Disclosed embodiments concern a phosphorus-containing heterocyclic compound according to the formula ##STR00001##
One exemplary compound is ##STR00002##
Certain embodiments fluoresce with excitation by light. The compounds are useful as fluorescent probes and as bioisosteres. In some embodiments, the compounds are bioisosteres of alpha-quinolones. Also disclosed is a method for making the compounds.

This invention discloses iridium complexes with benzothienoquinoline, benzofuroquinoline, benzoselenophenoquinoline, and benzosiloloquinoline ligands. These complexes can be used as phosphorescent emitters in OLEDs.

An organic molecule is disclosed having a structure of Formula I:

##STR00001## wherein n is 0 or 1; m=1?n; X is N or CR.sup.X; V is N or CR.sup.V; Z is N or CR.sup.II; R 1 and R 2 are independently from each other selected from the group consisting of: C.sub.1-C.sub.5-alkyl, which is optionally substituted with one or more substituents R.sup.6; C.sub.6-C.sub.60-aryl, which is optionally substituted with one or more substituents R.sup.6, and C.sub.3-C.sub.57-heteroaryl, which is optionally substituted with one or more substituents R.sup.6.

The invention relates to an organic molecule, comprising or consisting of Formula A: ##STR00001## wherein M.sup.TADF represents a TADF moiety, M.sup.NRCT represents a near-range charge transfer (NRCT) emitter moiety, and L represents a divalent bridging unit that links M.sup.TADF and M.sup.NRCT and is linked to M.sup.TADF and to M.sup.NRCT via a single bond each. Furthermore, the present invention relates to the use of such organic molecule as a luminescent emitter in an optoelectronic device.

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

Provided are an organic electroluminescent device and a use thereof. The organic electroluminescent device comprises a metal complex having particular spectral characteristics (that is, satisfying requirements on D and AR), and the metal complex can better approach the commercially pursued BT.2020 luminescence. Compared with a metal complex that does not satisfy the requirements on D and AR, the metal complex is applied to the organic electroluminescent device to make the obtained organic electroluminescent device have higher device efficiency and more saturated green light emission, can better satisfy the BT.2020 luminescence requirement of the market, and can still maintain high device performance, especially device efficiency, when approaching the BT.2020 luminescence, and the metal complex basically reaches maximum efficiency of the device. The organic electroluminescent device comprising the preceding metal complex has a broad commercial application prospect and can achieve more saturated luminescence. Further provided is an electronic assembly comprising the organic electroluminescent device.

A compound having a formula of M(L.sub.A).sub.p(L.sub.B).sub.q(L.sub.C).sub.r, where L.sub.A has a structure of Formula I,

##STR00001##

L.sub.B is a bidentate ligand; and L.sub.C has a structure of Formula II,

##STR00002##

is provided. In Formula I and Formula II, the compound can be homoleptic or heteroleptic and can include up to three different ligands; K.sup.3 and K.sup.4 are each independently a direct bond, O, S, N(R.sup.), P(R.sup.), B(R.sup.), C(R.sup.)(R.sup.), or Si(R.sup.)(R.sup.); each of moiety A and moiety B represents a monocyclic ring or a polycyclic, fused-ring structure; each of Z.sup.1 and Z.sup.2 is C or N; and at least one of R.sup.A, R.sup.B, R.sup.C1, R.sup.C2, or R.sup.C3 comprises a structure of Formula III,

##STR00003##

In Formula III, L is bivalent organic linker, and Z is Si or Ge. Each R.sup.A, R.sup.B, R.sup.C1, R.sup.C2, and R.sup.C3 is independently hydrogen or a General Substituent, and each of R.sup.1, R.sup.2, and R.sup.3 is a General Substituent. Formulations, OLEDs, and consumer products including such compounds are also provided.

The present disclosure relates to the field of organic light-emitting materials, and more particularly, to a blue thermally activated delayed fluorescence material, a synthesis method thereof, and use thereof. The blue thermally activated delayed fluorescence material has a following structural formula: ##STR00001## the present disclosure provides a novel blue thermally activated delayed fluorescence material which has a lower singlet triplet energy level difference, a high RISC rate constant (kRISC), and a high photoluminescence quantum yield (PLQY) by finely adjusting a structure of electron acceptor units, making them have different abilities to accept electrons, thereby realizing fine adjustment of spectrum in the deep blue range.

A compound is disclosed that is selected from the group consisting of a structure having

##STR00001##

and a structure having

##STR00002##

The present disclosure provides polymerizable luminescent dyes useful for incorporation into polymers. The dyes and the polymers can be used in sensing and imaging applications, for example, to provide accurate and optionally long term measurements of glucose in vivo. The present disclosure also provides sensors including the polymers described herein. The sensors can be implanted into a tissue of a subject and used for long-term or short-term continuous and semi-continuous collection of data of various biochemical analytes, optionally without the use of implantable hardware of any type and/or enzymatic and electrochemical detection methods.