Ulster University Logo

Ulster Institutional Repository

Analysis of excitation processes and electron temperature changes from spectral data in a dc micro plasma discharge

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Mariotti, D, Maguire, PD, Mahony, CMO and McLaughlin, JAD (2004) Analysis of excitation processes and electron temperature changes from spectral data in a dc micro plasma discharge. Plasma Sources Science and Technology, 13 (4). pp. 576-581. [Journal article]

[img]
Preview
PDF - Published Version
85Kb

URL: http://dx.doi.org/10.1088/0963-0252/13/4/004

DOI: doi:10.1088/0963-0252/13/4/004

Abstract

A micro scale dc plasma discharge was studied to determine the potentialities for lab-on-the-chip applications. Different working conditions for the micro plasma discharge were considered: the pressure was varied between 2.7 and 5.3 kPa and the applied dc voltage was between 400 and 540 V, generating a discharge current in the range of 0.02–0.09 mA. The electrode distance was maintained at 0.025 cm and argon was used as the gas for the formation of plasma discharges. The number densities of excited states were determined by spectral emission data (400–1000 nm) and then were calculated by introducing a few assumptions: comparison of experimental and calculated number densities allowed an analysis of a volume averaged electron energy distribution function. Also, it was possible to estimate an effective electron temperature for different conditions of pressure and applied voltage.Copyright Institute of Physics 2004

Item Type:Journal article
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:1498
Deposited By:Mrs Ann Blair
Deposited On:27 Nov 2009 13:50
Last Modified:15 Jun 2011 10:51

Repository Staff Only: item control page