Engineering the resonance frequency of carbon-nanotube oscillators via a telescoping outertube

• Published in: Journal of the Korean Physical Society Vol. 64; no. 10; pp. 1586 - 1589
• Main Authors: Kang, Jeong Won, Lee, Kang Whan
• Format: Journal Article
• Language: English
• Published: Seoul The Korean Physical Society 01.05.2014; 한국물리학회
• Subjects: Mathematical and Computational Physics; Particle and Nuclear Physics; Physics; Physics and Astronomy; Theoretical; 물리학; 81.07.De; Nanotube oscillator; Molecular dynamics; 83.10.Rs; Gigahertz oscillator; 81.07.Oj; 61.46.Fg
• ISSN: 0374-4884; 1976-8524
• DOI: 10.3938/jkps.64.1586

Nanoelectromechanical systems (NEMSs) based on carbon nanotubes (CNTs) enjoy the considerable interest of researchers for various applications. In particular, CNT oscillators have attracted much attention for applications such as ultrafast optical filters and nanosensors. Here, we investigated the resonance frequencies of CNT oscillators with a telescoping outertube via molecular dynamics simulations. Their resonance frequencies could be engineered by changing the telescoping length of the outertube, and the distributions vs. the telescoping length could be fitted by using a normal distribution. While the maximum resonance frequencies were maintained with the same initial velocity, they could be changed by adjusting the telescoping length of the outertube. Engineering the resonance frequency of CNT oscillators via telescoping outertube as a controllable parameter can provide an advanced feature for CNT oscillators to be utilized as NEMS components.