Silver-Free Gold Nanocages with Near-Infrared Extinctions

Amin Shakiba, Shreya Shah, Andrew C. Jamison, Irene Rusakova, Tai Chou Lee, T. Randall Lee

研究成果: 雜誌貢獻期刊論文同行評審

11 引文 斯高帕斯(Scopus)

摘要

This article reports the preparation of silver-free Au nanocages from cubic palladium templates. Pd nanocubes were subjected to galvanic replacement with Au3+ to produce Pd@Au nanocages having tunable dimensions (i.e., edge length, gold layer thickness, and hollow pore size), which allowed selectable positioning of the optical extinction maxima from the visible to the near infrared. These new nanocages circumvent the problems associated with previous Ag-derived gold alloy nanocages, which suffer from the toxicity of residual silver and the possible fragmentation of such alloyed nanostructures, thereby limiting their potential applications. In contrast, the present materials represent stable, nontoxic, tunable, and hollow plasmonic nanostructures.

原文???core.languages.en_GB???
頁(從 - 到)456-463
頁數8
期刊ACS Omega
1
發行號3
DOIs
出版狀態已出版 - 30 9月 2016

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