Study and optimization of mercury free fluorescent signs

Sébastien Point (1) , Eric Robert (1) , Sébastien Dozias (1) , Christophe Cachoncinlle (1) , Raymond Viladrosa (1) , Jean Michel Pouvesle (1)

1 GREMI - Groupe de recherches sur l'énergétique des milieux ionisés

Short pulse excitation and analysis of low pressure Ne/Xe plasma in cold hollow electrode fluorescent tube is reported. A very significant enhancement of light output, lamp efficiency and lifetime has been achieved by optimizing the pulse duration and the gas mixture pressure. The time resolved spectroscopy of radiating species - xenon atoms, xenon ions, neon atoms and (XeNe) molecules – in combination with the voltage and current measurement provide a comprehensive description of the glow ignition and development, and of the afterglow characteristics.

Mots clés: fluorescent; mercury free; ultraviolet; xenon; plasma; pulsed discharge

Domaines: Physique des plasmas [physics.plasm-ph]

Sébastien Point, Eric Robert, Sébastien Dozias, Christophe Cachoncinlle, Raymond Viladrosa, et al.. Study and optimization of mercury free fluorescent signs. Journal of Optoelectronics and Advanced Materials, 2008, 10 (8), p 1922-1926. ⟨hal-00441347⟩