Provided are compounds capable of functioning as a host in an OLED at room temperature, where the compound includes: a chemical group A that includes a first element that is one of D, F, CN, Si, Ge, P, B, or Se; and a chemical group B that includes a second element that is one of D, F, CN, Si, Ge, P, B, or Se; where the first element is different from the second element.

The invention relates to heteroaromatic compounds which are suitable for use in electronic devices, and to electronic devices, in particular organic electroluminescent devices, containing said compounds

The invention relates to an organic molecule, in particular for the application in optoelectronic devices. According to the invention, the organic molecule is represented by a plurality of units, wherein each unit includes or consists of a structure represented by Formula IIIe-0

##STR00001##

wherein
Q.sup.1 is selected from the group consisting of C and CR.sup.III;
Q.sup.2 is selected from the group consisting of C and CR.sup.II;
Q.sup.3 is selected from the group consisting of C and CR.sup.I;
Q.sup.4 is selected from the group consisting of C and CR.sup.1;
wherein
at least one substituent selected from the group consisting of Q.sup.2 and Q.sup.3 is C; and
exactly one substituent selected from the group consisting of Q.sup.1 and Q.sup.4 is C, if only one substituent selected from the group consisting of Q.sup.2 and Q.sup.3 is C.

The invention relates to an organic molecule, in particular for the application in optoelectronic devices. According to the invention, the organic molecule has a plurality of units, wherein each unit includes or consists of a structure represented by Formula IV

##STR00001##

wherein m is an integer from 2 to 6; n = 0 or 1; and X is at each occurrence independently 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(0) and S(O).sub.2.

A compound of a first ligand L.sub.A of Formula I, is provided. In Formula I, moieties A and B are each a monocyclic ring or a polycyclic fused-ring system; Z.sup.1 to Z.sup.4 are each C or N; K is a direct bond, O, or S; each R.sup.A and R.sup.B is independently a hydrogen or a General Substituent; at least one R.sup.A or R.sup.B is R*, wherein R* has a structure of Formula II, —L—GeR.sup.1R.sup.2R.sup.3; L is a direct bond or an organic linker; and L.sub.A is coordinated to a metal M by the dashed lines; and metal M is selected from Ir, Rh, Re, Ru, Os, Pt, Pd, Ag, Au, or Cu.

##STR00001##

A compound comprising a ligand L.sub.A comprising a moiety L having a structure of Formula I

##STR00001##

is provided. In Formula I, L.sub.A coordinated to a metal M; A.sup.1 is selected from B, N, P, P═O, P═S, Al, Ga, SiR″, GeR″, and SnR″; where rings A, B, and C are 5- or 6-membered rings; Y.sup.1, Y.sup.2, and Y.sup.3 are selected from direct bonds, the metal M, and a variety of linkers; a+b+c=2 or 3; and one of a number of specific conditions is met. OLED devices, consumer products, and formulations including the compound are also provided.

Provided are a color conversion composition which contains at least one kind of compound represented by a specific general formula, a compound which is used in the color conversion composition and represented by a specific general formula, and a light emitting device which has a color conversion portion consisting of the color conversion composition and a light source.

An electro-optic element includes a first substrate defining first and second surfaces and a second substrate defining third and fourth surfaces. A first electrically conductive layer is disposed on the second surface and a second electrically conductive layer is disposed on the third surface. An electrochromic medium is disposed in a cavity between the first and second substrates, the electrochromic medium including an anodic component and a cathodic component. At least the anodic component is configured to reversibly attenuate transmittance of light having a wavelength within a predetermined wavelength range when in an electrochemically activated state. The anodic component includes a substituted ketal phenazine compound.

Provided is an electroluminescent device. The electroluminescent device includes an anode, a cathode, and an organic layer disposed between the anode and the cathode, wherein the organic layer includes a first metal complex of a ligand having a structure represented by Formula 1 and a first compound having a structure represented by Formula 2. The novel material combination comprising the first metal complex and the first compound can be used in an emissive layer in an electroluminescent device. The novel material combination can enable the novel electroluminescent device to obtain a darker red color, a lower voltage, higher efficiency, and a longer lifetime and can provide better device performance. Further provided are an electronic device and a compound combination.

A compound of Formula Ir(L.sub.A)(L.sub.B)(L.sub.C) is disclosed. In Formula Ir(L.sub.A)(L.sub.B)(L.sub.C), L.sub.A has Formula I,

##STR00001##

L.sub.B has Formula II,

##STR00002##

L.sub.C is a monoanionic bidentate ligand that does not comprise a phenylpyridine ligand; and each of L.sub.A, L.sub.B, and L.sub.C is different. Each of moieties A, C, and D is independently a monocyclic ring or a polycyclic fused ring structure or 5-membered and/or 6-membered rings; each of X.sup.1 to X.sup.6 is C or N; each of Z.sup.1 and Z.sup.2 is C or N; at least one of Z.sup.1 and Z.sup.2 is N; each R.sup.A, R.sup.B, R.sup.C, and R.sup.D is independently a hydrogen or a General Substituent; and any two adjacent substituents can be joined or fused together to form a ring. Formulations, OLEDs, and consumer products including the compound are also disclosed.