ｎ型、ｐ型不純物同時ドープコロイド状シリコンナノ結晶の開発と基礎物性解明

• Project/Area Number: 14J03120
• Research Category: Grant-in-Aid for JSPS Fellows
• Allocation Type: Single-year Grants
• Section: 国内
• Research Field: Nanomaterials engineering
• Research Institution: Kobe University
• Principal Investigator: 杉本 泰 神戸大学, 工学研究科, 特別研究員(PD)
• Project Period (FY): 2014-04-25 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥3,500,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥300,000); Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2015: ¥1,000,000 (Direct Cost: ¥1,000,000); Fiscal Year 2014: ¥1,200,000 (Direct Cost: ¥1,200,000)
• Keywords: シリコン / ナノ結晶 / ドーピング / バイオフォトニクス / ナノ粒子 / プラズモン / 半導体ナノ結晶

Outline of Annual Research Achievements

本年度は、シリコンナノ結晶コロイドの基礎物性解明及び大面積電子デバイス・バイオフォトニクス応用を念頭に研究を行った。不純物ドープシリコンナノ結晶の基礎物性解明の一環として、(i) ３次元アトムプローブトモグラフィー法による原子スケールでの不純物分布の解明、(ii) 単一シリコンナノ結晶の発光特性解明に関する研究を行った。さらに、バイオ応用を見据えて、(iii) 生体分子を用いたシリコンナノ結晶-プラズモニックナノ粒子複合体形成、(iv) シリコンナノ結晶を用いたバイオイメージング応用実証に関する研究を行った。
(i) に関して、ニューサウスウェールズ大学・シドニー大学と共同で３次元アトムプローブによるシリコンナノ結晶内部の不純物分布を明らかにし、その粒径依存性や不純物の偏析状態を評価した。(ii) について、顕微分光法を用いて単一の不純物ドープシリコンナノ結晶の発光特性を評価した。これらの研究により、不純物ドープシリコンナノ結晶の構造及び発光起源が不純物をドープしていないナノ結晶と大きく異なることを明らかにした。
(iii) に関して、シリコンナノ結晶表面をアミノ基、チオール基で修飾し、DNAはハイブリダイゼーションにより金ナノ粒子と結合した。複合体は3-4倍の発光強度を示した。(iv)に関して、シリコンナノ結晶と骨芽細胞を24-48時間培養し、その毒性評価・発光特性評価を行った。シリコンナノ結晶は非常に毒性が低く、細胞内で長時間安定して近赤外発光を示すことを明らかにした。

