An organic compound, an organic photoelectric device, an image sensor, and an electronic device, the organic compound being represented by Chemical Formula 1:

##STR00001## wherein, in Chemical Formula 1, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 are each independently a hydrogen atom, a substituted or unsubstituted C1-C4 alkyl group, a substituted or unsubstituted C1-C4 alkoxy group, or a substituted or unsubstituted C1-C4 alkylthio group, and A is a functional group including a heteroaryl group that includes at least one sulfur atom.

Provided are a condensed cyclic compound and an organic light-emitting device including the same.

A compound comprising a first ligand L.sub.A having a Formula selected from:

##STR00001##

is disclosed. In the Formulas rings B and C are 5-membered or 6-membered aromatic or heteroaromatic ring; Z.sup.1, Z.sup.2, X.sup.1, X.sup.2, X.sup.3, X.sup.4, X.sup.5, and X.sup.6 are each C or N, but X.sup.1, X.sup.2, X.sup.3, or X.sup.4 is C when it forms a direct bond to Z.sup.2; Y is selected from CRR′, NR′, O, S, and Se; R, R′, R.sup.A, R.sup.B, R.sup.C, and R.sup.D are each selected from a variety of substituents; the ligand L.sub.A is coordinated to a metal M by the dashed lines, and optionally to other ligands. Organic light emitting devices and consumer products containing the compounds are also disclosed.

An organic electroluminescence device of an embodiment includes a first electrode, a second electrode opposite the first electrode, and an emission layer between the first electrode and the second electrode, wherein the emission layer includes a polycyclic compound represented by Formula 1, thereby showing improved emission efficiency. ##STR00001##

The present invention provides an organic electroluminescent device having a capping layer comprising a material having a high absorption coefficient in the wavelength range of 400 nm to 410 nm and no absorption in the respective wavelength ranges of blue, green and red in order to prevent the light in the 400 nm to 410 nm wavelength of sunlight from being absorbed and affecting the materials inside the device and to improve the light extraction efficiency. Since the arylamine compound having a specific structure in the present invention is excellent in stability and durability of the thin film, an organic EL device obtained by selecting amine compounds with high absorbance in the absorption spectrum at concentration 10.sup.−5 mol/L at wavelengths of 400 nm to 410 nm, from amine compounds having a specific benzoazole ring structure with a high refractive index as a material of a capping layer, exhibits good characteristics.

Provided are a phenanthrene compound and use thereof, wherein the phenanthrene compound has the structure represented by Formula I. The phenanthrene organic compound contains a heteroarylamine structure, and at least one of Ar.sub.2 and Ar.sub.3 is selected from substituted or unsubstituted C2-C20 nitrogen-containing fused-ring heteroaryl having an electron-withdrawing property. All active sites of phenanthrene are substituted and passivated, and the phenanthrene has a stable chemical structure and high thermal stability. The phenanthrene compound thus has a high glass transition temperature and a high refractive index in the visible-light field, and when applied to the CPL layer of an organic electroluminescent device, can effectively improve the light extraction efficiency of the organic electroluminescent device, thereby improving the luminescence efficiency and service life of the organic electroluminescent device.

The present invention is to provide a photoelectric conversion element with the electric field strength dependence of a photoelectric conversion efficiency suppressed. In addition, an imaging element, an optical sensor, and a compound are provided. The photoelectric conversion element includes a conductive film, a photoelectric conversion film, and a transparent conductive film in this order, in which the photoelectric conversion film contains a compound represented by Formula (1).

##STR00001##

An organic light-emitting device and a heterocyclic compound, the device including a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer, wherein the emission layer includes a compound represented by Formula 1A or a compound represented by Formula 1B: ##STR00001##

A photoelectric conversion module includes photoelectric conversion elements electrically coupled. The photoelectric conversion elements each sequentially include first electrode, photoelectric conversion layer, and second electrode. The photoelectric conversion module includes first photoelectric conversion element, second photoelectric conversion element, coupling portion to couple the first and second photoelectric conversion elements in series, first partition portion, and second partition portion. The first electrode or the second electrode forming the first photoelectric conversion element includes a contact region in contact with the coupling portion. A value of X/(Y−X) is 0.3 or greater, where X denotes a length of the contact region and Y denotes a predetermined length in the coupling direction around the contact region.

An organic electroluminescent device having an anode, a cathode, and a light emitting layer between the anode and the cathode, in which the light emitting layer contains a first organic compound, a second organic compound, and a third organic compound that satisfy the following expression (A), the second organic compound is a delayed fluorescent material, and the third organic compound is a light emitting material, is capable of enhancing the light emission efficiency. E.sub.S1(A), E.sub.S1(B) and E.sub.S1(C) represent a lowest, singlet excitation energy level of the first, second and third organic compound, respectively.

E.sub.S1(A)>E.sub.S1(B)>E.sub.S1(C)   (A)