The electronic states originated from structural defects in single-walled carbon nanotubes

• Project/Area Number: 25400331
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics I
• Research Institution: Konan University
• Principal Investigator: Ichida Masao 甲南大学, 理工学部, 教授 (30260590)
• Co-Investigator(Kenkyū-buntansha): TAMAO Aoki 甲南大学, 理工学部, 教授 (80283034)
• Co-Investigator(Renkei-kenkyūsha): YASUMITSU Miyata 首都大学東京大学院, 理学研究科, 准教授 (80547555) ; CHIHIRO Itoh 首都大学東京大学院, 理学研究科, 教授 (60211744) ; YUKA Ikemoto 高輝度光科学研究センター, 利用研究促進部門, 主幹研究員 (70344398)
• Research Collaborator: KATSUNORI Nagao ; YUSUKE Minamihata ; GEN Kanno
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2013: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
• Keywords: カーボンナノチューブ / 光学応答 / 赤外光 / プラズモン共鳴

Outline of Final Research Achievements

The effect of e-beam irradiation in absorption and Raman spectra have been measured. By the irradiation of e-beam to SWNTs thin films, the intensity of Raman D-mode increases which is connected to defects increase, and the peak energy of IR absorption bands shift to the higher energy side. The peak energy is proportional to the inverse of G/D ratio. These results indicate that the effective SWNT length decrease by introduced defects, and the origin of infrared band is due to the Plasmon resonance of finite-effective-length SWNT, often called antenna effects.

Research Products

• [Journal Article] Temperature Dependence of Plasmon Resonance in Single-Walled Carbon Nanotubes (2016)
  • Author(s): Takahiro Morimoto, Masao Ichida, Yuka Ikemoto and Toshiya Okazaki
  • Journal Title: Phys. Rev. B Volume: 93 Issue: 19 Pages: 1954091-5
  • DOI: 10.1103/physrevb.93.195409
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] 酸化グラフェンにおける三次非線形光学応答 (2015)
  • Author(s): 南畑侑亮,神野現,松田一成,安藤弘明,市田正夫
  • Organizer: 日本物理学会
  • Place of Presentation: 関西大学千里山キャンパス(大阪府・吹田市)
  • Year and Date: 2015-09-18
• [Presentation] Third-order nonlinear optical properties in graphene oxide (2015)
  • Author(s): Masao Ichida, Gen Kanno, Kazunari Matsuda, Hiroaki Ando
  • Organizer: International Conference on the Science and Applications of Nanotubes
  • Place of Presentation: Nagoya University, Nagoya, Japan
  • Year and Date: 2015-06-30
  • Int'l Joint Research
• [Presentation] e-beam irradiation effects of IR absorption bands in single-walled carbon nanotubes (2015)
  • Author(s): Masao Ichida, Katsunori Nagao, Yuka Ikemoto, Toshiya Okazaki, Yasumitsu Miyata, Akira Kawakami, Hiromichi Kataura, Ikurou Umezu, Hiroaki Ando
  • Organizer: Workshop on Nanotube Optics and Nanospectroscopy
  • Place of Presentation: Banz Monastery, Germany
  • Year and Date: 2015-06-03
  • Int'l Joint Research
• [Presentation] e-beam irradiation effects of IR absorption bands in single-walled carbon nanotubes (2015)
  • Author(s): Masao Ichida, Katsunori Nagao, Yuka Ikemoto, Toshiya Okazaki, Yasumitsu Miyata, Akira Kawakami, Hiromichi Kataura, Ikurou Umezu, Hiroaki Ando
  • Organizer: Workshop on Nanotube Optics and Nanospectroscopy
  • Place of Presentation: Kloster Banz (Germany)
  • Year and Date: 2015-05-31 – 2015-06-05
• [Presentation] 単層カーボンナノチューブの赤外吸収帯における電子線照射効果とその起源 (2015)
  • Author(s): 市田正夫, 池本夕佳, 宮田耕充, 川上彰, 岡崎俊也, 片浦弘道, 安藤弘明
  • Organizer: 日本物理学会
  • Place of Presentation: 早稲田大学 (東京都・新宿区)
  • Year and Date: 2015-03-21 – 2015-03-24
• [Presentation] 高純度単層カーボンナノチューブ薄膜の赤外吸収スペクトルにおける電子線照射効果とその起源 (2014)
  • Author(s): 市田正夫, 池本夕佳, 宮田耕充, 川上彰, 岡崎俊也, 片浦弘道, 安藤弘明
  • Organizer: 光物性研究会
  • Place of Presentation: 神戸大学 (兵庫県・神戸市)
  • Year and Date: 2014-12-12 – 2014-12-13
• [Presentation] 金属および半導体単層カーボンナノチューブの赤外吸収帯における紫外線, X線, 電子線照射効果 (2014)
  • Author(s): 市田正夫, 池本夕佳, 宮田耕充, 伊東千尋, 村上俊也, 川上彰, 柳和宏, 片浦弘道, 安藤弘明
  • Organizer: 日本放射光学会
  • Place of Presentation: 広島国際会議場
• [Presentation] UV, X-ray and e-beam irradiation effects of IR absorption bands in single-walled carbon nanotubes (2013)
  • Author(s): Masao Ichida, Yasumitsu Miyata, Chihiro Ito, Toshiya Murakami, Yuka Ikemoto, Akira Kawakami, Kazuhiro Yanagi, Hiromichi Kataura, Hiroaki Ando
  • Organizer: フラーレン・ナノチューブ・グラフェン学会
  • Place of Presentation: 大阪大学豊中キャンパス