Polymer‐free, low tension graphene mechanical resonators
Polymer‐free, low tension graphene mechanical resonators
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无聚合物、低张力石墨烯机械谐振器
DOI：
10.1002/pssr.201300087
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
A. Zettl
中科院分区：
文献类型：
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作者：
B. Alemán;Michael Rousseas;Yisheng Yang;W. Regan;M. Crommie;Feng Wang;A. Zettl
石墨烯谐振器使用无聚合物的直接转移方法制造到金属增强的多孔碳网格上。该谐振器的特点是不存在有机残留物和优异的结晶度。使用法布里-珀罗技术测量简正模式频率;共振曲线显示高度线性行为，但内置应变非常小，这与原子力显微镜检查的器件几何形状一致。我们的结论是，振荡器的恢复力是由于石墨烯的固有弯曲刚度;我们的测量结果表明约为1.0 eV的值，与以前的理论和实验工作一致。（© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA，魏因海姆）
Graphene resonators are fabricated using a polymer‐free, direct transfer method onto metal reinforced holey carbon grids. The resonators are distinguished by the absence of organic residues and excellent crystallinity. The normal mode frequencies are measured using a Fabry–Perot technique; resonance curves indicate highly linear behaviour but very little built‐in strain, which is consistent with device geometry examined by atomic force microscopy. We conclude that the oscillators' restoring force is due instead to graphene's intrinsic bending rigidity; our measurements indicate a value of approximately 1.0 eV, consistent with previous theoretical and experimental work. (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)