Organic electroluminescent materials and devices
A compound having the following formula Formula I, is disclosed. The compound is useful as an emitter in OLED applications.
1. A compound having the formula:
wherein L 1 is O;
wherein R B , R B′ , R C , and R D , each represents mono to a maximum allowable substitutions, or no substitution;
wherein each R B and R B′ is independently hydrogen, deuterium, nitrile, or a substituent selected from the group consisting of alkyl, cycloalkyl, aryl, heteroaryl, fluorinated variants thereof, and deuterated variants thereof, which may be further substituted by one or more alkyl, cycloalkyl, aryl, heteroaryl, nitrile, fluorinated variants thereof, or deuterated variants thereof;
wherein each R D is independently selected from the group consisting of hydrogen, deuterium, alkyl, cycloalkyl, aryl, fluorinated variants thereof, and deuterated variants thereof, which may be further substituted by one or more alkyl, cycloalkyl, aryl, fluorinated variants thereof, or deuterated variants thereof;
wherein R is alkyl, cycloalkyl, partially or fully fluorinated alkyl or cycloalkyl, partially or fully deuterated alkyl or cycloalkyl or a combination of both;
wherein each R A is independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, partially or fully fluorinated alkyl or cycloalkyl, partially or fully deuterated alkyl or cycloalkyl or a combination of both, and at least one R A is not hydrogen; and
wherein each R C is independently H or aryl which can be partially or fully deuterated, and which can be substituted by alkyl, aryl, partially or fully fluorinated alkyl or cycloalkyl, partially or fully deuterated alkyl or cycloalkyl or a combination of both.
2. The compound of claim 1 , wherein each of and R B′ is independently selected from the group consisting of hydrogen, deuterium, and a substituent selected from the group consisting of alkyl, cycloalkyl, aryl, heteroaryl, fluorinated variants thereof, and deuterated variants thereof, which may be further substituted by one or more alkyl, fluorinated alkyl, cycloalkyl, aryl, heteroaryl, fluorinated variants thereof, or deuterated variants thereof; and
each R D is independently selected from the group consisting of hydrogen, deuterium, alkyl, aryl, fluorinated variants thereof, and deuterated variants thereof, which may be further substituted by one or more alkyl, aryl, fluorinated variants thereof, or deuterated variants thereof.
3. The compound of claim 1 , wherein at least one R C is aryl.
4. An organic light emitting device (OLED) comprising:
an anode;
a cathode; and
an organic layer, disposed between the anode and the cathode, comprising a compound having the formula:
wherein L 1 is O;
wherein R B , R B′ , R C , and R D , each represents mono to a maximum allowable substitutions, or no substitution;
wherein each R B and R B′ is independently hydrogen, deuterium, nitrile, or a substituent selected from the group consisting of alkyl, cycloalkyl, aryl, heteroaryl, fluorinated variants thereof, and deuterated variants thereof, which may be further substituted by one or more alkyl, cycloalkyl, aryl, heteroaryl, nitrile, fluorinated variants thereof, or deuterated variants thereof;
wherein each R D is independently selected from the group consisting of hydrogen, deuterium, alkyl, cycloalkyl, aryl, fluorinated variants thereof, and deuterated variants thereof, which may be further substituted by one or more alkyl, cycloalkyl, aryl, fluorinated variants thereof, or deuterated variants thereof;
wherein R is alkyl, cycloalkyl, partially or fully fluorinated alkyl or cycloalkyl, partially or fully deuterated alkyl or cycloalkyl or a combination of both;
wherein each R A is independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, partially or fully fluorinated alkyl or cycloalkyl, partially or fully deuterated alkyl or cycloalkyl or a combination of both, and at least one R A is not hydrogen; and
wherein each R C is independently H or aryl which can be partially or fully deuterated, and which can be substituted by alkyl, aryl, partially or fully fluorinated alkyl or cycloalkyl, partially or fully deuterated alkyl or cycloalkyl or a combination of both.
5. The OLED of claim 4 , wherein the organic layer is an emissive layer and the compound is an emissive dopant or a non-emissive dopant.
6. The OLED of claim 4 , wherein the organic layer further comprises a host, wherein the host comprises at least one chemical group selected from the group consisting of metal complex, triphenylene, carbazole, dibenzothiophene, dibenzofuran, dibenzoselenophene, azatriphenylene, azacarbazole, aza-dibenzothiophene, aza-dibenzofuran, and aza-dibenzoselenophene.
7. The OLED of claim 4 , wherein the organic layer further comprises a host, wherein the host is selected from the group consisting of:
and combinations thereof.
8. A consumer product comprising an organic light emitting device (OLED) comprising:
an anode;
a cathode; and
an organic layer, disposed between the anode and the cathode, comprising a compound having the formula:
wherein L 1 is O;
wherein R B , R B′ , R C , and R D , each represents mono to a maximum allowable substitutions, or no substitution;
wherein each R B and R B′ is independently hydrogen, deuterium, nitrile, or a substituent selected from the group consisting of alkyl, cycloalkyl, aryl, heteroaryl, fluorinated variants thereof, and deuterated variants thereof, which may be further substituted by one or more alkyl, cycloalkyl, aryl, heteroaryl, nitrile, fluorinated variants thereof, or deuterated variants thereof;
wherein each R D is independently selected from the group consisting of hydrogen, deuterium, alkyl, cycloalkyl, aryl, fluorinated variants thereof, and deuterated variants thereof, which may be further substituted by one or more alkyl, cycloalkyl, aryl, fluorinated variants thereof, or deuterated variants thereof;
wherein R is alkyl, cycloalkyl, partially or fully fluorinated alkyl or cycloalkyl, partially or fully deuterated alkyl or cycloalkyl or a combination of both;
wherein each R A is independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, partially or fully fluorinated alkyl or cycloalkyl, partially or fully deuterated alkyl or cycloalkyl or a combination of both, and at least one R A is not hydrogen; and
wherein each R C is independently H or aryl which can be partially or fully deuterated, and which can be substituted by alkyl, aryl, partially or fully fluorinated alkyl or cycloalkyl, partially or fully deuterated alkyl or cycloalkyl or a combination of both.
