volume | PIER Journals

Abstract

A low frequency (50 Hz) dielectric barrier discharge (DBD) system with a single dielectric cover on copper coil anode is designed to generate and sustain the microdischarge plasma which is very practical for material processing applications. The DBD system is powered by a high tension ac source consisting of a conventional step up transformer and variac. The dielectric barriers (quartz and glass) between the conducting electrodes appreciably influences the discharge plasma characterized by optical emission spectroscopy technique. Using intensity ratio method, the electron temperature and electron number density are determined from recorded spectra as function of ac input voltage, type and thickness of dielectric barrier and inter-electrode gap. It is observed that both the electron temperature and electron number density increase with the increase in ac input voltage and ε_r/d ratio, while a decreasing trend is observed with increase in inter-electrode gap.

1. Kostov, K. G., R. Y. Honda, L. M. S. Alves, and M. E. Kayama, "Characterization of dielectric barrier discharge reactor for material treatment," Brazilian Journal of Physics, Vol. Brazilia. Google Scholar

2. Pandey, R. S. and D. K. Singh, "Study of electromagnetic ion-cyclotron instability in a magnetoplasma," Progress In Electromagnetics Research M, Vol. 14, 147-161, 2010.
doi:10.2528/PIERM10052501 Google Scholar

3. Pandey, R. S., "Cold plasma injection on VLF wave mode for relativistic magnetoplasma with A.C. Electric Field," Progress In Electromagnetics Research C, Vol. 2, 217-232, 2008.
doi:10.2528/PIERC08022501 Google Scholar

4. Yongh, K., M. S. Cha, W. H. Shin, and Y. H. Song, "Characterization of dielectric barrier glow discharges with a low frequency generator in nitrogen," Journal of the Korean Physical Society, Vol. 43, No. 5, 2003. Google Scholar

5. Shi, L., B. L. Guo, Y. M. Liu, and J. T. Li, "Characterization of plasma sheath channel and its effect on communication," Progress In Electromagnetics Research, Vol. 123, 321-336, 2012.
doi:10.2528/PIER11110201 Google Scholar

6. Osawa, N. and Y. Yoshioka, "Generation of low-frequency homogeneous dielectric barrier discharge at atmospheric pressure," IEEE Transactions on Plasma Science, Vol. 40, No. 1, 2011. Google Scholar

7. Meiners, , A., M. Leck, and B. Adel, "Efficiency enhancement of a dielectric barrier plasma discharge by dielectric barrier optimization," Review of Science Instruments, Vol. 81, 113507, 2010.
doi:10.1063/1.3501963 Google Scholar

8. Anghel, S. D., "Generation and electrical diagnostic of an atmospheric-pressure dielectric barrier discharge," IEEE Trans-actions on Plasma Science, Vol. 39, No. 3, 2011. Google Scholar

9. Kogelschatz, U., "Atmospheric-pressure plasma technology," Plasma Physics and Controlled Fusion, Vol. 46, No. B63, 2004. Google Scholar

10. Jain, R. and M. V. Kartikeyan, "Design of a 60 GHz, 100kW CW gyrotron for plasma diagnostics: GDS-V.01 simulations," Progress In Electromagnetics Research B, Vol. 22, 379-399, 2010.
doi:10.2528/PIERB10061508 Google Scholar

11. Khan, F. U., N. U. Rehman, S. Naseer, M. A. Naveed, A. Qayyum, N. A. D. Khattak, and M. Zakaullah, "Diagnostic of 13.56MHz RF sustained Ar-N2 plasma by optical emission spectroscopy," Eur. Physic, J. Appl. Phys., Vol. 45, 11002, 2009. Google Scholar

12. Costa, E. M. M., "Parasitic capacitances on planar coil," Journal of Electromagnetic Waves and Applications, Vol. 23, No. 17-18, 2339-2350, 2009.
doi:10.1163/156939309790416198 Google Scholar

13. Shiri, A. and A. Shoulaie, "A new methodology for magnetic force calculations between planar spiral coils," Progress In Electromagnetics Research, Vol. 95, 39-57, 2009.
doi:10.2528/PIER09031608 Google Scholar

14. Chapelle, P., T. Czerwiec, and J. P. Bellot, "Plasma diagnostic by emission spectroscopy during vacuum arc remelting," Plasma Source Sci. Technol., Vol. 11, 303-304, 2002. Google Scholar

15. Jandieri, G. V., A. Ishimaru, V. Jandieri, and N. N. Zhukova, "Depolarization of metric radio signals and the spatial spectrum of scattered radiation by magnetized turbulent plasma slab," Progress In Electromagnetics Research, Vol. 112, 63-75, 2011. Google Scholar

16. Fozza, A. C., M. Moisan, and M. R. Wertheimer, "Vacuum ultraviolet to visible emission from hydrogen plasma: Effect of excitation frequency," J. Appl. Phys., Vol. 88, No. 20, 2000. Google Scholar

17. Heald, M. A. and C. B. Waharton, Plasma Diagnostics with Microwaves, John Wiley & Sons Inc., 1978.

18. Naz, M. Y., A. Ghaffar, N. U. Rehman, M. Azam, S. Shukrullah, A. Qayyum, and M. Zakaullah-, "Symmetric and asymmetric double langmuir probes characterization of radio frequency inductively coupled nitrogen plasma," Progress In Electromagnetics Research, Vol. 115, 207-221, 2011. Google Scholar

19. Naz, M. Y., A. Ghaffar, N. U. Rehman, S. Naseer, and M. Zakaullah, "Double and triple Langmuir probes measurements in inductively coupled nitrogen plasma," Progress In Electromagnetics Research, Vol. 114, 113-128, 2011. Google Scholar

20. Ai, X., Y. Han, C. Y. Li, and X. W. Shi, "Analysis of dispersion relation of piecewise linear recursive convolution FDTD method for space-varying plasma," Progress In Electromagnetics Research Letters, Vol. 22, 83-93, 2011. Google Scholar

21. Gurel, C. S. and E. Oncu, "Interaction of electromagnetic wave and plasma slab with partially linear and sinusoidal electron density profile," Progress In Electromagnetics Research Letters, Vol. 12, 171-181, 2009.
doi:10.2528/PIERL09061707 Google Scholar

22. Pavelyev, A. G., Y.-A. Liou, J. Wickert, K. Zhang, C.-S. Wang, and Y. Kuleshov, "Analytical model of electromagnetic waves propagation and location of inclined plasma layers using occultation data," Progress In Electromagnetics Research, Vol. 106, 177-202, 2010.
doi:10.2528/PIER10042707 Google Scholar

23. Qian, Z. H., R.-S. Chen, K. W. Leung, and H. W. Yang, "FDTD analysis of microstrip patch antenna covered by plasma sheath," Progress In Electromagnetics Research, Vol. 52, 173-183, 2005.
doi:10.2528/PIER04080901 Google Scholar

24. Sternberg, N. and A. I. Smolyakov, "Resonant transparency of a three-layer Structure containing the dense plasma region," Progress In Electromagnetics Research, Vol. 99, 37-52, 2009.
doi:10.2528/PIER09091708 Google Scholar

Dr. Muhammad Yasin Naz

Dr. Abdul Ghaffar

Dr. Najeeb Ur Rehman

Dr. Shazia Shukrullah

Dr. M. A. Ali