A gas discharge device constructed out of one or more plasma-shells with an organic luminescent substance located on an external portion of each plasma-shell, the organic substance being excited by photons from a gas discharge within the plasma-shell. In one embodiment, the plasma-shell is made of an inorganic luminescent substance. The external organic luminescent substance may contain or be combined with an inorganic substance that may also be a luminescent substance. The plasma-shell may contain both inorganic and organic substances.