Novel organic compounds comprising a substituted anthracene or acridine ligand are provided. In particular, the compound includes an anthracene ligand substituted at the 9 and 10 positions. The compound may be used in organic light emitting devices to provide devices having improved efficiency and lifetime. In particular, these compounds may be especially beneficial for use in blue-emitting OLEDs.

Platinum, palladium, and gold complexes suitable for use as phosphorescent emitters or as delayed fluorescent and phosphorescent emitters in organic light emitting materials (OLEDs) having a structure of Formula VII or Formula IX ##STR00001##

The present disclosure relates to an emission layer including an organometallic compound and various types of host materials, and an organic light emitting diode including the same.

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, PO, PS, 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.

A light-emitting device including an organometallic compound represented by Formula 1, an electronic apparatus including the light-emitting device, and the organometallic compound represented by Formula 1 are provided:

##STR00001##

A compound of Formula Ir(L.sub.A).sub.x(L.sub.B).sub.y(L.sub.C).sub.z is provided where x and y are independently 1 or 2; z is 0 or 1; and x+y+z=3; first ligand L.sub.A includes a structure of Formula I,

##STR00001##

ligand L.sub.B includes a structure of Formula II:

##STR00002##

and ligand L.sub.C is a bidentate ligand. In the compounds, moiety B is a polycyclic fused ring system comprising at least four rings; each of moiety C and moiety D is a monocyclic ring or a polycyclic fused ring system; each of X.sup.1 to X.sup.4 and Z.sup.1 to Z.sup.6 is C or N; L.sup.0 is a direct bond or a linking group; Y.sup.A is a linking group; each substituent is hydrogen or a General Substituent defined herein; and any two substituents may be joined or fused to form a ring. Formulations, OLEDs, and consumer products containing the compound are also provided.

Glucose-sensing luminescent dyes, polymers, and sensors are provided. Additionally, systems including the sensors and methods of using these sensors and systems are provided.

Disclosed are organic electrooptic materials. The electrooptic materials are functionalized by novel methods and structures. The electrooptic materials are structured with a head and a tail where the head and tail sequentially assemble into a non-centrosymmetric ordered array. The electrooptic materials are further structured in covalently bonded dimer pairs where one of the pairs is zwitterionic. The non-centrosymmetric ordered array bonds directly to electrodes which allows for efficient application of the electric field. The organic electrooptic materials disclosed offer greater hyperpolarizability, greater bandwidth, reduced operating voltage with less optical loss.

An organic light-emitting element including an organic compound layer containing an organometallic complex that includes a ligand in which a naphthoisoquinoline ring and a naphthalene ring are bonded in a cyclic manner and thus has a small full width at half maximum and high light-emission efficiency.

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 Ir atom; A.sup.1 is selected from B, N, P, PO, PS, 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 Ir atom, 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.