Plasmon Tunability of Gold Nanostars at the Tip Apexes
Plasmon Tunability of Gold Nanostars at the Tip Apexes
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DOI:
10.1021/acsomega.8b02686
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发表时间:
2018-12-01
期刊:
影响因子:
4.1
通讯作者:
Alvarez-Puebla, Ramon A.
中科院分区:
文献类型:
--
作者:
Pazos-Perez, Nicolas;Guerrini, Luca;Alvarez-Puebla, Ramon A.
Herein, we present an optimized bottom-up approach to fabricate homogeneous Au nanostars with plasmon resonances fully tunable between the red and the infrared. The synthetic method relies on the kinetic control of the reaction upon optimization of the reactant concentrations (i.e., gold seeds, reducing agent, and gold salt). Optical enhancing properties of the obtained materials are demonstrated by using SERS with visible and infrared lasers.