Publication details

Experimental and theoretical characterization of a multi-wavelength DBD-driven exciplex lamp operated with mercury bromide/rare gas mixtures

Authors

GUIVAN Mykola M. MALININA Antonina A. BRABLEC Antonín

Year of publication 2011
Type Article in Periodical
Magazine / Source Journal of physics D: Applied physics
MU Faculty or unit

Faculty of Science

Citation
Web https://iopscience.iop.org/article/10.1088/0022-3727/44/22/224012
Doi http://dx.doi.org/10.1088/0022-3727/44/22/224012
Keywords BARRIER-DISCHARGE; SPECTROSCOPIC DIAGNOSTICS; DISSOCIATION LASER; ELECTRON-IMPACT; DIIODIDE VAPOR; EXCIMER LAMP; EXCITATION; HGBR2
Description Emission spectra from an atmospheric-pressure dielectric barrier discharge (DBD) with HgBr2/He or HgBr2/Xe/Kr mixtures, as well as the electrical characteristics, were investigated at repetition frequencies of sinusoidal voltage pulses up to 125 kHz. In the spectra, the study revealed radiation from HgBr(B-X, C-X) exciplex molecules, atomic lines of mercury and rare gases, and in mixtures with xenon, radiation of XeBr(B-X, B-A) exciplex molecules. Regularities in the spectral characteristics of the radiation from the gas-discharge plasma were discussed. The electron energy distribution function, the specific energy lost in the processes involving electrons, the electron temperature and density, and the rate constants of elastic and inelastic electron scattering by the components of the working mixture were calculated as functions of the reduced field E/N. The high-frequency atmospheric-pressure barrier discharge in mixtures of mercury dibromide with gases can be used in multi-wavelength exciplex lamps, operating in the UV and visible regions.
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