Precise Synthesis and Optical Properties of Silicon Nanoclusters

• Project/Area Number: 21685003
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Physical chemistry
• Research Institution: Tokyo University of Science
• Principal Investigator: NEGISHI Yuichi 東京理科大学, 理学部第一部・応用化学科, 講師 (20332182)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥23,010,000 (Direct Cost: ¥17,700,000、Indirect Cost: ¥5,310,000); Fiscal Year 2011: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2010: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2009: ¥13,520,000 (Direct Cost: ¥10,400,000、Indirect Cost: ¥3,120,000)
• Keywords: シリコンナノクラスター / 発光特性 / 高分解能サイズ分離 / 化学組成 / シリコンクラスター / 可視発光 / サイズ分離 / ゲル浸透クロマトグラフィー / 質量分析 / マトリックス / 高分解能分離 / 高速液体クロマトグラフィー / 紫外可視吸収スペクトル / 蛍光スペクトル

Research Abstract

We have succeeded in the size selective synthesis of the luminescent silicon nanoclusters. A mixture of silicon nanoclusters were successfully size-separated by a high-performance liquid chromatography(HPLC) system equipped with a stainless-steel column. Optical absorbance and photoluminescence spectroscopies revealed that band gap of the silicon nanoclusters increases with the decrease of the size. We also succeeded in the development of the size-separation method of the nanoclusters with the polarity columns.

Research Products

• [Journal Article] Synthesis and the Origin of the Stability of Thiolate-Protected Au_<130> and Au_<187> Clusters (2012)
  • Author(s): Y. Negishi, C. Sakamoto, T. Ohyama, T. Tsukuda
  • Journal Title: J. Phys. Chem. Lett Volume: 3 Pages: 1624-1628
  • Peer Reviewed
• [Journal Article] Synthesis, Stability, and Photoluminescence Property of PdAu_<10>(PPh_3)_8Cl_2 Cluster (2012)
  • Author(s): W. Kurashige, Y. Negishi
  • Journal Title: J. Cluster Science Volume: 23 Pages: 365-374
  • Peer Reviewed
• [Journal Article] Palladium Doping of Magic Gold Cluster Au_<38>(SC_2H_4Ph)_<24>: Formation of Pd_2Au_<36>(SC_2H_4Ph)_<24> with Higher Stability than Au_<38>(SC_2H_4Ph)_<24> (2012)
  • Author(s): Y. Negishi, K. Igarashi, K. Munakata, W. Ohgake, K. Nobusada
  • Journal Title: Chem. Commun. Volume: 48 Pages: 660-662
  • Peer Reviewed
• [Journal Article] Palladium Doping of Magic Gold Cluster Au38 (SC2H4Ph) 24 : Formation of Pd2Au36 (SC2H4Ph) 24 with Higher Stability than Au38 (SC2H4Ph)24 (2012)
  • Author(s): Yuichi Negishi
  • Journal Title: Chemical Communications Volume: 48 Issue: 5 Pages: 660-662
  • DOI: 10.1039/c1cc15765e
  • Peer Reviewed
• [Journal Article] Isolation and Structural Characterization of Octaneselenolate-Protected Au_<25> Cluster (2011)
  • Author(s): Y. Negishi, W. Kurashige, U. Kamimura
  • Journal Title: Langmuir(Letters) Volume: 27 Pages: 12289-12292
  • Peer Reviewed
• [Journal Article] Photoluminescence Dynamics of Organic Molecule-Passivated Si Nanoclusters (2011)
  • Author(s): M. Imamura, J. Nakamura, S. Fujimasa, H. Yasuda, H. Kobayashi, Y. Ne2ishi
  • Journal Title: Eur. Phys. J. D Volume: 63 Pages: 289-292
  • Peer Reviewed
• [Journal Article] Isolation and Structural Characterization of Magic Silver Clusters Protected by 4-(tert-butyl) benzyl Mercaptan (2011)
  • Author(s): Y. Negishi, R. Arai, Y. Niihori, T. Tsukuda
  • Journal Title: Chem Commum. Volume: 47 Pages: 5693-5695
  • Peer Reviewed
• [Journal Article] Isolation and Structural Characterization of Octaneselenolate-Protected Au25 Cluster (2011)
  • Author(s): Yuichi Negishi
  • Journal Title: Langmuir Volume: 27 Issue: 20 Pages: 12289-12292
  • DOI: 10.1021/la203301p
  • Peer Reviewed
