2014 Fiscal Year Final Research Report
Development of functions of organic semiconductors by high-densigty carrier control
| Project/Area Number |
24684023
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Condensed matter physics II
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 有機半導体 |
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| Outline of Final Research Achievements |
Properties of several materials were controlled employing electrical-double-layer transistor, which utilizes strong electric field at interfaces between solid and electrolyte. In particular, a field-effect resistivity change in a resistance of metallic single-walled carbon nanotubes was realized. In situ optical absorption spectroscopic measurements revealed the resistance change is due to a change in a subband number. For organic semiconductors, reductions of electron injection barriers and changes in distributions of trapping levels were realized by controlling metal-semiconductor and insulator-semiconductor interfaces, respectively.
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| Free Research Field |
固体物理
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