An aromatic amine derivative represented by the following formula (1) wherein at least one of Ar.sub.1 to Ar.sub.4 is a heterocyclic group represented by the following formula (2) wherein X.sub.1 is an oxygen atom or a sulfur atom. ##STR00001##

The invention provides a luminescent arrangement (2000) comprising an array (2005) of luminescent bodies (2100), and a matrix (2210) at least partly configured between the luminescent bodies (2100), wherein the luminescent bodies (2100) comprise a first luminescent material (2110), wherein the matrix (2210) comprise a light transmissive material (2215), wherein the light transmissive material (2215) comprises a second luminescent material (2220), wherein the first luminescent material (2110) and the light transmissive material (2215) are different materials; and wherein the luminescent bodies (2100) comprise ceramic bodies.

An organic light-emitting device includes: a first electrode, a second electrode facing the first electrode, and an organic layer between the first electrode and the second electrode, the organic layer including: an emission layer, an electron transport region between the second electrode and the emission layer, and a mixed layer between the emission layer and the electron transport region, the mixed layer including a first material and a second material, the first material and the second material being selected from a pyrrolidine-based compound and a C.sub.10-C.sub.30 polycyclicaromatic hydrocarbon-based compound, and a triplet energy Eg.sub.T1 of at least one selected from the first material and the second material being 2.2 eV or greater.

An organic light-emitting device includes: a first electrode, a second electrode facing the first electrode, and an organic layer between the first electrode and the second electrode, the organic layer including: an emission layer, an electron transport region between the second electrode and the emission layer, and a mixed layer between the emission layer and the electron transport region, the mixed layer including a first material and a second material, the first material and the second material being selected from a pyrrolidine-based compound and a C.sub.10-C.sub.30 polycyclicaromatic hydrocarbon-based compound, and a triplet energy Eg.sub.T1 of at least one selected from the first material and the second material being 2.2 eV or greater.

A method including combining at least one first compound in a neutral form with at least one ionic dopant in a first solvent system to provide a first doped reaction product, isolating the first doped reaction product in solid form, and combining the isolated first doped reaction product with at least one conjugated polymer in neutral form in a second solvent system to form a second doped reaction product including an oxidized form of the conjugated polymer a neutral form of the first compound is described. Advantages include better stability, ease of use, and lower metal content. Applications include organic electronic devices including OLEDs.

A method including combining at least one first compound in a neutral form with at least one ionic dopant in a first solvent system to provide a first doped reaction product, isolating the first doped reaction product in solid form, and combining the isolated first doped reaction product with at least one conjugated polymer in neutral form in a second solvent system to form a second doped reaction product including an oxidized form of the conjugated polymer a neutral form of the first compound is described. Advantages include better stability, ease of use, and lower metal content. Applications include organic electronic devices including OLEDs.

Provided are an organic electroluminescence device which has a high luminous efficiency, a low operating voltage and a long life and which is low in a voltage rise in operation and excellent in an ageing stability and has an aptitude in production by the wet process, and a lighting equipment and a display device which are prepared by using the same. The above organic electroluminescence device is constituted from organic layers including at least a light-emitting layer which are interposed between an anode and a cathode, wherein at least one layer of the above organic layers contains a blue phosphorescent organic metal complex having a structure represented by the following Formula (1) and a compound represented by the following Formula (H1): ##STR00001##

Provided are an organic electroluminescence device which has a high luminous efficiency, a low operating voltage and a long life and which is low in a voltage rise in operation and excellent in an ageing stability and has an aptitude in production by the wet process, and a lighting equipment and a display device which are prepared by using the same. The above organic electroluminescence device is constituted from organic layers including at least a light-emitting layer which are interposed between an anode and a cathode, wherein at least one layer of the above organic layers contains a blue phosphorescent organic metal complex having a structure represented by the following Formula (1) and a compound represented by the following Formula (H1): ##STR00001##

An aromatic amine derivative represented by the following formula (1) wherein at least one of Ar.sub.1 to Ar.sub.4 is a heterocyclic group represented by the following formula (2) wherein X.sub.1 is an oxygen atom or a sulfur atom.

##STR00001##

An aromatic amine derivative represented by the following formula (1) wherein at least one of Ar.sub.1 to Ar.sub.4 is a heterocyclic group represented by the following formula (2) wherein X.sub.1 is an oxygen atom or a sulfur atom.

##STR00001##