Synthesis of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface
Dip-pen nanolithography (DPN) in conjunction with wet chemical etching was used to synthesize a new class of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface. Ag nanostructures were prepared by depositing dot MHA features on Ag-coated Si/SiOx, followed by etching with ferri/fe...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2012
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| Online Access: | https://hdl.handle.net/10356/95374 http://hdl.handle.net/10220/8616 |
| _version_ | 1826123875435413504 |
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| author | Mirkin, Chad A. Zhang, Hua Jin, Rongchao |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Mirkin, Chad A. Zhang, Hua Jin, Rongchao |
| author_sort | Mirkin, Chad A. |
| collection | NTU |
| description | Dip-pen nanolithography (DPN) in conjunction with wet chemical etching was used to synthesize a new class of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface. Ag nanostructures were prepared by depositing dot MHA features on Ag-coated Si/SiOx, followed by etching with ferri/ferrocyanide solution. When these Ag nanostructures are reacted with HAuCl4, electroless plating of Au occurs on the sidewalls of the silver features along with concomitant oxidation of the Ag. This results in the formation of novel open-ended, cylindrical Au−Ag alloy nanostructures. Insight into the mechanism for this process is provided. |
| first_indexed | 2024-10-01T06:11:29Z |
| format | Journal Article |
| id | ntu-10356/95374 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:11:29Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | ntu-10356/953742020-06-01T10:26:38Z Synthesis of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface Mirkin, Chad A. Zhang, Hua Jin, Rongchao School of Materials Science & Engineering DRNTU::Engineering::Materials Dip-pen nanolithography (DPN) in conjunction with wet chemical etching was used to synthesize a new class of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface. Ag nanostructures were prepared by depositing dot MHA features on Ag-coated Si/SiOx, followed by etching with ferri/ferrocyanide solution. When these Ag nanostructures are reacted with HAuCl4, electroless plating of Au occurs on the sidewalls of the silver features along with concomitant oxidation of the Ag. This results in the formation of novel open-ended, cylindrical Au−Ag alloy nanostructures. Insight into the mechanism for this process is provided. 2012-09-24T04:42:08Z 2019-12-06T19:13:41Z 2012-09-24T04:42:08Z 2019-12-06T19:13:41Z 2004 2004 Journal Article Zhang, H., Jin, R., & Mirkin, C. A. (2004). Synthesis of Open-Ended, Cylindrical Au−Ag Alloy Nanostructures on a Si/SiOx Surface. Nano Letters, 4(8), 1493-1495. 1530-6984 https://hdl.handle.net/10356/95374 http://hdl.handle.net/10220/8616 10.1021/nl0492281 en Nano letters © 2004 American Chemical Society. |
| spellingShingle | DRNTU::Engineering::Materials Mirkin, Chad A. Zhang, Hua Jin, Rongchao Synthesis of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface |
| title | Synthesis of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface |
| title_full | Synthesis of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface |
| title_fullStr | Synthesis of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface |
| title_full_unstemmed | Synthesis of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface |
| title_short | Synthesis of open-ended, cylindrical Au−Ag alloy nanostructures on a Si/SiOx surface |
| title_sort | synthesis of open ended cylindrical au ag alloy nanostructures on a si siox surface |
| topic | DRNTU::Engineering::Materials |
| url | https://hdl.handle.net/10356/95374 http://hdl.handle.net/10220/8616 |
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