Research Progress Status

28年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

28年度が最終年度であるため、記入しない。

Research Products

• [Journal Article] Silicon Nanocrystal-Noble Metal Hybrid Nanoparticles (2016)
  • Author(s): Hiroshi Sugimoto, Kenji Imakita, and Minoru Fujii
  • Journal Title: Nanoscale Volume: 8 Issue: 21 Pages: 10956-10962
  • DOI: 10.1039/c6nr01747a
  • Peer Reviewed
• [Journal Article] All-Inorganic Colloidal Silicon Nanocrystals-Surface Modification by Boron and Phosphorus Co-Doping (2016)
  • Author(s): Minoru Fujii, Hiroshi Sugimoto, and Kenji Imakita
  • Journal Title: Nanotechnology Volume: 27 Issue: 26 Pages: 1-20
  • DOI: 10.1088/0957-4484/27/26/262001
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] The Impact of Doped Silicon Quantum Dots on Human Osteoblasts (2016)
  • Author(s): Lucie Ostrovska, Antonin Broz, Anna Fucikova, Tereza Belinova, Hiroshi Sugimoto, Takashi Kanno, Minoru Fujii, Jan Valenta, and Marie Hubalek Kalbacova
  • Journal Title: RSC Advances Volume: 6 Issue: 68 Pages: 63403-63413
  • DOI: 10.1039/c6ra14430f
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] DNA Assembly of Silicon Quantum Dots / Gold Nanoparticle Nanocomposites (2016)
  • Author(s): Asuka Inoue, Hiroshi Sugimoto, Hidenobu Yaku, and Minoru Fujii
  • Journal Title: RSC Advances Volume: 6 Issue: 68 Pages: 63933-63939
  • DOI: 10.1039/c6ra13565j
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Atom Probe Tomography Analysis of Boron and/or Phosphorus Distribution in Doped Silicon Nanocrystals (2016)
  • Author(s): Keita Nomoto, Hiroshi Sugimoto, Andrew Breen, Anna Ceguerra, Takashi Kanno, Simon Ringer,Ivan Wurfl,Gavin Conibeer, and Minoru Fujii
  • Journal Title: The Journal of Physical Chemistry C Volume: 120 Issue: 31 Pages: 17845-17852
  • DOI: 10.1021/acs.jpcc.6b06197
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Single-Dot Spectroscopy of Boron and Phosphorus Codoped Silicon Quantum dots (2016)
  • Author(s): Takashi Kanno, Hiroshi Sugimoto, Anna Fucikova, Jan Valenta, and Minoru Fujii
  • Journal Title: Journal of Applied Physics Volume: 120 Issue: 16 Pages: 1-6
  • DOI: 10.1063/1.4965986
  • NAID: 120005898582
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Controlling Energy Transfer in Silicon Quantum Dot Assemblies Made from All-Inorganic Colloidal Silicon Quantum Dots (2016)
  • Author(s): Hiroshi Sugimoto, Kenta Furuta, and Minoru Fujii
  • Journal Title: The Journal of Physical Chemistry C Volume: 120 Issue: 42 Pages: 24469-24475
  • DOI: 10.1021/acs.jpcc.6b08423
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Surface Structure and Current Transport Property of Boron and Phosphorous Co-doped Silicon Nanocrystals (2016)
  • Author(s): Masato Sasaki, Shinya Kano, Hiroshi Sugimoto, Kenji Imakita, and Minoru Fujii
  • Journal Title: The Journal of Physical Chemistry C Volume: 120 Issue: 1 Pages: 195-200
  • DOI: 10.1021/acs.jpcc.5b05604
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Doping Efficiency and Confinement of Donors in Embedded and Free Standing Si Nanocrystals (2016)
  • Author(s): Antonio J. Almeida, Hiroshi Sugimoto, Minoru Fujii, Martin S. Brandt, Martin Stutzmann, Rui N. Pereira
  • Journal Title: Physical Review B Volume: 93 Issue: 11 Pages: 115425-115425
  • DOI: 10.1103/physrevb.93.115425
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Size-Dependence of Acceptor and Donor Levels of Boron and Phosphorus Codoped Colloidal Silicon Nanocrystals (2016)
  • Author(s): Yusuke Hori, Shinya Kano, Hiroshi Sugimoto, Kenji Imakita, and Minoru Fujii
  • Journal Title: Nano Letters Volume: 16 Issue: 4 Pages: 2615-2620
  • DOI: 10.1021/acs.nanolett.6b00225
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Size and dopant-concentration dependence of photoluminescence properties of ion-implanted phosphorus- and boron-codoped Si nanocrystals (2015)
  • Author(s): T. Nakamura, S. Adachi, M. Fujii, H. Sugimoto, K. Miura, and S. Yamamoto
  • Journal Title: Phys. Rev. B Volume: 91 Issue: 16 Pages: 165424-165424
  • DOI: 10.1103/physrevb.91.165424
  • Peer Reviewed
• [Journal Article] Broadband Enhancement of Local Density of States Using Silicon-Compatible Hyperbolic Metamaterials (2015)
  • Author(s): Yu Wang, Hiroshi Sugimoto, Sandeep Inampudi, Antonio Capretti, Minoru Fujii, Luca Dal Negro
  • Journal Title: Applied Physics Letters Volume: 106 Issue: 24 Pages: 241105-241105
