講演抄録/キーワード |
講演名 |
2013-02-27 15:40
Individual Dopant Nature in Si Lateral Nano-pn Junctions ○Sri Purwiyanti・Arief Udhiarto(Shizuoka Univ./Univ. Indonesia)・Roland Nowak(Shizuoka Univ./Warsaw Univ. of Tech.)・Daniel Moraru・Takeshi Mizuno(Shizuoka Univ.)・Djoko Hartanto(Univ. Indonesia)・Ryszard Jablonski(Warsaw Univ. of Tech.)・Michiharu Tabe(Shizuoka Univ.) ED2012-132 SDM2012-161 エレソ技報アーカイブへのリンク:ED2012-132 SDM2012-161 |
抄録 |
(和) |
In this work, we report the experimental observation of dopant signature in nanoscale ultra-thin SOI pn junctions. At temperatures below 30 K, we observed current fluctuations as random telegraph signal (RTS) in the dark and under light illumination. In the dark, two levels of RTS have been observed, suggesting that a charge moving as part of diffusion current may be trapped by an ionized dopant in the depletion layer. The RTS under light illumination has been observed only in pn junction devices, but not in pin junction devices, suggesting that the RTS is promoted in pn junctions due to trapping and detrapping of photogenerated carriers by donor-acceptor pair in the depletion layer. Observation of potential fluctuations due to trapping and detrapping events by Kelvin probe force microscopy (KFM) has also been reported. These results illustrate the nature of individual dopants in nanoscale pn junctions and their impact on device characteristics. |
(英) |
In this work, we report the experimental observation of dopant signature in nanoscale ultra-thin SOI pn junctions. At temperatures below 30 K, we observed current fluctuations as random telegraph signal (RTS) in the dark and under light illumination. In the dark, two levels of RTS have been observed, suggesting that a charge moving as part of diffusion current may be trapped by an ionized dopant in the depletion layer. The RTS under light illumination has been observed only in pn junction devices, but not in pin junction devices, suggesting that the RTS is promoted in pn junctions due to trapping and detrapping of photogenerated carriers by donor-acceptor pair in the depletion layer. Observation of potential fluctuations due to trapping and detrapping events by Kelvin probe force microscopy (KFM) has also been reported. These results illustrate the nature of individual dopants in nanoscale pn junctions and their impact on device characteristics. |
キーワード |
(和) |
Nanoscale pn junction / Individual dopant / KFM / RTS / / / / |
(英) |
Nanoscale pn junction / Individual dopant / KFM / RTS / / / / |
文献情報 |
信学技報, vol. 112, no. 446, SDM2012-161, pp. 25-30, 2013年2月. |
資料番号 |
SDM2012-161 |
発行日 |
2013-02-20 (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 |
ED2012-132 SDM2012-161 エレソ技報アーカイブへのリンク:ED2012-132 SDM2012-161 |