on electrical properties and solar cell performance (2009)
  • Author(s): K. Kutsukake, N. Usami, T. Ohtaniuchi, K. Fujiwara, K. Nakajima
  • Journal Title: J.Appl.Phys. 105 Pages: 44909-44909
  • Peer Reviewed
• [Journal Article] Quantitative analysis of sub-grain boundaries in Si multicrystals and their impact on electrical properties and solar cell performance (2009)
  • Author(s): K. Kutsukake, N. Usami, T. Ohtaniuchi, K. Fujiwara, and K. Nakaiima
  • Journal Title: J. Appl. Phys 105 Pages: 44909-44909
  • Peer Reviewed
• [Presentation] シリコンバルク多結晶の結晶成長過程における欠陥発生機構の解明 (2010)
  • Author(s): 阿部匠朗, 沓掛健太朗, 藤原航三, 宇佐美徳隆, 中嶋一雄
  • Organizer: 第57回応用物理学関係連合講演会
  • Place of Presentation: 平塚
  • Year and Date: 2010-03-18
• [Presentation] 材料科学からの結晶シリコン太陽電池の高効率化へのアプローチ (2010)
  • Author(s): 沓掛健太朗, 宇佐美徳隆, 藤原航三, 森下浩平, 中嶋一雄
  • Organizer: 日本金属学会・日本鉄鋼協会東海支部学術討論会
  • Place of Presentation: 名古屋
  • Year and Date: 2010-02-23
• [Presentation] 材料科学からの結晶シリコン太陽電池の高効率化へのアプローチ (2010)
  • Author(s): 沓掛健太朗、宇佐美徳隆、藤原航三、森下浩平、中嶋一雄
  • Organizer: 日本金属学会・日本鉄鋼協会東海支部学術討論会
  • Place of Presentation: 名古屋大学(名古屋)
• [Presentation] シリコンバルク多結晶の結晶成長過程における欠陥発生機構の解明 (2010)
  • Author(s): 阿部匠朗、沓掛健太朗、藤原航三、宇佐美徳隆、中嶋一雄
  • Organizer: 第57回応用物理学関係連合講演会
  • Place of Presentation: 東海大学(平塚)
• [Presentation] 太陽電池用バルク多結晶シリコンの結晶成長過程における欠陥発生 (2009)
  • Author(s): 沓掛健太朗, 高橋勲, 宇佐美徳隆, 藤原航三, 中嶋一雄
  • Organizer: 第39回結晶成長国内会議 (NCCG-39)
  • Place of Presentation: 名古屋
  • Year and Date: 2009-11-14
• [Presentation] Quantitative Analysis of Defects and Microstructures in Si Multicrystals Using X-ray Diffraction (2009)
  • Author(s): K. Kutsukake, N. Usami, K. Fujiwara, K. Nakajima
  • Organizer: 19th International Photovoltaic Science and Engineering Conference and Exhibition (PVSEC19)
  • Place of Presentation: Jeju, Korea
  • Year and Date: 2009-11-09
• [Presentation] Improvement in quantitative analysis of defects and microstructures in Si multicrystals using X-ray diffraction (2009)
  • Author(s): K. Kutsukake, N. Usami, K. Fujiwara, K. Nakajima
  • Organizer: 2009 International Conference on Solid State Devices and Materials (SSDM2009)
  • Place of Presentation: Sendai, Japan
  • Year and Date: 2009-10-07
• [Presentation] Comprehensive study of defects in Si Multicrystals Toward High-Efficiency Solar Cells (2009)
  • Author(s): K. Kutsukake, N, Usami, K. Fujiwara, K. Nakajima
  • Organizer: 18^<th> International photovoltaic science and engineering conference and exhibition
  • Place of Presentation: Kolkota, India
  • Year and Date: 2009-01-20
• [Presentation] Comprehensive study of defects in Si Multicrystals Toward High-Efficiency Solar Cells (2009)
  • Author(s): K. Kutsukake, N, Usami, K. Fuiiwara, and K. Nakajima
