An organic light emitting diode (OLED) includes at least one emitting material layer (EML) disposed between two electrodes and including a first compound of a pyrimidine-based organic compound substituted with at least one electron-withdrawing group and a second compound of an organic compound having a tetracene-based core. The OLED can be included in an organic light emitting device. The first compound and the second compound can be the same emitting material layer or adjacently disposed emitting material layers. The OLED can lower its driving voltage and improve its luminous efficiency utilizing the advantages of the first and second compounds by adjusting energy levels between the first and second compounds.

Provided is a highly convenient, useful, or reliable novel organic compound represented by General Formula (G1), where A.sup.1 represents any of hydrogen, deuterium, an alkyl group having 1 to 13 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, an aryl group having 6 to 25 carbon atoms, a heteroaryl group having 2 to 25 carbon atoms, and a diarylamino group; Ar.sup.1 to Ar.sup.4 each independently represent any of an aryl group having 6 to 25 carbon atoms, a heteroaryl group having 2 to 25 carbon atoms, and a diarylamino group; and R.sup.1 to R.sup.6 each independently represent any of hydrogen, deuterium, an alkyl group having 1 to 13 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, an aryl group having 6 to 25 carbon atoms, a heteroaryl group having 2 to 25 carbon atoms, and an alkoxy group having 1 to 13 carbon atoms.

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Provided are a heterocyclic compound represented by Formula 1, an organic light-emitting device including the same, and an electronic apparatus including the organic light-emitting device:

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The substituents in Formula 1 are the same as described in the detailed description.

A light-emitting element includes a first electrode, a second electrode disposed on the first electrode, and at least one functional layer disposed between the first electrode and the second electrode and including an amine compound represented by Formula 1. The light-emitting element may exhibit high efficiency and long lifetime characteristics.

##STR00001##

An light emitting device of the present embodiments includes oppositely disposed first electrode and second electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one among the plurality of organic layers includes a fused polycyclic compound represented by Formula 1 below, thereby showing improved emission efficiency:

##STR00001##

Ultra-narrow bandgap Non Fullerene Acceptors (NFAs) comprising an A-D-A′-D-A structure or an A-D-A′-D′-A′-D-A structure were designed, synthesized, and characterized (where A, A′ are organic acceptor moieties and D and D′ are organic donor moieties). Exemplary NFA materials have narrow bandgap (0.86 eV-0.99 eV). Photovoltaic devices and Near Infrared photodetector devices based on these compositions above were synthesized with controlled amounts of solvents and additives. A photodetector having a specific detectivity of 2.41×10.sup.12 Jones (D*) at a wavelength of 1040 nm was achieved.

Disclosed are a zinc oxide-polycyclic aromatic hydrocarbon quantum dot capable of blue light emission in which ZnO is combined with a polycyclic aromatic hydrocarbon having a blue light emitting characteristic to realize a quantum dot of a core-shell structure and electron emission transition is induced to proceed within the polycyclic aromatic hydrocarbon so that the purity of blue light emission is improved, and a manufacturing method thereof. The zinc oxide-polycyclic aromatic hydrocarbon quantum dot capable of blue light emission includes a core-shell structure of zinc oxide-polycyclic aromatic hydrocarbon (ZnO-PAH) quantum dot in which the ZnO quantum dot and the PAH are combined, the ZnO-PAH quantum dot includes an energy level in a form of a Type II structure or a quasi-Type II structure.

Provided are an organic electronic element including an anode, a cathode, and an organic material layer between the anode and the cathode, and an electronic device including the organic electronic element, wherein the organic material layer includes each of the compounds represented by Formulas 1 and 2 and the driving voltage of the organic electronic element is lowered, and the luminous efficiency and lifetime of the element are improved.

Using a perovskite-type compound, an inexpensive host material having a high carrier mobility can be provided. Using a perovskite-type compound as a host material, an inexpensive organic light-emitting device having a high emission efficiency can be realized.

A light emitting element includes a first electrode, a second electrode disposed on the first electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer may include a hole transporting host, an electron transporting host, a phosphorescent sensitizer, and a delayed fluorescent dopant. The delayed fluorescent dopant may have a greater absolute value of the HOMO energy level than the hole transporting host. Accordingly, the light emitting element including the delayed fluorescent dopant in an embodiment may exhibit long lifespan.