| Project Area | Carbon nanotube nanoelectronics |
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| Project/Area Number |
19054015
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Tokyo University of Science |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
ICHIDA Masao 甲南大学, 理工学部, 准教授 (30260590)
徳永 英司 東京理科大学, 准教授 (70242170)
千足 昇平 東京理科大学, 助教 (50434022)
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| Co-Investigator(Renkei-kenkyūsha) |
TOKUNAGA Eiji 東京理科大学, 理学部, 准教授 (70242170)
CHIASHI Shohei 東京大学, 大学院・工学系研究科, 助教 (50434022)
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| Project Period (FY) |
2007 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥110,800,000 (Direct Cost: ¥110,800,000)
Fiscal Year 2011: ¥14,000,000 (Direct Cost: ¥14,000,000)
Fiscal Year 2010: ¥19,500,000 (Direct Cost: ¥19,500,000)
Fiscal Year 2009: ¥31,100,000 (Direct Cost: ¥31,100,000)
Fiscal Year 2008: ¥41,800,000 (Direct Cost: ¥41,800,000)
Fiscal Year 2007: ¥4,400,000 (Direct Cost: ¥4,400,000)
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| Keywords | カーボンナノチューブ / 光物性 / フォトルミネッセンス / 非線形応答 / 緩和ダイナミクス / ナノデバイス / 非線形光学応答 / 水吸着 / 非線光学応答 / 位相緩和時間 |
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| Research Abstract |
Strongly correlated electron-hole pairs (excitons) play a crucial role in photoemission from single-walled carbon nanotubes (SWNTs) due to their one-dimensionality. We have studied the effects of environment and defects on photoemission from SWNTs by using laser-induced photoluminescence spectroscopy of individual SWNT, and measuring nonlinear optical responses and temporal responses of SWNT bundles. Through the analysis of photoluminescence, we elucidated the interactions between SWNTs and molecules such as ethanol and water, and the change of emission states owing to defects. We also obtained fundamental optical properties of SWNTs including third-order nonlinear susceptibility, relaxation times of electronic distribution and phase, and infrared absorbance.
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