9. The consumer product of claim 8 , wherein the consumer product is selected from the group consisting 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 or partially transparent display, a flexible display, a laser printer, a telephone, a cell phone, tablet, a phablet, a personal digital assistant (PDA), a wearable device, a laptop computer, a digital camera, a camcorder, a viewfinder, a micro-display that is less than 2 inches diagonal, a 3-D display, a virtual reality or augmented reality display, a vehicle, a video walls comprising multiple displays tiled together, a theater or stadium screen, and a sign.
10. A formulation comprising the compound of claim 1 .
11. The compound of claim 1 , wherein at least one R D is selected from the group consisting of alkyl, partially and fully deuterated alkyl, and partially and fully fluorinated alkyl.
12. The compound of claim 1 , wherein each R D is hydrogen.
13. The compound of claim 1 , wherein R D is selected from the group consisting of hydrogen, alkyl, partially and fully deuterated alkyl, and partially and fully fluorinated alkyl.
14. The compound of claim 1 , wherein each R C is H.
15. The compound of claim 1 , wherein exactly one R C is aryl, which can be substituted by alkyl or aryl, and can be partially or fully deuterated.
16. The compound of claim 1 , wherein R is partially or fully deuterated alkyl, partially or fully fluorinated alkyl, or a combination of both.
17. The compound of claim 1 , wherein R A is partially or fully deuterated alkyl or cycloalkyl, partially or fully fluorinated alkyl or cycloalkyl, or a combination of both.
18. The compound of claim 1 , wherein the compound has the formula Pt(L Ay )(L Bz ), wherein L Ay has the following structures:
L Ay
Structure of L Ay
Ar 1 , R 1
y
wherein Ar 1 = Ai and R 1 = Rk, wherein i is an integer from 1 to 10, and k is an integer selected from 1-19, and
y = 30(i − 1) + k
wherein Ar 1 = Ai and R 1 = Rk, wherein i is an integer from 1 to 10, and k is an integer selected from 1-19, and
y = 30(i − 1) + k + 900
wherein Ar 1 = Ai and R 1 = Rk, wherein i is an integer from 1 to 10, and k is an integer selected from 1-19, and
y = 30(i − 1) + k + 1800
wherein Ar 1 = Ai and R 1 = Rk, wherein i is an integer from 1 to 10, and k is an integer selected from 1-19, and
y = 30(i − 1) + k + 2700
wherein Ar 1 = Ai and R 1 = Rk, wherein i is an integer from 1 to 10 and k is an integer selected from 1-19, and
y = 30(i − 1) + k + 3600
wherein Ar 1 = Ai and R 1 = Rk, wherein i is an integer from 1 to 10, and k is an integer selected from 1-19, and
y = 30(i − 1) + k + 4500
wherein R 1 = Rk, wherein k is an integer selected from 1-19, and
y = k + 7200
wherein R 1 = Rk, wherein k is an integer selected from 1-19, and
y = k + 7230
wherein R 1 = Rk, wherein k is an integer selected from 1-19, and
y = k + 7260
wherein L Bz has the following structures:
L Bz
L Bz structure
Ar 2 , Ar 3 , R 2
z
wherein Ar 2 = Aj, wherein j is an integer from 11 to 30, and
z = j
wherein Ar 2 = Aj and Ar 3 = Am, wherein j is an integer from 11 to 30 and m is an integer from 1 to 30, and
z = 30(j − 1) + m + 31
wherein Ar 2 = Aj and Ar 3 = Am, wherein j is an integer from 11 to 30 and m is an integer from 1 to 30, and
z = 30(j − 1) + m + 961
wherein Ar 2 = Aj, wherein j is an integer from 11 to 30, and
z = j + 1891
wherein Ar 2 = Aj and Ar 3 = Am, wherein j is an integer from 11 to 30 and m is an integer from 1 to 30, and
z = 30(j − 1) + m + 1921
wherein Ar 2 = Aj and Ar 3 = Am, wherein j is an integer from 11 to 30 and m is an integer from 1 to 30, and
z = 30(j − 1) + m + 2821
wherein Ar 2 = Aj and Ar 3 = Am, wherein j is an integer from 11 to 30 and m is an integer from 1 to 30, and
z = 30(j − 1) + m + 3721
wherein Ar 2 = Aj and Ar 3 = Am, wherein j is an integer from 11 to 30 and m is an integer from 1 to 30, and
z = 30(j − 1) + m + 4651
wherein Ar 2 = Aj and Ar 3 = Am, wherein j is an integer from 11 to 30 and m is an integer from 1 to 30, and
z = 30(j − 1) + m + 5581
wherein Ar 2 = Aj and Ar 3 = Am, wherein j is an integer from 11 to 30 and m is an integer from 1 to 30, and
z = 30(j − 1) + m + 6481
z = 7382
wherein Ar 2 = Aj, wherein j is an integer from 1 to 30, and
z = j + 7382
wherein Ar 2 = Aj, wherein j is an integer from 1 to 30, and
z = j + 7412
wherein Ar 2 = Aj, wherein j is an integer from 1 to 30, and
z = j + 7442
wherein Ar 2 = Aj, wherein j is an integer from 1 to 30, and
z = j + 7472
wherein A1 to A30 have the following structures:
and wherein R1 to R30 have the following structures: