Detail publikace

Noise of carbon/graphite thick conducting films

Originální název

Noise of carbon/graphite thick conducting films

Anglický název

Noise of carbon/graphite thick conducting films

Jazyk

en

Originální abstrakt

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/fa 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.

Anglický abstrakt

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/fa 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.

BibTex


@inproceedings{BUT9226,
  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/fa 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 s.r.o.",
  booktitle="Proceedings of the 17th International Conference Noise and Fluctuations",
  chapter="9226",
  institution="CNRL s.r.o.",
  year="2003",
  month="january",
  pages="201",
  publisher="CNRL s.r.o.",
  type="conference paper"
}