Synthesis and Optical Properties of Cubic Gold Nanoframes.

Synthesis and Optical Properties of Cubic Gold Nanoframes.
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DOI:
10.1007/s12274-008-8046-z
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发表时间:
2008-12-01
期刊:
影响因子:
9.9
通讯作者:
Xia, Younan
Xia, Younan
中科院分区:
材料科学1区
文献类型:
--
作者:
Au, Leslie;Chen, Yeechi;Zhou, Fei;Camargo, Pedro H. C.;Lim, Byungkwon;Li, Zhi-Yuan;Ginger, David S.;Xia, Younan

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This paper describes a facile method of preparing cubic Au nanoframes with open structures via the galvanic replacement reaction between Ag nanocubes and AuCl2−. A mechanistic study of the reaction revealed that the formation of Au nanoframes relies on the diffusion of both Au and Ag atoms. The effect of the edge length and ridge thickness of the nanoframes on the localized surface plasmon resonance peak was explored by a combination of discrete dipole approximation calculations and single nanoparticle spectroscopy. With their hollow and open structures, the Au nanoframes represent a novel class of substrates for applications including surface plasmonics and surface-enhanced Raman scattering.
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