摘要
Carbon nanotubes(CNTs)were discovered in 1991 inside NEC Corporation laboratories by S.Iijima,who studied the synthesis of fullerenes and first prepared a new type of carbon structures,referred to as CNTs,which were described as“helical microtubules of graphitic carbon”[1].Since CNTs have very high Young’s modulus and tensile strength,together with very small diameter,then they can reach natural frequencies of the THz order and therefore can be used as high sensitivity resonators in many electro-mechanical devices such as sensors,charge detectors and oscillators.
