Emission efficiency of exciplex and excimer molecules pumped by a barrier discharge

摘要

Emission characteristics of coaxial (XeCl and KrCl) and planar (Kr-2 and Ar-2) excilamps pumped by a barrier discharge are investigated, and the data on the emission of excimer and exciplex molecules available in the literature are analyzed. It is demonstrated that the maximum efficiencies and mean powers of emission can be achieved with the use of excitation pulses with a duration of tens of microseconds. The main processes influencing the formation and quenching of working molecules are considered. Optimal mixtures and pressures are determined. Efficiencies with respect to the power of a pump source up to 14% and power densities of emitted radiation up to 37 mW/cm(2) are predicted for XeCl and KrCl excilamps. [References: 37]