| Project/Area Number |
21840029
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics I
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| Research Institution | Nagoya University |
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Principal Investigator |
MIYATA Yasumitsu Nagoya University, 物質科学国際研究センター, 助教 (80547555)
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| Project Period (FY) |
2009 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥2,652,000 (Direct Cost: ¥2,040,000、Indirect Cost: ¥612,000)
Fiscal Year 2010: ¥1,248,000 (Direct Cost: ¥960,000、Indirect Cost: ¥288,000)
Fiscal Year 2009: ¥1,404,000 (Direct Cost: ¥1,080,000、Indirect Cost: ¥324,000)
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| Keywords | カーボンナノチューブ / 電子物性 / 光電子分光 / キャリア移動度 / 薄膜トランジスタ / 電子構造 |
|---|
| Research Abstract |
In this work, we have investigated the electrical structure and transport properties of high-purity metallic and semiconducting single-wall carbon nanotubes (SWCNTs). The photoemission and x-ray absorption responses reveal how the fine structure in the C1s edge and photoemission valence band separately discerns the SWCNT metallic and semiconducting nature. Transport measurement reveals that micrometer-long, highly-pure semiconducting SWCNT thin films show very high carrier mobility of 160cm^2/Vs and on/off current ratio of 10^6. The present results provide an important insight for basic physical properties and device application of SWCNTs.
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