• [Journal Article] Isolation and Structural Characterization of Magic Silver Clusters Protected by 4-(tert-butyl) benzyl Mercaptan (2011)
  • Author(s): Yuichi Negishi
  • Journal Title: Chemical Communications Volume: 47 Issue: 20 Pages: 5693-5695
  • DOI: 10.1039/c0cc05587e
  • Peer Reviewed
• [Journal Article] Isolation and Structural Characterization of Magic Silver Clusters Protected by 4-(tert-butyl)benzyl Mercaptan (2011)
  • Author(s): Yuichi Negishi
  • Journal Title: Chem Commun. Volume: 20 Pages: 5693-5695
  • Peer Reviewed
• [Journal Article] Continuous Modulation of Electronic Structure of Stable Thiolate-Protected Au_<25> Cluster by Ag Doping (2010)
  • Author(s): Y. Negishi, T. Iwai, M. Ide
  • Journal Title: Chem. Commun. Volume: 46 Pages: 4713-4715
  • Peer Reviewed
• [Journal Article] Isolation, Structure, and Stability of A Dodecanethiolate-Protected Pd_1Au_<24> Cluster (2010)
  • Author(s): Y. Negishi, W. Kurashige, Y. Niihori, T. Iwasa, K. Nobusada
  • Journal Title: Phys. Chem. Chem. Phys. Volume: 12 Pages: 6219-6225
  • Peer Reviewed
• [Journal Article] Isolation, Structure, and Stability of A Dodecanethiolate-Protected Pd_1Au_<24> Cluster (2010)
  • Author(s): Yuichi Negishi
  • Journal Title: Phys.Chem.Chem.Phys. Volume: 12 Pages: 6219-6225
  • Peer Reviewed
• [Journal Article] Continuous Mudulation of Electronic Structure of Stable Thiolate-Protected Au_<25> Cluster by Ag Doping (2010)
  • Author(s): Yuichi Negishi
  • Journal Title: Chem Commun. Volume: 46 Pages: 4713-4715
  • Peer Reviewed
• [Journal Article] Size Determination of Gold Clusters by Polyacrylamide Gel Electrophoresis in a Large Cluster Region (2009)
  • Author(s): K. Kimura, N. Sugimoto, S. Sato, H. Yao, Y. Negishi, T. Tsukuda
  • Journal Title: J. Phys. Chem. C Volume: 113 Pages: 14076-14082
  • Peer Reviewed
• [Presentation] サブナノスケールの金属クラスターの精密合成と構造・物性及び高機能化 (2012)
  • Author(s): 根崖雄二
  • Organizer: 電気学会「光・量子ビームによるナノダイナミクス応用技術調査専門委員会」講演会
  • Place of Presentation: 東京理科大学神楽坂校舎
  • Year and Date: 2012-06-11
• [Presentation] Isolation and Functionalization of Magic-Numbered Metal Clusters (2012)
  • Author(s): Yuichi Negishi
  • Organizer: Canada-Japan Joint Symposium on Supramolecular Nanometerials Science
  • Place of Presentation: Whistler(Canada)
  • Year and Date: 2012-05-14
• [Presentation] Isolation and Functionalization of Magic Gold Clusters (2012)
  • Author(s): Yuichi Negishi
  • Organizer: Disucussion Meeteing on Noble Metal Clusters
  • Place of Presentation: Indian Institute of Technology, Madras(India)
  • Year and Date: 2012-04-25
• [Presentation] Precision Synthesis and Fundamental Properties of Thiolate-Protected Gold Clusters (2012)
  • Author(s): Yuichi Negishi
  • Organizer: International Conference and Workshop on Nanostructured Ceramics and other Nanomaterials ICWNCN
  • Place of Presentation: University of Delhi(India)
  • Year and Date: 2012-03-15
• [Presentation] Precision Synthesis and Fundamental Properties of Thiolate-Protected Gold Clusters (2012)
  • Author(s): Yuichi Negishi
  • Organizer: International Conference and Workshop on Nanostructured Ceramics and other Nanomaterials ICWNCN
  • Place of Presentation: University of Delhi (India)(招待講演)
  • Year and Date: 2012-03-15
• [Presentation] Isolation and Functionalization of Magic-Numbered Metal Clusters (2012)
  • Author(s): Yuichi Negishi
  • Organizer: Special Seminer in Department of Chemistry
  • Place of Presentation: Indian Institute of Technology, Madras (India)(招待講演)
  • Year and Date: 2012-01-27
• [Presentation] Isolation and Functionalization of Magic-Numbered Metal Clusters (2012)
  • Author(s): Yuichi Negishi
