Gold coating of silver nanoprisms
Core–shell Ag@Au nanoprisms are prepared through a surfactant-free seed-mediated approach by taking advantage of the anisotropic structure of silver nanoprisms as seeds. The gold coating on the silver nanoprism surface is achieved by using hydroxylamine as a mild reducing agent, and the final fully...
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sg-ntu-dr.10356-970902020-06-01T10:13:38Z Gold coating of silver nanoprisms Saadat, Somaye Martinsson, Erik Aili, Daniel Tay, Yee Yan Bo, Liedberg Loo, Say Chye Joachim Zhang, Hua Boey, Freddy Yin Chiang Xue, Can Shahjamali, Mohammad Mehdi Bosman, Michel Cao, Shao-Wen Huang, Xiao School of Materials Science & Engineering Core–shell Ag@Au nanoprisms are prepared through a surfactant-free seed-mediated approach by taking advantage of the anisotropic structure of silver nanoprisms as seeds. The gold coating on the silver nanoprism surface is achieved by using hydroxylamine as a mild reducing agent, and the final fully gold-coated prism structures are confirmed by microscopic and spectroscopic characterization. The resulting Ag@Au core–shell structure preserves the optical signatures of nanoprisms and offers versatile functionality and particularly better stability against oxidation than the bare silver nanoprism. The surface plasmon resonances of the core–shell Ag@Au nanoprisms can be tuned throughout the visible and near-IR range as a function of the Au shell thickness. Such tailorable optical features and surfactant-free gold shells have great potential applications in biosensing and bioimaging. NRF (Natl Research Foundation, S’pore) 2013-06-17T07:32:50Z 2019-12-06T19:38:52Z 2013-06-17T07:32:50Z 2019-12-06T19:38:52Z 2012 2012 Journal Article Shahjamali, M. M., Bosman, M., Cao, S.-W., Huang, X., Saadat, S., Martinsson, E., et al. (2012). Gold coating of silver nanoprisms. Advanced functional materials, 22(4), 849-854. 1616-3028 https://hdl.handle.net/10356/97090 http://hdl.handle.net/10220/10462 10.1002/adfm.201102028 en Advanced functional materials © 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. |
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Core–shell Ag@Au nanoprisms are prepared through a surfactant-free seed-mediated approach by taking advantage of the anisotropic structure of silver nanoprisms as seeds. The gold coating on the silver nanoprism surface is achieved by using hydroxylamine as a mild reducing agent, and the final fully gold-coated prism structures are confirmed by microscopic and spectroscopic characterization. The resulting Ag@Au core–shell structure preserves the optical signatures of nanoprisms and offers versatile functionality and particularly better stability against oxidation than the bare silver nanoprism. The surface plasmon resonances of the core–shell Ag@Au nanoprisms can be tuned throughout the visible and near-IR range as a function of the Au shell thickness. Such tailorable optical features and surfactant-free gold shells have great potential applications in biosensing and bioimaging. |
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School of Materials Science & Engineering |
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School of Materials Science & Engineering Saadat, Somaye Martinsson, Erik Aili, Daniel Tay, Yee Yan Bo, Liedberg Loo, Say Chye Joachim Zhang, Hua Boey, Freddy Yin Chiang Xue, Can Shahjamali, Mohammad Mehdi Bosman, Michel Cao, Shao-Wen Huang, Xiao |
format |
Article |
author |
Saadat, Somaye Martinsson, Erik Aili, Daniel Tay, Yee Yan Bo, Liedberg Loo, Say Chye Joachim Zhang, Hua Boey, Freddy Yin Chiang Xue, Can Shahjamali, Mohammad Mehdi Bosman, Michel Cao, Shao-Wen Huang, Xiao |
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Saadat, Somaye Martinsson, Erik Aili, Daniel Tay, Yee Yan Bo, Liedberg Loo, Say Chye Joachim Zhang, Hua Boey, Freddy Yin Chiang Xue, Can Shahjamali, Mohammad Mehdi Bosman, Michel Cao, Shao-Wen Huang, Xiao Gold coating of silver nanoprisms |
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Saadat, Somaye |
title |
Gold coating of silver nanoprisms |
title_short |
Gold coating of silver nanoprisms |
title_full |
Gold coating of silver nanoprisms |
title_fullStr |
Gold coating of silver nanoprisms |
title_full_unstemmed |
Gold coating of silver nanoprisms |
title_sort |
gold coating of silver nanoprisms |
publishDate |
2013 |
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https://hdl.handle.net/10356/97090 http://hdl.handle.net/10220/10462 |
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