| 講演抄録/キーワード |
| 講演名 |
2012-02-07 14:35
KFM observation of individual dopant potentials and electron charging ○Roland Nowak・Miftahul Anwar・Daniel Moraru・Takeshi Mizuno(Shizuoka Univ.)・Ryszard Jablonski(Warsaw Univ. of Tech.)・Michiharu Tabe(Shizuoka Univ.) ED2011-144 SDM2011-161 |
| 抄録 |
(和) |
We utilize Kelvin probe force microscope (KFM) to measure surface potential of thin channel of nanoscale field effect transistor and characterize the effect of electron injection. At low temperature, we observe that potentials of individual dopants disappear in digital manner, which corresponds to single-electron trapping by a donor. At room temperature, on the other hand, we conclude from the KFM observations that dopants potentials are continuously screened by non-localized electrons. Both types of screening mechanisms are correlated with transport mechanisms, i.e. electron tunneling through donors at low temperature and drift-diffusion current at room temperature. |
| (英) |
We utilize Kelvin probe force microscope (KFM) to measure surface potential of thin channel of nanoscale field effect transistor and characterize the effect of electron injection. At low temperature, we observe that potentials of individual dopants disappear in digital manner, which corresponds to single-electron trapping by a donor. At room temperature, on the other hand, we conclude from the KFM observations that dopants potentials are continuously screened by non-localized electrons. Both types of screening mechanisms are correlated with transport mechanisms, i.e. electron tunneling through donors at low temperature and drift-diffusion current at room temperature. |
| キーワード |
(和) |
Kelvin Probe Force Microscope / silicon-on-insulator field-effect transistor / single-electron charging / / / / / |
| (英) |
Kelvin Probe Force Microscope / silicon-on-insulator field-effect transistor / single-electron charging / / / / / |
| 文献情報 |
信学技報, vol. 111, no. 425, ED2011-144, pp. 13-18, 2012年2月. |
| 資料番号 |
ED2011-144 |
| 発行日 |
2012-01-31 (ED, SDM) |
| ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| PDFダウンロード |
ED2011-144 SDM2011-161 |
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