  • Organizer: Special Seminer in Department of Chemistry
  • Place of Presentation: Indian Institute of Technology, Madras(India)
  • Year and Date: 2012-01-25
• [Presentation] 機能性ナノクラスターの創製と応用への展開 (2012)
  • Author(s): 根岸雄一
  • Organizer: 原子炉工学研究所新春セミナー
  • Place of Presentation: 東京工業大学原子炉工学研究所
  • Year and Date: 2012-01-06
• [Presentation] 機能性ナノクラスターの創製と応用への展開 (2012)
  • Author(s): 根岸雄一
  • Organizer: 原子炉工学研究所新春セミナー
  • Place of Presentation: 東京工業大学原子炉工学研究所(招待講演)
  • Year and Date: 2012-01-06
• [Presentation] Isolation and Stractural Characterization of Thiolate-Protected Metal Clusters (2011)
  • Author(s): Yuichi Negishi
  • Organizer: The 14th Asian Chemical Congress 2011
  • Place of Presentation: Bangkok(Thailand)
  • Year and Date: 2011-09-07
• [Presentation] Isolation and Stractural Characterization of Thiolate-Protected Metal Clusters (2011)
  • Author(s): Yuichi Negishi
  • Organizer: The 14th Asian Chemical Congress 2011
  • Place of Presentation: Bangkok (Thailand)(招待講演)
  • Year and Date: 2011-09-07
• [Presentation] Isolation and Functionalization of Magic-Numbered Metal Clusters (2011)
  • Author(s): Yuichi Negishi
  • Organizer: First China-Japan Joint Symposium on Supramolecular Nanomaterial Science
  • Place of Presentation: Nanjing University(China)
  • Year and Date: 2011-06-17
• [Presentation] Isolation and Functionalization of Magic-Numbered Metal Clusters (2011)
  • Author(s): Yuichi Negishi
  • Organizer: First China-Japan Joint Symposium on Supramolecular Nanomaterial Science
  • Place of Presentation: Nanjing University (China)(招待講演)
  • Year and Date: 2011-06-17
• [Presentation] Isolation, Stability, and Optical Properties of Ligand-Protected Bimetal Clusters (2011)
  • Author(s): Yuichi Negishi
  • Organizer: International Symposium on Monolayer-Protected Clusters ISMPC11
  • Place of Presentation: Jyvaslyla(Finland)
  • Year and Date: 2011-06-08
• [Presentation] Isolation, Stability, and Optical Properties of Ligand-Protected Bimetal Clusters (2011)
  • Author(s): Yuichi Negishi
  • Organizer: International Symposium on Monolayer-Protected Clusters ISMPC11
  • Place of Presentation: Jyvaaslyla (Finland)(招待講演)
  • Year and Date: 2011-06-08
• [Presentation] Isolation, Stability, and Optical Properties of Ligand-Protected Bimetal Clusters (2011)
  • Author(s): Yuichi Negishi
  • Organizer: The 91th the Chemical Society of Japan Spring Meeting "Asian International Symposium"
  • Place of Presentation: Kanagawa Univ
  • Year and Date: 2011-03-29
• [Presentation] ゲル浸透クロマトグラフィーによるシリコンクラスターのサイズ分離 (2011)
  • Author(s): 根岸雄一
  • Organizer: 第91回日本化学会春期年会
  • Place of Presentation: 神奈川大学横浜キャンパス
  • Year and Date: 2011-03-29
• [Presentation] Isolation, Stability, and Optical Properties of Ligand-Protected Bimetal Clusters (2011)
  • Author(s): Yuichi Negishi
  • Organizer: 第91回日本化学会春期年会「アジア国際シンポジウム」
  • Place of Presentation: 神奈川大学横浜キャンパス
  • Year and Date: 2011-03-28
• [Presentation] Precise Synthesis and Highl : Functionalization of Magic-Numbered Gold Clusters (2011)
  • Author(s): Yuichi Negishi
  • Organizer: Catalysis Center Seminar
  • Place of Presentation: Ruhr University Bochum(Germany)
  • Year and Date: 2011-01-18
• [Presentation] Precise Synthesis and Highly Functionalization of Magic-Numbered Gold Clusters (2011)
  • Author(s): Yuichi Negishi
  • Organizer: Catalysis Center Seminar
  • Place of Presentation: Ruhr University Bochum (Germany)
  • Year and Date: 2011-01-18
• [Presentation] Precise Synthesis and Characterization of Thiolate-Protected Au_<25-u> M_n,(M=Pd or Au) Bimetallic Clusters (2010)
  • Author(s): Yuichi Negishi
