A compound of Chemical Formula 1:

##STR00001##

where R1 is a substituted or unsubstituted aryl group; R2 is LAr1; L is a direct bond or a substituted or unsubstituted arylene or heteroarylene group; Ar1 is Chemical Formula A:

##STR00002##

wherein in Chemical Formula A: any one of Y1, Y2 and Y7 to Y11 is a moiety bonded to L, and the others of Y1, Y2 and Y7 to Y11 which are not bonded to L, and R3 to R10 are as defined in the specification, where Chemical Formula 1 includes at least one deuterium; and an organic light emitting device including the same. When a compound of Chemical Formula 1 is included in an organic material layer of an organic light emitting device, the device exhibits lower driving voltage, improves light efficiency, and improved service life characteristics.

A color conversion sheet includes at least a color conversion layer, a color conversion layer, a resin layer, and a base layer, the color conversion layer contains a light-emitting material (a) that exhibits light emission with a peak wavelength observed in a region of 500 nm or more and less than 580 nm, the color conversion layer contains a light-emitting material (b) that exhibits light emission with a peak wavelength observed in a region of 580 nm to 750 nm, a haze value of the color conversion sheet is 20% to 90%, and n.sub.A1, n.sub.A2 and n.sub.B satisfy relationships (1) or (2), where n.sub.A1 is a refractive index of the color conversion layer, n.sub.A2 is a refractive index of the color conversion layer, and n.sub.B is a refractive index of the resin layer:
n.sub.A1>n.sub.B and n.sub.A2>n.sub.B(1)
n.sub.A1<n.sub.B and n.sub.A2<n.sub.B.(2)

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

A compound of Formula I, ##STR00001##
or Formula II, ##STR00002##
is provided. In Formulae I and II, M is Pt or Pd; each R.sup.A, R.sup.A, R.sup.A, R.sup.B, R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 is hydrogen or one of the General Substituents; R.sup.1 is one of the General Substituents; at least one of R.sup.A, R.sup.A, and R.sup.B is not hydrogen; any two of R.sup.A, R.sup.A, R.sup.A, R.sup.B, R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 may be joined or fused together to form a ring; and R.sup.A, R.sup.A, and R.sup.B together comprise at least one heterocyclic group or at least two carbocyclic groups; with the proviso that at least one of R.sup.A and R.sup.A comprises a cyclic group when R.sup.B is one of five specific moieties.

The invention relates to small, conjugatable, orthogonal and tunable fluorophores for imaging of small bioactive molecules. The invention further relates to processes for the preparation of the compounds, and uses of the compounds in therapeutic, diagnostic, surgery and analytical applications. The invention provides a compound of formula (I), a derivative or a salt thereof. Wherein X is selected from the group consisting of NH, O, S, SeR5R6, CR7R8; R1 is selected from the group consisting of amines, alcohols, thiols, thiophenols, selenols, selenophenols and aryl groups; R2 and R3 are independently H or a halogen; R4 tis either H, nitro or cyano; R5 is either absent or methyl or oxygen; R6 is either absent or methyl or oxygen; and R7 and R8 are independently selected from the group consisting of linear or cyclic alkyl groups containing halogen, amino, cyano or carboxylic ester substituents, and alkyl aryl groups. ##STR00001##

The present disclosure relates to an organometallic compound in Formula below and an organic light emitting diode and an organic light emitting device including the organometallic compound. The organometallic compound provides high emitting efficiency and longer lifespan, and the organic light emitting diode and the organic light emitting device have advantages in the emitting efficiency and the lifespan. ##STR00001##

The present disclosure relates to compounds of Formula (I) and their methods of use thereof. The compounds of Formula (I) are conjugated oligoelectrolytes and are suitable for use as a membrane probe to label and/or detect cells and/or lipid vesicles and thus in flow cytometry applications. The present disclosure also relates to a flow system for detecting and/or quantifying cells and/or lipid vesicles.

##STR00001## ##STR00002## ##STR00003## ##STR00004## ##STR00005## ##STR00006## ##STR00007##

High performance OLED that includes deuterated compounds in the emissive layer are disclosed. The OLED includes an anode; a cathode; and an emissive layer, disposed between the anode and the cathode. In the OLED, the emissive layer includes a first phosphorescent emitter and a first host; the first phosphorescent emitter is a metal complex; the first host is partially or fully deuterated; and at least one additional condition is true.

Provided are organometallic compounds comprising a central metal atom and a ligand comprising at least four rings which are fused together, wherein at least one ring is a 6-membered aromatic ring. Also provided are formulations comprising these organometallic compounds. Further provided are organic light emitting devices (OLEDs) and related consumer products that utilize these organometallic compounds.

Disclosed are a heterocyclic compound of Chemical Formula 1 and an organic light emitting device including the same. When the heterocyclic compound is used as a material for an organic material layer (particularly, an electron transport layer or a charge generation layer) of an organic light emitting device, the performance of the organic light emitting device can be improved.