Abstract
Zero-and one-dimensional metal nanocrystals were successfully fabricated with accurate control in size, shape, and position on semiconductor surfaces by using a novel in situ fabrication method of the nanocrystal with a biasing tungsten tip in transmission electron microscopy. The dominant mechanism of nanocrystal formation was identified mainly as local Joule heating-assisted electromigration through the direct observation of formation and growth processes of the nanocrystal. This method was applied to extracting metal atoms with an exceedingly faster growth rate (∼105 atoms/s) from a metal-oxide thin film to form a metal nanocrystal with any desired size and position. By real-time observation of the microstructure and concurrent electrical measurements, it was found that the nanostructure formation can be completely controlled into various shapes such as zero-dimensional nanodots and one-dimensional nanowires/nanorods.
| Original language | English |
|---|---|
| Pages (from-to) | 2999-3004 |
| Number of pages | 6 |
| Journal | ACS Nano |
| Volume | 4 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2010 Jun 22 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Engineering(all)
- Physics and Astronomy(all)
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Direct fabrication of zero-and one-dimensional metal nanocrystals by thermally assisted electromigration. / Yuk, Jong Min; Kim, Kwanpyo; Lee, Zonghoon; Watanabe, Masashi; Zettl, A.; Kim, Tae Whan; No, Young Soo; Choi, Won Kook; Lee, Jeong Yong.
In: ACS Nano, Vol. 4, No. 6, 22.06.2010, p. 2999-3004.Research output: Contribution to journal › Article
TY - JOUR
T1 - Direct fabrication of zero-and one-dimensional metal nanocrystals by thermally assisted electromigration
AU - Yuk, Jong Min
AU - Kim, Kwanpyo
AU - Lee, Zonghoon
AU - Watanabe, Masashi
AU - Zettl, A.
AU - Kim, Tae Whan
AU - No, Young Soo
AU - Choi, Won Kook
AU - Lee, Jeong Yong
PY - 2010/6/22
Y1 - 2010/6/22
N2 - Zero-and one-dimensional metal nanocrystals were successfully fabricated with accurate control in size, shape, and position on semiconductor surfaces by using a novel in situ fabrication method of the nanocrystal with a biasing tungsten tip in transmission electron microscopy. The dominant mechanism of nanocrystal formation was identified mainly as local Joule heating-assisted electromigration through the direct observation of formation and growth processes of the nanocrystal. This method was applied to extracting metal atoms with an exceedingly faster growth rate (∼105 atoms/s) from a metal-oxide thin film to form a metal nanocrystal with any desired size and position. By real-time observation of the microstructure and concurrent electrical measurements, it was found that the nanostructure formation can be completely controlled into various shapes such as zero-dimensional nanodots and one-dimensional nanowires/nanorods.
AB - Zero-and one-dimensional metal nanocrystals were successfully fabricated with accurate control in size, shape, and position on semiconductor surfaces by using a novel in situ fabrication method of the nanocrystal with a biasing tungsten tip in transmission electron microscopy. The dominant mechanism of nanocrystal formation was identified mainly as local Joule heating-assisted electromigration through the direct observation of formation and growth processes of the nanocrystal. This method was applied to extracting metal atoms with an exceedingly faster growth rate (∼105 atoms/s) from a metal-oxide thin film to form a metal nanocrystal with any desired size and position. By real-time observation of the microstructure and concurrent electrical measurements, it was found that the nanostructure formation can be completely controlled into various shapes such as zero-dimensional nanodots and one-dimensional nanowires/nanorods.
UR - http://www.scopus.com/inward/record.url?scp=77955916559&partnerID=8YFLogxK
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U2 - 10.1021/nn901674p
DO - 10.1021/nn901674p
M3 - Article
VL - 4
SP - 2999
EP - 3004
JO - ACS Nano
JF - ACS Nano
SN - 1936-0851
IS - 6
ER -