Organic light-emitting diode device and compound for charge generation layer included therein

An organic light-emitting diode device comprising:

• a first electrode;
• a second electrode disposed opposite to the first electrode;
• m light-emitting units (where m is an integer of 2 or more) disposed between the first electrode and the second electrode, and comprising at least one light-emitting layer;
• and
• m-1 charge generation layers each interposed between two adjacent light-emitting units of the m light-emitting units;
• wherein at least one of the m-1 charge generation layers comprises a compound represented by Formula 1 below:
• Y2Y1B-M(X)a Formula 1
• wherein:
• M is a metal selected from the group consisting of Group 1 metals, Group 2 metals, transition metals, post-transition metals, lanthanides, and actinides, which have a work function of 4.0 eV or less;
• X is a halogen element selected from the group consisting of F, Cl, Br, and I;
• a is a natural number ranging from 1 to 4;
• and
• Y1 and Y2 are the same or different, and are each independently one or more selected from the group consisting of a halogen, a hydroxyl group, a nitro group, a cyano group, an amine group, a C1-C40 alkyl group, a C6-C40 aryl group, and a 5- to 40-membered heteroaryl group, or they may be bonded to an adjacent group to form a condensed ring, provided that at least one of Y1 and Y2 is a C6-C40 aryl group or a 5- to 40-membered heteroaryl group;
• and
• wherein the alkyl group, the aryl group, and the heteroaryl group are each unsubstituted or substituted with one or more substituents selected from the group consisting of a halogen, a cyano group, a nitro group, a C1-C40 alkyl group, a C6-C40 aryl group, a 5- to 40-membered heteroaryl group, a C6-C40 aryloxy group, a C6-C40 arylphosphine oxide group, and a C6-C40 arylamine group, and the substituents may be the same or different if they are plural in number.