2013 Fiscal Year Final Research Report
Basic study on ultra low-power electron transport in compound semiconductor one-dimensional Brownian ratchet
| Project/Area Number |
23651143
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Microdevices/Nanodevices
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| Research Institution | Hokkaido University |
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Principal Investigator |
KASAI Seiya 北海道大学, 情報科学研究科, 准教授 (30312383)
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| Project Period (FY) |
2011 – 2013
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| Keywords | ブラウンラチェット / １次元 / 化合物半導体 / 低エネルギー / 電子輸送 |
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| Research Abstract |
Electron Brownian ratchet device generates coherent current from randomly moving electrons, whose mechanism is inspired by the molecular level process of the mechanical motion in the biological systems. The purpose of this project is to create the electron Brownian ratchet device using a GaAs-based nanowire with multiple asymmetric gates and to demonstrate the current generation. We designed the device on the basis of 3D potential simulation and fabricated it. We succeeded in generation of coherent current by flashing ratchet operation at room temperature. This was the first achievement in the semiconductor-based Brownian ratchet devices.
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