Abstract: A light-emitting device, a method of manufacturing the light-emitting device, and a method of operating the light-emitting device. The light-emitting device includes a first conductive layer comprising gold, an interlayer disposed on a surface of the first conductive layer, the interlayer comprises an inorganic salt, and a plurality of light-emitting group represented by Formula 1 chemically bonded to the surface of the first conductive layer. Formula 1 *—A3—(A1)m1—(A2)m2 A detailed description of Formula 1 is the same as described in this specification.

Abstract: 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. wherein the substituents in Formula 1 are as described in the present specification.

Abstract: An organometallic compound represented by Formula 1: wherein, M is a transition metal, X11 is N or C(R11), X12 is N or C(R12), at least one of X11 and X12 is N, ring CY2, ring CY31, ring CY32, and ring CY4 are each independently a C3-C60 carbocyclic group or a C1-C60 heterocyclic group, Y2 to Y4 are each independently C or N, A2 to A4 are each independently a chemical bond, O, or S, a1 to a3 are each independently an integer from 1 to 3, and the remaining substitutions are as provided in the detailed description.

Abstract: There are provided a composition, a light-emitting device including the composition, and an electronic apparatus including the light-emitting device, wherein the composition includes a first compound including at least one pyrrole-containing condensed cyclic group and a silicon-containing group, and not including an electron-transporting moiety, and a second compound including an azine group including at least one nitrogen, and not including a silicon-containing group.