Organic light-emitting device
An organic light-emitting device includes an emission layer and an electron transport layer. The emission layer includes at least one compound represented one of Formula 1, Formula 2 and/or Formula 3. The electron transport layer includes at least one compound represented by Formula 4 and/or Formula 5. An organic light-emitting device including the emission layer and the electron transport layer has high emission efficiency and an improved lifetime.
1. An organic light-emitting device comprising:
a first electrode;
a second electrode; and
an organic layer between the first electrode and the second electrode,
wherein the organic layer comprises:
an emission layer comprising:
a dopant comprising Compound PGD:
and
at least one of Compounds 1, 6, 41, 44, 85, 96 and 110:
and
an electron transport layer comprising Compound 220:
2. The organic light-emitting device of claim 1 , wherein the organic layer further comprises at least one of an electron injection layer, a functional layer having both electron injection and electron transport capabilities, a hole injection layer, a hole transport layer, or a functional layer having both hole injection and hole transport capabilities,
wherein:
the emission layer comprises a red emission layer, a green emission layer, a blue emission layer, and a white emission layer, and
at least one of the red emission layer, the green emission layer, the blue emission layer and the white emission layer comprises a phosphorescent compound.
3. The organic light-emitting device of claim 2 , wherein at least one of the hole injection layer, the hole transport layer, and the functional layer having hole injection and hole transport capabilities comprises a charge-generating material.
4. The organic light-emitting device of claim 3 , wherein the charge-generating material is a p-dopant.
5. The organic light-emitting device of claim 4 , wherein the p-dopant is a quinone derivative.
6. The organic light-emitting device of claim 4 , wherein the p-dopant is a metal oxide.
7. The organic light-emitting device of claim 4 , wherein the p-dopant is a cyano group-containing compound.
8. The organic light-emitting device of claim 1 , wherein the electron transport layer further comprises a metal complex.
9. The organic light-emitting device of claim 8 , wherein the metal complex is a lithium (Li) complex.
10. The organic light-emitting device of claim 8 , wherein the metal complex is a lithium quinolate (LiQ) compound or Compound 203:
Compound 203
11. The organic light-emitting device of claim 1 , wherein the organic layer is formed by a wet process.
12. A flat panel display device, comprising a thin-film transistor and the organic light-emitting device of claim 1 , wherein the first electrode of the organic light-emitting device is electrically connected to a source electrode or a drain electrode of the thin-film transistor.