Organic Light Emitting Device

The present Invention relates to an organic light emitting device comprising: (i) an anode; (ii) a cathode; (iii) at least one light emitting layer arranged between the anode and the cathode; (iv) optionally a first hole injection layer comprising a first hole injection compound, the first hole injection layer being arranged between the anode and the light emitting layer and the hole injection layer being adjacent to the anode; (v) a first hole transport layer comprising a first hole transport matrix compound wherein the first hole transport layer is arranged a) between the first hole injection layer and the light emitting layer and adjacent to the first hole injection layer; or b) between the anode and the light emitting layer and adjacent to the anode; (vi) a second hole injection layer arranged between the first hole transport layer and the light emitting layer, wherein the second hole injection layer is adjacent to the first hole transport layer and wherein the second hole injection layer comprises a second hole injection compound; wherein the second hole injection compound is a halo-genated fullerene, a partially or fully halogenated metal complex or a mixture thereof.