DOI | Resolve DOI: https://doi.org/10.1088/0957-4484/25/33/335303 |
---|
Author | Search for: Benkouider, A.; Search for: Ronda, A.; Search for: Gouyé, A.; Search for: Herrier, C.; Search for: Favre, L.; Search for: Lockwood, D. J.1; Search for: Rowell, N. L.1; Search for: Delobbe, A.; Search for: Sudraud, P.; Search for: Berbezier, I. |
---|
Affiliation | - National Research Council of Canada. Measurement Science and Standards
|
---|
Format | Text, Article |
---|
Subject | nanowires (NWs); ordering; molecular beam epitaxy (MBE); selective growth; focused ion beam (FIB) patterning; photoluminescence |
---|
Abstract | Selective growth and self-organization of silicon-germanium (SiGe) nanowires (NWs) on focused ion beam (FIB) patterned Si(111) substrates is reported. In its first step, the process involves the selective synthesis of Au catalysts in SiO2-free areas; its second step involves the preferential nucleation and growth of SiGe NWs on the catalysts. The selective synthesis process is based on a simple, room-temperature reduction of gold salts (Au3+Cl?/4 ) in aqueous solution, which provides well-organized Au catalysts. By optimizing the reduction process, we are able to generate a bidimensional regular array of Au catalysts with self-limited sizes positioned in SiO2 -free windows opened in a SiO /Si2 (111) substrate by FIB patterning. Such Au catalysts subsequently serve as preferential nucleation and growth sites of well-organized NWs. Furthermore, these NWs with tunable position and size exhibit the relevant features and bright luminescence that would find several applications in optoelectronic nanodevices. |
---|
Publication date | 2014 |
---|
In | |
---|
Language | English |
---|
Peer reviewed | Yes |
---|
NPARC number | 21272879 |
---|
Export citation | Export as RIS |
---|
Report a correction | Report a correction (opens in a new tab) |
---|
Record identifier | c1ff37d8-aef1-4549-abea-7d6c8fc544a2 |
---|
Record created | 2014-12-03 |
---|
Record modified | 2020-04-22 |
---|