Abstract: A compound of Formula X wherein ring A is absent, or present and selected from a 5-membered or 6-membered, carbocyclic or heterocyclic ring, which is optionally substituted; ring B is absent, or present and selected from a 5-membered or 6-membered, carbocyclic or heterocyclic ring, which is optionally substituted; and at least one of ring A or ring B is present, and the hash line represents ring A fused to ring N—W1—W2 and ring B fused to ring N—W3—W4; W1, W2, W3, W4, W5, and W6 are independently selected from CR1 or N; Z is selected from CRZ or N; and Y is selected from a group consisting of C(R2)2, B(R2)2, Al(R2)2, Si(R2)2, and Ge(R2)2. An optoelectronic device selected from the group consisting of a photovoltaic device, a photodetector device, a photosensitive device, and an OLED, the optoelectronic device including an organic layer that comprises a compound of Formula X. A consumer product that includes the optoelectronic device.

Abstract: A compound of Formula X wherein ring A is absent, or present and selected from a 5-membered or 6-membered, carbocyclic or heterocyclic ring, which is optionally substituted; ring B is absent, or present and selected from a 5-membered or 6-membered, carbocyclic or heterocyclic ring, which is optionally substituted; and at least one of ring A or ring B is present, and the hash line represents ring A fused to ring N—W1—W3 and ring B fused to ring N—W4—W6; W1, W2, W3, W4, W5, and W6 are independently selected from CR1 or N; Z is selected from CRZ or N; and Y is selected from a group consisting of C(R2)2, B(R2)2, Al(R2)2, Si(R2)2, and Ge(R2)2. An optoelectronic device selected from the group consisting of a photovoltaic device, a photodetector device, a photosensitive device, and an OLED, the optoelectronic device including an organic layer that comprises a compound of Formula X. A consumer product that includes the optoelectronic device.

Abstract: A compound of Formula X wherein ring A is absent, or present and selected from a 5-membered or 6-membered, carbocyclic or heterocyclic ring, which is optionally substituted; ring B is absent, or present and selected from a 5-membered or 6-membered, carbocyclic or heterocyclic ring, which is optionally substituted; and at least one of ring A or ring B is present, and the hash line represents ring A fused to ring N—W1—W2 and ring B fused to ring N—W3—W4; W1, W2, W3, W4, W5, and W6 are independently selected from CR1 or N; Z is selected from CRZ or N; and Y is selected from a group consisting of C(R2)2, B(R2)2, Al(R2)2, Si(R2)2, and Ge(R2)2. An optoelectronic device selected from the group consisting of a photovoltaic device, a photodetector device, a photosensitive device, and an OLED, the optoelectronic device including an organic layer that comprises a compound of Formula X. A consumer product that includes the optoelectronic device.

Abstract: A compound of Formula X wherein ring A is absent, or present and selected from a 5-membered or 6-membered, carbocyclic or heterocyclic ring, which is optionally substituted; ring B is absent, or present and selected from a 5-membered or 6-membered, carbocyclic or heterocyclic ring, which is optionally substituted; and at least one of ring A or ring B is present, and the hash line represents ring A fused to ring N—W1—W3 and ring B fused to ring N—W4—W6; W1, W2, W3, W4, W5, and W6 are independently selected from CR1 or N; Z is selected from CRZ or N; and Y is selected from a group consisting of C(R2)2, B(R2)2, Al(R2)2, Si(R2)2, and Ge(R2)2. An optoelectronic device selected from the group consisting of a photovoltaic device, a photodetector device, a photosensitive device, and an OLED, the optoelectronic device including an organic layer that comprises a compound of Formula X. A consumer product that includes the optoelectronic device.

Abstract: A hybrid emissive layer and OLED incorporating the same are provided. The hybrid emissive layer includes a first material having a triplet state energy level T1H and a singlet state energy level S1H, a second material having a triplet state energy level T1F and a singlet state energy level S1F; and a third material having a triplet state energy level T1P and a single state energy level S1P, where T1F?T1H; S1F?S1H; and T1P<T1H.