  • DOI: 10.1063/1.4922874
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Energy Transfer in Silicon Nanocrystal Solids Made from All-Inorganic Colloidal Silicon Nanocrystals (2015)
  • Author(s): Kenta Furuta, Minoru Fujii, Hiroshi Sugimoto, Kenji Imakita
  • Journal Title: The Journal of Physical Chemistry Letters Volume: 6 Issue: 14 Pages: 2761-2766
  • DOI: 10.1021/acs.jpclett.5b01067
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Plasmon-Enhanced Emission Rate of Silicon Nanocrystals in Gold Nanorod Composites (2015)
  • Author(s): Hiroshi Sugimoto, Tianhong Chen, Ren Wang, Minoru Fujii, Bjoern M. Reinhard, Luca Dal Negro
  • Journal Title: ACS Photonics Volume: 2 Issue: 9 Pages: 1298-1305
  • DOI: 10.1021/acsphotonics.5b00233
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Surface Plasmon-Enhanced Luminescence of Silicon Quantum Dots in Gold Nanoparticle Composites (2015)
  • Author(s): Asuka Inoue, Minoru Fujii, Hiroshi Sugimoto, Kenji Imakita
  • Journal Title: The Journal of Physical Chemistry C Volume: 119 Issue: 44 Pages: 25108-25113
  • DOI: 10.1021/acs.jpcc.5b08105
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Growth of Novel Boron-Rich Nanocrystals from Oxygen-Deficient Borophosphosilicate Glasses for Boron Neutron Capture Therapy (2015)
  • Author(s): Hiroshi Sugimoto, Kenji Imakita, Minoru Fujii
  • Journal Title: RSC Advances Volume: 5 Issue: 119 Pages: 98248-98253
  • DOI: 10.1039/c5ra18500a
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Size-Controlled Growth of Cubic Boron Phosphide Nanocrystals (2015)
  • Author(s): Hiroshi Sugimoto, Minoru Fujii, Kenji Imakita
  • Journal Title: RSC Advances Volume: 5 Issue: 11 Pages: 8427-8431
  • DOI: 10.1039/c4ra13530j
  • Peer Reviewed / Open Access
• [Journal Article] Colloidal Silicon Germanium Alloy Nanocrystals with High Boron and Phosphorus Concentration Hydrophilic Shell (2014)
  • Author(s): Takashi Kanno, Minoru Fujii, Hiroshi Sugimoto, Kenji Imakita,
  • Journal Title: Journal of Materials Chemistry C Volume: 2 Issue: 28 Pages: 5644-5650
  • DOI: 10.1039/c4tc00511b
  • Peer Reviewed
• [Journal Article] Synthesis of boron and phosphorus codoped all-inorganic colloidal silicon nanocrystals from hydrogen silsesquioxane (2014)
  • Author(s): Hiroshi Sugimoto, Minoru Fujii, Kenji Imakita
  • Journal Title: Nanoscale Volume: 6 Issue: 21 Pages: 12354-12359
  • DOI: 10.1039/c4nr03857f
  • Peer Reviewed
• [Presentation] Atom Probe Tomographyによる不純物ドープシリコンナノ結晶の構造評価 (2017)
  • Author(s): 杉本 泰, 野元 恵太, Simon P. Ringer, Gavin Conibeer, 藤井 稔
  • Organizer: 第64回応用物理学会春季学術講演会
  • Place of Presentation: パシフィコ横浜、横浜
  • Year and Date: 2017-03-14
• [Presentation] Control of Light Emission from Silicon Quantum Dots Coupled to Plasmonic Nanoantennas (2016)
  • Author(s): Hiroshi Sugimoto, Shiho Yashima and Minoru Fujii
  • Organizer: 2016 Materials Research Society Fall Meeting
  • Place of Presentation: Boston, USA
  • Year and Date: 2016-11-27
  • Int'l Joint Research
• [Presentation] Synthesis of silicon-noble metal hybrid nanoparticle (2016)
  • Author(s): Hiroshi Sugimoto, Kenji Imakita, and Minoru Fujii
  • Organizer: European Materials Research Society, 2016 Spring Meeting
  • Place of Presentation: Lille, France
  • Year and Date: 2016-05-02
  • Int'l Joint Research
• [Presentation] Silicon Nanocrystal-Based Metal-Semiconductor Hybrid Nanoparticles (2016)
  • Author(s): Hiroshi Sugimoto, Ren Wang, Luca Dal Negro, Bjoern Reinhard, Minoru Fujii
  • Organizer: Materials Research Society 2016 Spring Meeting
  • Place of Presentation: Phoenix, Arizona, USA
  • Year and Date: 2016-03-28
  • Int'l Joint Research
• [Presentation] 金ナノロッド―シリコン量子ドット複合体の発光特性 (2016)
  • Author(s): 杉本 泰，藤井 稔, Tianhong Chen, Ren Wang, Bjorn M. Reinhard, Luca Dal Negro
  • Organizer: 第６３回応用物理学会春季学術講演会
  • Place of Presentation: 東京工業大学大岡山キャンパス
  • Year and Date: 2016-03-19
• [Presentation] Synthesis of n- and/or p-type Impurity Doped Silicon Nanocrystals from Hydrogen Silsesquioxane (2014)
  • Author(s): Hiroshi Sugimoto, Kenji Imakita, Minoru Fujii
  • Organizer: 2014 MRS Fall Meeting
  • Place of Presentation: Boston, USA
  • Year and Date: 2014-11-30 – 2014-12-05
• [Book] Micro- and Nanophotonic Technologies (2017)
  • Author(s): Patrick Meyrueis, Kazuaki Sakoda, Marcel Van de Voorde
  • Publisher: Wiley