Abstract
The formation of Au nanoclusters in MgO using ion implantation and subsequent annealing was investigated. Approximately 1200 and 1400 Au2+ ions/nm2 were implanted in MgO(100) substrates at 300 and 975 K, respectively. Subsequent annealing in air for 10 h at 1275 K promoted the formation of Au nanostructures in MgO. The sample implanted at 300 K showed severe radiation damage. In addition, two-dimensional plateletlike structures with possible composition of Au and MgO were formed during implantation in the sample that was implanted at 300 K. In contrast, Au implantation at 975 K promoted the nucleation of Au nanostructures during implantation. Subsequent annealing of both samples show three-dimensional clusters in MgO. However, the 975 K implanted sample shows clean, high-quality, single-crystal Au clusters that have an epitaxial relationship to MgO(100).
| Original language | English |
|---|---|
| Pages (from-to) | 1311-1314 |
| Number of pages | 4 |
| Journal | Journal of Materials Research |
| Volume | 19 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 2004 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Materials Science(all)
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Ion-beam synthesis of epitaxial Au nanocrystals in MgO. / Thevuthasan, S.; Shutthanandan, V.; Wang, C. M.; Weber, W. J.; Jiang, W.; Cavanagh, A.; Lian, J.; Wang, L. M.
In: Journal of Materials Research, Vol. 19, No. 5, 05.2004, p. 1311-1314.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Ion-beam synthesis of epitaxial Au nanocrystals in MgO
AU - Thevuthasan, S.
AU - Shutthanandan, V.
AU - Wang, C. M.
AU - Weber, W. J.
AU - Jiang, W.
AU - Cavanagh, A.
AU - Lian, J.
AU - Wang, L. M.
PY - 2004/5
Y1 - 2004/5
N2 - The formation of Au nanoclusters in MgO using ion implantation and subsequent annealing was investigated. Approximately 1200 and 1400 Au2+ ions/nm2 were implanted in MgO(100) substrates at 300 and 975 K, respectively. Subsequent annealing in air for 10 h at 1275 K promoted the formation of Au nanostructures in MgO. The sample implanted at 300 K showed severe radiation damage. In addition, two-dimensional plateletlike structures with possible composition of Au and MgO were formed during implantation in the sample that was implanted at 300 K. In contrast, Au implantation at 975 K promoted the nucleation of Au nanostructures during implantation. Subsequent annealing of both samples show three-dimensional clusters in MgO. However, the 975 K implanted sample shows clean, high-quality, single-crystal Au clusters that have an epitaxial relationship to MgO(100).
AB - The formation of Au nanoclusters in MgO using ion implantation and subsequent annealing was investigated. Approximately 1200 and 1400 Au2+ ions/nm2 were implanted in MgO(100) substrates at 300 and 975 K, respectively. Subsequent annealing in air for 10 h at 1275 K promoted the formation of Au nanostructures in MgO. The sample implanted at 300 K showed severe radiation damage. In addition, two-dimensional plateletlike structures with possible composition of Au and MgO were formed during implantation in the sample that was implanted at 300 K. In contrast, Au implantation at 975 K promoted the nucleation of Au nanostructures during implantation. Subsequent annealing of both samples show three-dimensional clusters in MgO. However, the 975 K implanted sample shows clean, high-quality, single-crystal Au clusters that have an epitaxial relationship to MgO(100).
UR - http://www.scopus.com/inward/record.url?scp=3142684722&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=3142684722&partnerID=8YFLogxK
U2 - 10.1557/JMR.2004.0174
DO - 10.1557/JMR.2004.0174
M3 - Article
AN - SCOPUS:3142684722
VL - 19
SP - 1311
EP - 1314
JO - Journal of Materials Research
JF - Journal of Materials Research
SN - 0884-2914
IS - 5
ER -