An organic light-emitting device includes a condensed cyclic compound represented by Formula 1, where at least one of X.sub.4 to X.sub.11 is C(R.sub.x), and R.sub.x is a group represented by Formula 2: ##STR00001## The condensed cyclic compound represented by Formula 1 has a planar conformation because of the single bond linking the 8 and 8′ positions of the spirobifluorene moiety. Accordingly, the condensed cyclic compound may provide the organic light-emitting device with suitable hole mobility and thermal stability.

An organic electroluminescence device includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region. The hole transport region includes a monoamine compound represented by the following Formula 1:

##STR00001##

An organic electroluminescence device includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region. The hole transport region includes a monoamine compound represented by the following Formula 1:

##STR00001##

A novel organic compound is provided. An organic compound represented by General Formula (G1) below is provided. Note that in General Formula (G1), one of A and B represents a group represented by General Formula (g1) below, and the other of A and B, R1 to R8, and R11 to R14 each independently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, a cyclic hydrocarbon group having 3 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a cyano group, a halogen, a haloalkyl group having 1 to 6 carbon atoms, and a substituted or unsubstituted aromatic hydrocarbon group having 6 to 60 carbon atoms. R9 and R10 each independently represent any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, a cyclic hydrocarbon group having 3 to 6 carbon atoms, an alkoxy group having 1 to 6 carbon atoms, a cyano group, a halogen, a haloalkyl group having 1 to 6 carbon atoms, and a substituted or unsubstituted phenyl group. Ar represents a substituted or unsubstituted aryl group having 6 to 13 carbon atoms.

##STR00001##

The invention relates to compounds comprising functional substituents in a specific spatial arrangement, devices containing same, and the preparation and use thereof.

The invention relates to compounds comprising functional substituents in a specific spatial arrangement, devices containing same, and the preparation and use thereof.

The present invention relates to bisbenzofuran-fused 2,8-diaminoindeno[1,2-b]fluorene derivatives and related compounds of formula (1) as materials for organic electroluminescent devices (OLEDs).

The present invention relates to bisbenzofuran-fused 2,8-diaminoindeno[1,2-b]fluorene derivatives and related compounds of formula (1) as materials for organic electroluminescent devices (OLEDs).

Disclosed are a light-emitting device and a method of manufacturing the same. The light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode and including a quantum dot including a first ligand bonded to a surface thereof; and a charge transport layer including an inorganic nanoparticle including a second ligand bonded to a surface thereof, wherein an interface between the emission layer and the charge transport layer includes a cross-link in which the first ligand on the surface of the quantum dot and the second ligand on the surface of the inorganic nanoparticle are linked by a cross-linking agent.

Disclosed are a light-emitting device and a method of manufacturing the same. The light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode and including a quantum dot including a first ligand bonded to a surface thereof; and a charge transport layer including an inorganic nanoparticle including a second ligand bonded to a surface thereof, wherein an interface between the emission layer and the charge transport layer includes a cross-link in which the first ligand on the surface of the quantum dot and the second ligand on the surface of the inorganic nanoparticle are linked by a cross-linking agent.