Organic electroluminescent materials and devices
A luminescent compound that is a metal complex with ligands containing pyrrole or indole in the structure, where the pyrrole or indole has an aromatic substituent that has at least one ortho substitution is disclosed.
1. A compound selected from the group consisting of:
2. A first device comprising a first organic light emitting device, the first organic light emitting device comprising:
an anode;
a cathode; and
an organic layer, disposed between the anode and the cathode, comprising a compound selected from the group consisting of:
3. A formulation comprising the compound selected from the group consisting of:
4. The first device of claim 2 , wherein the first device is a consumer product.
5. The first device of claim 4 , wherein the consumer product is one of a flat panel display, a computer monitor, a medical monitor, a television, a billboard, a light for interior or exterior illumination and/or signaling, a heads up display, a fully transparent display, a flexible display, a laser printer, a telephone, a cell phone, a personal digital assistant (PDA), a laptop computer, a digital camera, a camcorder, a viewfinder, a micro-display, a 3-D display, a vehicle, a large area wall, theater or stadium screen, or a sign.
6. The first device of claim 2 , wherein the organic layer is an emissive layer and the compound is an emissive dopant.
7. The first device of claim 2 , wherein the organic layer is an emissive layer and the compound is a non-emissive dopant.
8. The first device of claim 2 , wherein the organic layer further comprises a host.
9. The first device of claim 8 , wherein the host comprises a triphenylene containing benzo-fused thiophene or benzo-fused furan;
wherein any substituent in the host is an unfused substituent independently selected from the group consisting of C n H n+1 , OC n H n+1 , OAr 1 , N(C n H n+1 ) 2 , N(Ar 1 )(Ar 2 ), CH═CH—C n H n+1 , C≡C—C n H 2n+1 , Ar 1 , Ar 1 —Ar 2 , and C n H 2n —Ar 1 , or the host has no substitution;
wherein n is from 1 to 10; and
wherein Ar 1 and Ar 2 are independently selected from the group consisting of benzene, biphenyl, naphthalene, triphenylene, carbazole, and heteroaromatic analogs thereof.
10. The first device of claim 8 , wherein the host comprises at least one chemical group selected from the group consisting of carbazole, dibenzothiophene, dibenzofuran, dibenzoselenophene, azacarbazole, aza-dibenzothiophene, aza-dibenzofuran, and aza-dibenzoselenophene.
11. The first device of claim 8 , wherein the host is selected from the group consisting of:
and combinations thereof.
12. The first device of claim 8 , wherein the host comprises a metal complex.