Publication detail
Noise of carbon/graphite thick conducting films
SEDLÁKOVÁ, V., BRÜSTLOVÁ, J., ŠIKULA, J., HLÁVKA, J., COCKER, J., ADAMS, K., GREENHILL, D.
Original Title
Noise of carbon/graphite thick conducting films
English Title
Noise of carbon/graphite thick conducting films
Type
conference paper
Language
en
Original Abstract
Thick conducting films based on carbon/graphite particles in polymer vehicle are characterised by noise measurements. The samples structure consists of conducting particles and inter-particle layers with semiconductor conductivity. The sources of fluctuations are both in the conducting particles volume and in contact region between carbon/graphite particles. The low frequency noise spectral density is 1/f type and it is proportional to the square of the current, voltage or electric field intensity. The frequency factor a is very near to 1. We suppose, that there is a fundamental 1/f noise component as a result of mobility fluctuation. Additional is excess 1/f noise component generated at the interfaces between conducting particles and polymer vehicle. The main problem is if 1/f fluctuation is caused by fluctuation of a number of carriers acting in transport or by mobility fluctuation due to scattering process.
English abstract
Thick conducting films based on carbon/graphite particles in polymer vehicle are characterised by noise measurements. The samples structure consists of conducting particles and inter-particle layers with semiconductor conductivity. The sources of fluctuations are both in the conducting particles volume and in contact region between carbon/graphite particles. The low frequency noise spectral density is 1/f type and it is proportional to the square of the current, voltage or electric field intensity. The frequency factor a is very near to 1. We suppose, that there is a fundamental 1/f noise component as a result of mobility fluctuation. Additional is excess 1/f noise component generated at the interfaces between conducting particles and polymer vehicle. The main problem is if 1/f fluctuation is caused by fluctuation of a number of carriers acting in transport or by mobility fluctuation due to scattering process.
RIV year
2003
Released
01.01.2003
Publisher
CNRL
Location
Brno
ISBN
80-239-1005-1
Book
Noise and Fluctuations
Pages from
201
Pages to
204
Pages count
4
BibTex
@inproceedings{BUT9397,
author="Vlasta {Sedláková} and Jitka {Brüstlová} and Josef {Šikula} and Jan {Hlávka} and J. {Cocker} and K. {Adams} and D. {Greenhill}",
title="Noise of carbon/graphite thick conducting films",
annote="Thick conducting films based on carbon/graphite particles in polymer vehicle are characterised by noise measurements. The samples structure consists of conducting particles and inter-particle layers with semiconductor conductivity. The sources of fluctuations are both in the conducting particles volume and in contact region between carbon/graphite particles. The low frequency noise spectral density is 1/f type and it is proportional to the square of the current, voltage or electric field intensity. The frequency factor a is very near to 1. We suppose, that there is a fundamental 1/f noise component as a result of mobility fluctuation. Additional is excess 1/f noise component generated at the interfaces between conducting particles and polymer vehicle. The main problem is if 1/f fluctuation is caused by fluctuation of a number of carriers acting in transport or by mobility fluctuation due to scattering process.",
address="CNRL",
booktitle="Noise and Fluctuations",
chapter="9397",
institution="CNRL",
year="2003",
month="january",
pages="201",
publisher="CNRL",
type="conference paper"
}