The present specification provides a compound having a spiro structure, and an organic light emitting device including the same.

An organic metal complex represented by the following general formula is useful as a light emitting material for an organic electroluminescent device and others. X represents O, S or N(R.sup.7); Y represents O, S or N(SO.sub.2R.sup.8); R.sup.1 to R.sup.8 represent H, an alkyl group or an aryl group; at least one of Z.sup.1 and Z.sup.2 represents a phenoxazin-10-yl group, a phenothiazin-10-yl group, a phenazin-10-yl group, etc.; M represents an element of the group 1 except for hydrogen, the group 2, the group 11, the group 12, or the group 13 of the periodic table; L represents a ligand; n is 1 to 3; and m is 0 to 2: ##STR00001##

This deals with a luminescent salt comprising a metal cluster anion and an organic cation, wherein the metal cluster anion comprises a metal cluster with at least two metal atoms, and ligands, the metal atoms being chosen from the group consisting of molybdenum, rhenium, tungsten, thallium, niobium, and mixtures thereof, wherein the organic cation comprises a cationic head substituted by at least one substituent including a polymerizable functional group. It also deals with a polymeric material comprising a polymer matrix which has polymerized with this luminescent salt.

An organic light-emitting device including 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, wherein the emission layer includes a first compound, a second compound, and a phosphorescent luminescent material, the first compound is represented by Formula 1A or 1B, and the second compound is represented by Formula 2:

##STR00001##

Processes for preparing color stable Mn.sup.4+ doped phosphors include contacting a phosphor of formula I with a fluorine-containing oxidizing agent in gaseous form at temperature 225 C. to form the color stable Mn.sup.4+ doped phosphor $\begin{array}{cc}{A}_x{\mathrm{MF}}_y\text{:}{\mathrm{Mn}}^{4+}& I\end{array}$
wherein A is independently at each occurrence Li, Na, K, Rb, Cs, or a combination thereof; M is independently at each occurrence Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the MF.sub.y ion; and y is 5, 6 or 7.
In another aspect, the processes include contacting a phosphor of formula I at an elevated temperature with an oxidizing agent comprising a C.sub.1-C.sub.4 fluorocarbon, to form the color stable Mn.sup.4+ doped phosphor.

The present invention provides charge transporting molecular glass mixtures, luminescent molecular glass mixtures, or combinations thereof comprising at least two nonpolymeric compounds each independently corresponding to the structure (R.sup.1Y.sup.1).sub.p [(Z.sup.1Y.sup.2).sub.mR.sup.2Y.sup.3J.sub.nZ.sup.2Y.sup.4R.sup.3 wherein m is zero or one; n is zero up to an integer at which said compound starts to become a polymer; p is an integer of from one to eight; each R.sup.1 and R.sup.3 is independently a monovalent aliphatic or cycloaliphatic hydrocarbon group having 1 to 20 carbon atoms, an aromatic group or a multicyclic aromatic nucleus; R.sup.2, Z.sup.1, and Z.sup.2 each independently represent multivalent aliphatic or cycloaliphatic hydrocarbon groups having 1 to 20 carbon atoms or an aromatic group; and Y.sup.1, Y.sup.2, Y.sup.3, and Y.sup.4 each independently represent one or more linking groups.

A nanocrystal represented by the following Formula 1 and a preparation method thereof:
AMX.sub.3LFormula 1 wherein A is cesium (Cs), rubidium (Rb), or an ammonium salt, M is germanium (Ge), tin (Sn), or lead (Pb), X is one or more selected from Cl, Br and I, and L is an organic functional group having one terminal selected from a phosphonic acid group, a carboxylic acid group, and an amino group.

A process for synthesizing a color stable Mn.sup.4+ doped phosphor includes contacting a precursor of formula I, in gaseous form at an elevated temperature with a fluorine-containing oxidizing agent to form the color stable Mn.sup.4+ doped phosphor
A.sub.x[MF.sub.y]:Mn.sup.4+I
wherein A is Li, Na, K, Rb, Cs, NR.sub.4 or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Hf, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; R is H, lower alkyl, or a combination thereof; x is the absolute value of the charge of the [MF.sub.y] ion; and y is 5, 6 or 7.

The embodiments of the present invention provide an organic electroluminescent device, a manufacturing method thereof and an electronic equipment. The organic electroluminescent device comprises: an anode layer, a hole transport layer, a first light emitting layer, a second light emitting layer, an electron transport layer, and a cathode layer stacked in sequence; wherein the first light emitting layer and the second light emitting layer comprise a same substrate material; the first light emitting layer and/or the second light emitting layer are doped such that a hole mobility of the first light emitting layer is equal to an electron mobility of the second light emitting layer. In the embodiments of the present invention, two light emitting layers with the same substrate material are applied, which can realize a balanced injection for electrons and holes, thereby improving the efficiency and lifetime of the organic electroluminescent device.

The present specification provides a hetero-cyclic compound and an organic light emitting device comprising the same.