  • Organizer: 18^<th> International photovoltaic science and engineering conference and exhibition
  • Place of Presentation: Kolkota (India)
  • Year and Date: 2009-01-20
• [Presentation] Quantitative Analysis of Defects and Microstructures in Si Multicrystals Using X-ray Diffraction (2009)
  • Author(s): 沓掛健太朗, 宇佐美徳隆, 藤原航三, 中嶋一雄
  • Organizer: 19th International Photovoltaic Science and Engineering Conference and Exhibition(PVSEC19)
  • Place of Presentation: 済州(韓国)
• [Presentation] Improvement in quantitative analysis of defects and microstructures in Si multicry stals using X-ray diffraction (2009)
  • Author(s): 沓掛健太朗, 宇佐美徳隆, 藤原航三, 中嶋一雄
  • Organizer: 2009 International Conference on Solid State Devices and Materials(SSDM2009)
  • Place of Presentation: 仙台
• [Presentation] 太陽電池用バルク多結晶シリコンの結晶成長過程における欠陥発生 (2009)
  • Author(s): 沓掛健太朗、高橋勲、宇佐美徳隆、藤原航三、中嶋一雄
  • Organizer: 第39回結晶成長国内会議(NCCG-39)
  • Place of Presentation: 名古屋大学(名古屋)
• [Presentation] On the generation mechanism of sub-grain boundaries during directional growth of Si bulk multicrystal (2008)
  • Author(s): K. Kutsukake, N. Usami, K. Fujiwara, K. Nakajima
  • Organizer: 23rd European Photovoltaic Solar Energy Conference and Exhibition
  • Place of Presentation: Velencia, Spain
  • Year and Date: 2008-09-03
• [Presentation] On the generation mechanism of sub-grain boundaries during directional growth of Si bulk multicrvstal (2008)
  • Author(s): K. Kutsukake, N. Usami, K. Fujiwara, and K. Nakajima
  • Organizer: 23rd European Photovoltaic Solar Energy Conference and Exhibition
  • Place of Presentation: Valencia (Spain)
  • Year and Date: 2008-09-03
• [Presentation] 結晶Si太陽電池の高効率化へ向けたSiバルク多結晶中亜粒界の総合研究 (2008)
  • Author(s): 沓掛健太朗, 大谷内毅, 宇佐美徳隆, 藤原航三, 中嶋一雄
  • Organizer: 第5回次世代の太陽光発電シンポジウム
  • Place of Presentation: 宮崎市
  • Year and Date: 2008-06-26
• [Presentation] 結晶Si太陽電池の高効率化へ向けたSiバルク多結晶中亜粒界の総合研究 (2008)
  • Author(s): 沓掛健太朗, 大谷内毅, 宇佐美徳隆, 藤原航三, 中嶋一雄
  • Organizer: 第5回次世代の太陽光発電シンポジウム
  • Place of Presentation: 宮崎
  • Year and Date: 2008-06-26
• [Presentation] Comprehensive research of sub-grain boundaries in Si bulk multicrystal for solar cells (2008)
  • Author(s): K. Kutsukake, T. Ohtaniuchi, N. Usami, K. Fujiwara, K. Nakajima
  • Organizer: The Fourth Asian Conference on Crystal Growth and Crystal Technology (CGCT-4)
  • Place of Presentation: Sendai, Japan
  • Year and Date: 2008-05-22
• [Presentation] Comprehensive research of sub-grain boundaries in Si bulk multicrystal for solar cells (2008)
  • Author(s): K.Kutsukake, T. Ohtaniuchi, N. Usami, K. Fujiwara, and K. Nakaiima
  • Organizer: The Fourth Asian Conference on Crystal Growth and Crystal Technology (CGCT-4)
  • Place of Presentation: 仙台
  • Year and Date: 2008-05-22