Publication detail

Gas Pressure Sensor Based on PECVD Grown Carbon Nanotubes

FICEK, R. ELIÁŠ, M. ZAJÍČKOVÁ, L. JAŠEK, O. VRBA, R.

Original Title

Gas Pressure Sensor Based on PECVD Grown Carbon Nanotubes

English Title

Gas Pressure Sensor Based on PECVD Grown Carbon Nanotubes

Type

conference paper

Language

en

Original Abstract

In this paper the development and fabrication of the pressure sensor based on electron field emission from carbon nanotubes (CNTs) was described. The sensor consisted of two parts: a silicon membrane as an anode; and multi-walled CNTs on a silicon cathode, creating a vacuum micro-chamber. Both electrodes were fabricated from the silicon single crystal (Si) wafer of an orientation <100> doped by phosphorus. The CNTs were grown by a plasma enhanced CVD using an iron catalyst in an atmospheric pressure microwave torch. The catalyst was patterned into an area corresponding to the membrane dimensions. The thin CNTs with a diameter of about 80 nm were standing vertically perpendicular to the substrate due to a crowding effect. In order to find the threshold current, the emission characteristics of prepared sensors were measured.

English abstract

In this paper the development and fabrication of the pressure sensor based on electron field emission from carbon nanotubes (CNTs) was described. The sensor consisted of two parts: a silicon membrane as an anode; and multi-walled CNTs on a silicon cathode, creating a vacuum micro-chamber. Both electrodes were fabricated from the silicon single crystal (Si) wafer of an orientation <100> doped by phosphorus. The CNTs were grown by a plasma enhanced CVD using an iron catalyst in an atmospheric pressure microwave torch. The catalyst was patterned into an area corresponding to the membrane dimensions. The thin CNTs with a diameter of about 80 nm were standing vertically perpendicular to the substrate due to a crowding effect. In order to find the threshold current, the emission characteristics of prepared sensors were measured.

Keywords

CNTs, Field Emission, Pressure Sensor

RIV year

2007

Released

01.01.2007

Publisher

Material Research Society

Location

San Francisco

Pages from

1

Pages to

4

Pages count

4

BibTex


@inproceedings{BUT23966,
  author="Richard {Ficek} and Marek {Eliáš} and Lenka {Zajíčková} and Ondřej {Jašek} and Radimír {Vrba}",
  title="Gas Pressure Sensor Based on PECVD Grown Carbon Nanotubes",
  annote="In this paper the development and fabrication of the pressure sensor based on electron field emission from carbon nanotubes (CNTs) was described. The sensor consisted of two parts: a silicon membrane as an anode; and multi-walled CNTs on a silicon cathode, creating a vacuum micro-chamber. Both electrodes were fabricated from the silicon single crystal (Si) wafer of an orientation <100> doped by phosphorus. The CNTs were grown by a plasma enhanced CVD using an iron catalyst in an atmospheric pressure microwave torch. The catalyst was patterned into an area corresponding to the membrane dimensions. The thin CNTs with a diameter of about 80 nm were standing vertically perpendicular to the substrate due to a crowding effect. In order to find the threshold current, the emission characteristics of prepared sensors were measured.",
  address="Material Research Society",
  booktitle="MRS Proceedings Volume 1018E",
  chapter="23966",
  institution="Material Research Society",
  year="2007",
  month="january",
  pages="1",
  publisher="Material Research Society",
  type="conference paper"
}