An organic molecule is disclosure having a structure of Formula I

##STR00001##

wherein Q is at each occurrence N or CR.sup.III; W is at each occurrence N or CR.sup.IV; Z is at selected from the group consisting of a direct bond, CR.sup.3R.sup.4, C═CR.sup.3R.sup.4, C═O, C═NR.sup.3, NR.sup.3, O, SiR.sup.3R.sup.4, S, S(O) and S(O).sub.2; R.sup.A is selected from the group consisting of CN and CF.sub.3; and wherein exactly one Q and exactly one W is N.

An organic light emitting diode (OLED) in which at least one emitting material layer includes a dopant having the following structure represented by Formula 1 and a biscarbazole-base host and/or an azine-based host, and an organic light emitting device including the OLED. The OLED and the organic light emitting device including the host and the dopant can improve their luminous efficiency and luminous lifespan.

Ir(L.sub.A).sub.m(L.sub.B).sub.n  [Formula 1]

The present invention provides an organic material composition and applications thereof. By the combination of the compounds comprised in the organic material composition, the organic material composition makes the element have a lower driving voltage, a higher current efficiency and a longer service life.

The present disclosure relates to an organic light emitting diode (OLED) in which at least one emitting material layer includes a dopant having the following structure of Formula 1 and a biscarbazole-based material and/or an azine-based material, at least one hole transport layer includes a spiro-bifluorene-based material and at least one electron transport layer includes a benzimidazole-based material, and an organic light emitting device including the OLED. The OLED and the organic light emitting device including the host and the dopant can improve their luminous efficiency and luminous lifespan.

Ir(L.sub.A).sub.m(L.sub.B).sub.n  [Formula 1]

An organic light emitting diode (OLED) in which at least one emitting material layer includes a dopant having the structure represented by Formula 1 and a (hetero) aryl-amine-base host and/or an azine-based host, and an organic light emitting device including the OLED. The OLED and the organic light emitting device including the host and the dopant can improve their luminous efficiency and luminous lifespan.

Ir(L.sub.A).sub.m(L.sub.B).sub.n  [Formula 1]

An organic light emitting diode (OLED) in which at least one emitting material layer includes a dopant having the following structure represented by Formula 1 and a fused hetero-aromatic-based host and/or an azine-based host, and an organic light emitting device including the OLED. The OLED and the organic light emitting device including the host and the dopant can improve their luminous efficiency and luminous lifespan.

Ir(L.sub.A).sub.m(L.sub.B).sub.n  [Formula 1]

An organic light emitting diode (OLED) in which at least one emitting material layer includes a dopant having the following structure represented by Formula 1 and a fused hetero-aromatic-based host and/or an azine-based host, and an organic light emitting device including the OLED. The OLED and the organic light emitting device including the host and the dopant can improve their luminous efficiency and luminous lifespan.

Ir(L.sub.A).sub.m(L.sub.B).sub.n  [Formula 1]

The present invention provides a high triplet energy compound of Formula 1 for an organic electroluminescent device: ##STR00001##
In Formula 1, X represents an oxygen or a sulfur atom, and represents a substituted or unsubstituted hetero-aromatic ring containing at least two nitrogens or an alkyl group with C2 to C6. The organic electroluminescent device including the compound used in an emissive layer or an electron transporting layer enhances the efficiency and the stability of the device.

Objects are to provide the following: a substance that facilitates hole injection and has high triplet excitation energy; a light-emitting element having high emission efficiency using the substance that facilitates hole injection and has high triplet excitation energy; a light-emitting element having low driving voltage; and a light-emitting device, an electronic device, and a lighting device having low power consumption. Provided is a triazole derivative in which a dibenzothiophen-4-yl or dibenzofuran-4-yl group represented by General Formula (G2) is bonded to any one of Ar.sup.1 to Ar.sup.3 of a triazole derivative represented by General Formula (G1). In the formulas, A represents oxygen or sulfur, Ar.sup.1 to Ar.sup.3 separately represent a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, and R.sup.1 to R.sup.7 separately represent hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 13 carbon atoms. ##STR00001##

The present invention relates to an electronic device comprising anode, cathode and at least one organic layer which comprises a compound of the formula (I) to (IV). The invention furthermore encompasses the use of compounds of the formula (I) to (IV) in an electronic device and to a compound of the formula (Ic) to (IVc).