Research Articles

Influence of gas discharge parameters on emissions from a dielectric barrier discharge excited argon excimer lamp

Peter Baricholo, Dumisani J. Hlatywayo, Hubertus M. von Bergmann, Timo Stehmann, Erich Rohwer, Mike Collier
South African Journal of Science | Vol 107, No 11/12 | a581 | DOI: https://doi.org/10.4102/sajs.v107i11/12.581 | © 2011 Peter Baricholo, Dumisani J. Hlatywayo, Hubertus M. von Bergmann, Timo Stehmann, Erich Rohwer, Mike Collier | This work is licensed under CC Attribution 4.0
Submitted: 06 January 2011 | Published: 03 November 2011

About the author(s)

Peter Baricholo, Department of Applied Physics, National University of Science and Technology, Zimbabwe
Dumisani J. Hlatywayo, Department of Applied Physics, National University of Science and Technology, Zimbabwe
Hubertus M. von Bergmann, Laser Research Institute, Department of Physics, Stellenbosch University, South Africa
Timo Stehmann, Laser Research Institute, Department of Physics, Stellenbosch University, South Africa
Erich Rohwer, Laser Research Institute, Department of Physics, Stellenbosch University, South Africa
Mike Collier, Department of Electronic Engineering, National University of Science and Technology, Zimbabwe

Abstract

A dielectric barrier discharge excited neutral argon (Ar I) excimer lamp has been developed and characterised. The aim of this study was to develop an excimer lamp operating at atmospheric pressure that can replace mercury lamps and vacuum equipment used in the sterilisation of medical equipment and in the food industry. The effects of discharge gas pressure, flow rate, excitation frequency and pulse width on the intensity of the Ar I vacuum ultraviolet (VUV) emission at 126 nm and near infrared (NIR) lines at 750.4 nm and 811.5 nm have been investigated. These three lines were chosen as they represent emissions resulting from de-excitation of excimer states that emit energetic photons with an energy of 9.8 eV. We observed that the intensity of the VUV Ar2* excimer emission at 126 nm increased with increasing gas pressure, but decreased with increasing excitation pulse frequency and pulse width. In contrast, the intensities of the NIR lines decreased with increasing gas pressure and increased with increasing pulse frequency and pulse width. We have demonstrated that energetic VUV photons of 9.8 eV can be efficiently generated in a dielectric barrier discharge in Ar.

Keywords

argon excimer lamp; dielectric barrier discharge; flow rate; pulsed excitation; second continuum

Metrics

Total abstract views: 3026
Total article views: 4462

Reader Comments

Before posting a comment, read our privacy policy.

Post a comment (login required)

 

Crossref Citations

1. Physicochemical Activation of Distilled Water by a Jet of Microwave Plasma Argon in an Atmosphere of Water Vapor
K. F. Sergeichev, N. A. Lukina
Plasma Physics Reports  vol: 50  issue: 5  first page: 641  year: 2024  
doi: 10.1134/S1063780X24600567

2. Methane from benzene in argon dielectric barrier discharge
Tomi Nath Das, G.R. Dey
Journal of Hazardous Materials  vol: 248-249  first page: 469  year: 2013  
doi: 10.1016/j.jhazmat.2013.01.028

3. Physicochemical activation of distilled water by a jet of microwave plasma argon in an atmosphere of water vapor
K. F. Sergeichev, N. A. Lukina
Fizika plazmy  vol: 50  issue: 5  first page: 614  year: 2024  
doi: 10.31857/S0367292124050109

4. A SIMPLE STUDY OF JOULE HEATING EFFECT IN ARGON DBD REACTOR
Amar Benmoussa, Barkahoum Larouci, Ahmed Belasri
High Temperature Material Processes An International Quarterly of High-Technology Plasma Processes  vol: 27  issue: 2  first page: 1  year: 2023  
doi: 10.1615/HighTempMatProc.2022045178

5. Small Scale Emitter for an Excilamp with the Wavelength of 126 nm
V. S. Skakun, V. F. Tarasenko, V. A. Panarin, D. A. Sorokin
Instruments and Experimental Techniques  vol: 67  issue: 3  first page: 519  year: 2024  
doi: 10.1134/S0020441224700817

6. Yields of Hydrogen and Hydrogen Peroxide from Argon–Water Vapor in Dielectric Barrier Discharge
G. R. Dey, Tomi Nath Das
Plasma Chemistry and Plasma Processing  vol: 36  issue: 2  first page: 523  year: 2016  
doi: 10.1007/s11090-015-9675-0

7. Numerical Investigation of Effect of Driving Voltage Pulse on Low Pressure 90%Ar–10%Cl2 Dielectric Barrier Discharge
Azadeh Barjasteh, Esmaeil Eslami
Plasma Chemistry and Plasma Processing  vol: 38  issue: 1  first page: 261  year: 2018  
doi: 10.1007/s11090-017-9849-z

8. Cold-atmospheric plasma augments functionalities of hybrid polymeric carriers regenerating chronic wounds: In vivo experiments
Yun-Hsuan Chen, Er-Yuan Chuang, Pei-Ru Jheng, Ping-Chien Hao, Jang-Hsing Hsieh, Hsin-Lung Chen, Bradley W. Mansel, Yi-Yen Yeh, Chu-Xuan Lu, Jyh-Wei Lee, Yu-Cheng Hsiao, Nima Bolouki
Materials Science and Engineering: C  vol: 131  first page: 112488  year: 2021  
doi: 10.1016/j.msec.2021.112488

9. Parameters affecting the H2 production and frequency gaps in Ar moisture dielectric barrier discharge
Ghasiram Dey, Shirish A. Nadkarni, Madhu A. Toley, Vidya Vidya
Journal of Applied Physics  vol: 131  issue: 1  year: 2022  
doi: 10.1063/5.0076190

10. Design of Cold Plasma Flexible Brush and Evaluation of Its Oxidizing Plume
Tomi Nath Das, Vadlamani Perayya, Prakash Gidomal Abichandani
IEEE Transactions on Plasma Science  vol: 46  issue: 7  first page: 2536  year: 2018  
doi: 10.1109/TPS.2018.2803823

11. Application of plasma for efficient H2 production: A realism of copper electrode in single dielectric barrier discharge reactor
G. R. Dey, S. D. Zode, V. Namboodiri
Physics of Plasmas  vol: 25  issue: 10  year: 2018  
doi: 10.1063/1.5034071

12. Physical and chemical properties of low-pressure argon-chlorine dielectric barrier discharge
Azadeh Barjasteh, Esmaeil Eslami
Physics of Plasmas  vol: 23  issue: 3  year: 2016  
doi: 10.1063/1.4943407

13. NUMERICAL STUDY OF GAS TEMPERATURE PHENOMENON IN N2/O2 HOMOGENOUS DBD FOR OZONE GENERATION
Barkahoum Larouci, Amar Benmoussa, Ahmed Belasri
High Temperature Material Processes An International Quarterly of High-Technology Plasma Processes  vol: 28  issue: 2  first page: 45  year: 2024  
doi: 10.1615/HighTempMatProc.2023049953