Carbon Nanotube Nanoelectromechanical Devices

我们建议在碳纳米管（CNT）电引线之间的动态接触中使用原子尺度特征来创建集成亚微米器件中的电压-频率转换器，GHz频率混频器和原子分辨率线性编码器。虽然我们之前的研究已经证明了实现实验目标所需的许多组成能力，但仍然存在一些挑战。虽然已经证明了碳纳米管的静电偏转和诱导机械共振，但集成的碳纳米管振荡器尚未构建。在接下来的一年里，我们建议观察由于原子波纹而导致的碳纳米管/碳纳米管结电流的调制，在集成器件中构建具有100MHz - 10ghz响应的悬浮纳米管谐振器，并将这些效应结合到上述器件中。这些装置将引入极限长度尺度和原子晶格间距集成驱动装置。

We propose to use atomic scale features in the dynamic contact between carbon nanotube (CNT) electrical leads to create a voltage to frequency converter, a GHz frequency mixer, and an atomic resolution linear encoder in an integrated sub-micron device. While many of the constituent capabilities required to accomplish our ecperimental goal have been demonstrated in our previous research, several challenges remain. Although electrostatic deflections and induced mechanical resonance of carbon nanotubes have been demonstrated, an integrated CNT oscillator has yet to be constructed. Over the coming year we propose to observe modulations inthe current across CNT/CNT junctions due to atomic corrugation, build suspended nanotube resonators with 100MHz - 10 GHz response in an integrated device, and combine these effects into the devices proposed above. These devices will introduce the ultimate length scale and atomic lattice spacings into integrated actuating devices.