Brownian noise in FET based nano-pore sensing: a 3D simulation study

I. Moore, C. Millar, S. Roy, A. Asenov

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

Abstract

We report the development and testing of simulation software, which, combining self-consistent Brownian dynamics and Drift Diffusion simulation techniques in a single simulation domain allows the simulation of the effect of ions and charged molecules on the current flowing through a sensing FET. For sensory applications an aqueous solution is introduced above the transistor gate dielectric and the effect of fixed charges on the transistor current is investigated. We significantly extend previous work [1] by analysing the effects of mobile ions on the system and introduce an initial analysis of the noise associated with the Brownian motion of mobile ions in the solution in order to determine the sensitivity of the FET in measuring the position and number of ions.

Original languageEnglish
Title of host publication2010 14th International Workshop on Computational Electronics, IWCE 2010
PublisherIEEE
Pages27-30
Number of pages4
ISBN (Print)9781424493845
DOIs
Publication statusPublished - 1 Dec 2010
Event2010 14th International Workshop on Computational Electronics, IWCE 2010 - Pisa, Italy
Duration: 26 Oct 201029 Oct 2010

Conference

Conference2010 14th International Workshop on Computational Electronics, IWCE 2010
CountryItaly
CityPisa
Period26/10/1029/10/10

Keywords

  • mathematical model
  • biological system modeling
  • ions
  • solid modeling
  • MOSFETs
  • equations
  • biosensors
  • brownian motion
  • computerised instrumentation
  • field effect transistors

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