R. Antony et al., ALQ(3) LIGHT-EMITTING-DIODES OBTAINED BY ION-BEAM-ASSISTED DEPOSITION(IBAD), Journal de chimie physique et de physico-chimie biologique, 95(3), 1998, pp. 586-594
We present the foundations of our arguments to enhance the quantum eff
iciency of organic light-emitting diodes prepared by vapor deposition
of 8-tris-hydroxyquinoline aluminium. By ion beam assisted deposition
(LEAD) realized with 100 eV Iodine ions, we enhance by a factor 10 the
quantum efficiency; we attribute this beneficial effect to the densif
ication of the layer in the vicinity of the recombination area where o
xygen diffusion is then limited.