Carbon nanotube network varactor

A A Generalov; I V Anoshkin; M Erdmanis; D V Lioubtchenko; V Ovchinnikov; A G Nasibulin; A V Räisänen

doi:10.1088/0957-4484/26/4/045201

Carbon nanotube network varactor

Nanotechnology. 2015 Jan 30;26(4):045201. doi: 10.1088/0957-4484/26/4/045201. Epub 2015 Jan 5.

Authors

A A Generalov¹, I V Anoshkin, M Erdmanis, D V Lioubtchenko, V Ovchinnikov, A G Nasibulin, A V Räisänen

Affiliation

¹ Department of Radio Science and Engineering, Aalto University School of Electrical Engineering, Otakaari 5A, FI-02150, Espoo, Finland.

PMID: 25556375
DOI: 10.1088/0957-4484/26/4/045201

Abstract

Microelectromechanical system (MEMS) varactors based on a freestanding layer of single-walled carbon nanotube (SWCNT) films were designed, fabricated and tested. The freestanding SWCNT film was employed as a movable upper patch in the parallel plate capacitor of the MEMS. The measurements of the SWCNT varactors show very high tunability, nearly 100%, of the capacitance with a low actuation voltage of 10 V. The functionality of the varactor is improved by implementing a flexible nanocellulose aerogel filling.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Electrochemistry / instrumentation*
Humans
Micro-Electrical-Mechanical Systems / instrumentation*
Nanotubes, Carbon*

Substances

Nanotubes, Carbon