title: Ultra-high sensitivity of super carbon-nanotube-based mass and strain sensors.
abstract: Based on the molecular structure mechanics method, the dynamic properties of super carbon nanotubes (STs), together with ST-based mass and strain sensors, are investigated. The following results are obtained: (a) the fundamental frequency of the STs is found to be lower than that of the single-wall carbon nanotube (SWCNT); (b) the STs may be a potential ultra-high sensitivity mass sensor with a sensitivity about 10(-24) g, which is much higher than that of SWCNT-based mass sensors (10(-21) g); (c) the ST-based strain sensor has a sensitivity as high as 887 Hz/nanostrain, which is also higher than that of SWCNT-based strain sensors. The obtained results suggest that the STs could be used to design the new generation of sensors due to its high sensitivity and ultra-low density.
authors.affiliation: Department of Engineering Mechanics, Tsinghua University, 100084 Beijing, People's Republic of China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Li
authors.forename: Xinming
authors.initials: X
authors.lastname: Qiu
authors.forename: Fan
authors.initials: F
authors.lastname: Yang
authors.forename: Xi-Shu
authors.initials: XS
authors.lastname: Wang
authors.forename: Yajun
authors.initials: Y
authors.lastname: Yin