  • Organizer: PACIFICHEM2010
  • Place of Presentation: Sheraton Waikiki(USA)
  • Year and Date: 2010-12-19
• [Presentation] Precise Synthesis and Characterization of Thiolate-Protected Au_<25-n>M_n (M=Pd or Ag) Bimetallic Clusters (2010)
  • Author(s): Yuichi Negishi
  • Organizer: PACIFICHEM2010
  • Place of Presentation: Hilton Hawaiian Village
  • Year and Date: 2010-12-19
• [Presentation] Precise Synthesis and Fundamental Properties of Thiolate-Protected Metal Clusters (2010)
  • Author(s): Yuichi Negishi
  • Organizer: Molecular Photoscience Research Center International Symposium "New Horizons of Cluster Chemistry"
  • Place of Presentation: Kobe Univ
  • Year and Date: 2010-10-10
• [Presentation] Precise Synthesis and Fundamental Properties of Thiolate-Protected Metal Cluster (2010)
  • Author(s): Yuichi Negishi
  • Organizer: Molecular Photoscience Research Center International Symposium
  • Place of Presentation: Kobe University
  • Year and Date: 2010-10-10
• [Presentation] Precise Synthesis and Fundamental Properties of Thiolate-Protected Metal Clusters (2010)
  • Author(s): Yuichi Negishi
  • Organizer: 60th Anniversary Conference on Coordination Chemistry
  • Place of Presentation: Osaka Univ. OSAKA, JAPAN
  • Year and Date: 2010-09-27
• [Presentation] Precise Synthesis and Fundamental Properties of Thiolate-Protected Metal Clusters (2010)
  • Author(s): Yuichi Negishi
  • Organizer: 60th Anniversary Conference on Coordination Chemistry in OSAKA
  • Place of Presentation: Osaka University
  • Year and Date: 2010-09-27
• [Presentation] Photoluminescence Dynamics of Organic Molecule-Passivated Si Nanoclusters (2010)
  • Author(s): Masaki Imamura
  • Organizer: Internal Symposium on Small Particles & Inorganic Clusters (ISSPIC) XV
  • Place of Presentation: Oaxaca (Mexico)
  • Year and Date: 2010-09-15
• [Presentation] 魔法数金クラスターの精密合成と高機能化 (2010)
  • Author(s): 根岸雄一
  • Organizer: 元素科学国際センター有機化学セミナー
  • Place of Presentation: 京都大学化学研究所
  • Year and Date: 2010-06-22
• [Presentation] アルキル基に保護されたシリコンナノクラスターの質量分析 (2010)
  • Author(s): 根岸雄一
  • Organizer: ナノ学会第8回大会
  • Place of Presentation: 分子科学研究所
  • Year and Date: 2010-05-13
• [Presentation] 有機分子表面修飾Siナノクラスターの発光特性 (2010)
  • Author(s): 今村真幸
  • Organizer: ナノ学会第8回大会
  • Place of Presentation: 分子科学研究所
  • Year and Date: 2010-05-13
• [Presentation] 二成分複合金属クラスターの精密合成と構造解析 (2010)
  • Author(s): 根岸雄一
  • Organizer: 第90回日本化学会春期年会
  • Place of Presentation: 近畿大学本部キャンパス
  • Year and Date: 2010-03-26
• [Presentation] 1.5nmの粒径をもつアルキル基保護シリコンクラスターのサイズ選択的合成と化学組成評価 (2009)
  • Author(s): 新堀佳紀
  • Organizer: 19回日本MRS学術シンポジウム
  • Place of Presentation: 横浜情報文化センター
  • Year and Date: 2009-12-08
• [Presentation] チオラート保護金属クラスターの精密合成と界面構造・物性 (2009)
  • Author(s): 根岸雄一
  • Organizer: 第58回高分子討論会
  • Place of Presentation: 熊本大学工学部
  • Year and Date: 2009-09-18
• [Presentation] 安定クラスターの精密合成と高機能化 (2009)
  • Author(s): 根岸雄一
  • Organizer: 第3回超分子若手懇談会
  • Place of Presentation: 晴海グランドホテル
  • Year and Date: 2009-08-27
• [Book] 魔法数金クラスターの高機能化を目指して-異原子のドーピング- (2011)
  • Author(s): 根岸雄一
  • Publisher: C & I Communication
• [Book] 超電導で量る分子の質量一フーリエ変換イオンサイクロトロン共鳴質量分析計 (2011)
  • Author(s): 高谷光、齊藤和徳、根岸雄一
• [Book] 金属と分子集合-最新技術と応用-、金クラスターの精密合成・構造・物性とその高機能化 (2011)
  • Author(s): 根岸雄一
  • Publisher: シーエムシー出版
• [Book] 魔法数金クラスターの高機能化を目指して-異原子のドーピングー (2011)
  • Author(s): 根岸雄一
  • Publisher: C & I Communication
• [Book] 白金の使用量が1/13に?-0.9nmの白金微粒子が示すサイズ特異的触媒能- (2010)
  • Author(s): 根岸雄一
• [Book] 金属と分子集合-最新技術と応用- (2010)
  • Author(s): 根岸雄一
  • Publisher: シー・エム・シー出版
• [Remarks]
  • URL: http://www.rs.kagu.tus.acjp/negishi/ronnbunn.html