Plasmon-assisted photoluminescence enhancement of single-walled carbon nanotubes on metal surfaces
Plasmon-assisted photoluminescence enhancement of single-walled carbon nanotubes on metal surfaces
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DOI：
10.1063/1.3467834
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发表时间：
2010-08
影响因子：
4
通讯作者：
T. Sakashita;Y. Miyauchi;K. Matsuda;Y. Kanemitsu
中科院分区：
文献类型：
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作者：
T. Sakashita;Y. Miyauchi;K. Matsuda;Y. Kanemitsu
我们证明了光致发光（PL）增强单碳纳米管使用局部表面等离子体。单纳米管光谱揭示了三倍的PL强度增强粗糙的Au表面上的熔融石英表面上的碳纳米管。荧光增强效应与激发波长和碳纳米管与Au表面的距离有关。光致发光增强的程度取决于局域表面等离子体激元产生的电场增强和碳纳米管向金属表面的能量转移。
We demonstrated photoluminescence (PL) enhancement in single carbon nanotubes using localized surface plasmons. Single nanotube spectroscopy revealed triple the PL intensity enhancement for carbon nanotubes on rough Au surfaces as on fused silica surfaces. The PL enhancement depends on the excitation wavelength and distance between the carbon nanotubes and the Au surface. The degree of PL enhancement is determined by the electric field enhancement from the localized surface plasmon and the energy transfer from the carbon nanotube to the metal surface.