Surface Hydrogenation and Optics of a Graphene Sheet Transferred onto a Plasmonic Nanoarray
Surface Hydrogenation and Optics of a Graphene Sheet Transferred onto a Plasmonic Nanoarray
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DOI：
10.1021/jp207022r
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发表时间：
2012-02
影响因子：
3.7
通讯作者：
V. Kravets;F. Schedin;R. Jalil;L. Britnell;K. Novoselov;A. Grigorenko
中科院分区：
文献类型：
--
作者：
V. Kravets;F. Schedin;R. Jalil;L. Britnell;K. Novoselov;A. Grigorenko
我们报道了耦合到转移到纳米阵列顶部的单层石墨烯薄片的等离子体纳米阵列的性质。我们观察到等离子体纳米阵列的近场产生的石墨烯层的共振拉曼散射显著(高达1000倍)的增强。这种增强用电磁机制进行了定量的解释。实验证明，石墨烯的存在引起了衍射耦合等离子体共振谱的显著漂移，表明集体等离子体共振谱可用于研究石墨烯的表面化学。我们的结果强调了石墨烯功能化等离子体的前景。
We report properties of a plasmonic nanoarray coupled to a single layered graphene sheet transferred on the top of the nanoarray. We observe significant (up to 1000 times) enhancements of resonant Raman scattering from a graphene layer generated by near fields of a plasmonic nanoarray. This enhancement is quantitatively explained by the electromagnetic mechanism. We experimentally demonstrate a significant spectral shift of diffractive coupled plasmon resonances induced by the graphene presence and show that the collective plasmon resonances can be used to study surface chemistry of graphene. Our results emphasize prospective capabilities of graphene-functionalized plasmonics.