Electroluminescence from single layer molecularly doped polymer films

摘要: Electroluminescence from single layer devices comprised of a solid state solution an electron transport small molecule and emitter dispersed in poly(N-vinylcarbazole) is described. The use molecularly doped polymers as the materials package nature these simplifies their fabrication by enabling spin coating techniques to be used. color electroluminescence can tuned across visible spectrum appropriate selection molecule. In addition allows one tailor properties device. Incorporation hole polymer based film enables tune mobility carriers injected into device indium tin oxide anode. Evidence will presented showing that whereas luminance any given increase linearly with current density, observed different independent mobility. critical determinant for level light output number device; how fast they move unimportant.