A light-emitting material comprising a benzonitrile derivative of the following general formula , wherein R 1 and R 5 are a hydrogen atom or a deuterium atom, wherein R 4 represents a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a nitro group, a linear or branched alkyl group of 1 to 6 carbon atoms, a cycloalkyl group of 5 to 10 carbon atoms, a linear or branched alkenyl group of 2 to 6 carbon atoms, a linear or branched alkyloxy group of 1 to 6 carbon atoms, a cycloalkyloxy group of 5 to 10 carbon atoms, an aromatic hydrocarbon group, an aromatic heterocyclic group, a condensed polycyclic aromatic group, an aryloxy group, or a disubstituted amino group substituted with a group selected from an aromatic hydrocarbon group, an aromatic heterocyclic group, and a condensed polycyclic aromatic group, wherein R 2 and R 3 represent a carbazol-9-yl group which may be substituted with a cyano group, an alkyl group of 1 to 4 carbon atoms, an aromatic hydrocarbon group, an aromatic heterocyclic group, or a disubstituted amino group substituted with an aromatic hydrocarbon group, wherein the alkyl group, the cycloalkyl group, the alkenyl group, the alkyloxy group and the cycloalkyloxy group may be substituted with a group selected from a deuterium atom, a cyano group, a nitro group, a halogen atom, a linear or branched alkyloxy group of 1 to 6 carbon atoms, an aryloxy group, an arylalkyloxy group, an aromatic hydrocarbon group, a condensed polycyclic aromatic group and an aromatic heterocyclic group, and wherein the aromatic hydrocarbon groups, the aromatic heterocyclic groups, the condensed polycyclic aromatic group and the aryloxy group may be substituted with a group selected from a deuterium atom, a cyano group, a nitro group, a halogen atom, a linear or branched alkyl group of 1 to 6 carbon atoms, a linear or branched alkyloxy group of 1 to 6 carbon atoms, a linear or branched alkenyl group of 2 to 6 carbon atoms, an aryloxy group, an arylalkyloxy group, an aromatic hydrocarbon group, a condensed polycyclic aromatic group, an aromatic heterocyclic group, an arylvinyl group, an acyl group, and a disubstituted amino group substituted with a substituent selected from an alkyl group, an aromatic hydrocarbon group, a condensed polycyclic aromatic group, an aralkyl group, an aromatic heterocyclic group, and an alkenyl group. wherein R 1 and R 5 are a hydrogen atom or a deuterium atom, wherein R 4 represents a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a nitro group, a linear or branched alkyl group of 1 to 6 carbon atoms, a cycloalkyl group of 5 to 10 carbon atoms, a linear or branched alkenyl group of 2 to 6 carbon atoms, a linear or branched alkyloxy group of 1 to 6 carbon atoms, a cycloalkyloxy group of 5 to 10 carbon atoms, an aromatic hydrocarbon group, an aromatic heterocyclic group, a condensed polycyclic aromatic group, an aryloxy group, or a disubstituted amino group substituted with a group selected from an aromatic hydrocarbon group, an aromatic heterocyclic group, and a condensed polycyclic aromatic group, wherein R 2 and R 3 represent a carbazol-9-yl group which may be substituted with a cyano group, an alkyl group of 1 to 4 carbon atoms, an aromatic hydrocarbon group, an aromatic heterocyclic group, or a disubstituted amino group substituted with an aromatic hydrocarbon group, wherein the alkyl group, the cycloalkyl group, the alkenyl group, the alkyloxy group and the cycloalkyloxy group may be substituted with a group selected from a deuterium atom, a cyano group, a nitro group, a halogen atom, a linear or branched alkyloxy group of 1 to 6 carbon atoms, an aryloxy group, an arylalkyloxy group, an aromatic hydrocarbon group, a condensed polycyclic aromatic group and an aromatic heterocyclic group, and <EOS>