公开(公告)号：US11569480B2

公开(公告)日：2023-01-31

申请号：US17229136

申请日：2021-04-13

Applicant: Universal Display Corporation

Inventor： Michael Fusella ,  Nicholas J. Thompson

IPC: H01L51/52 ,  H01L51/50 ,  H01L33/44

Abstract: Provided are compounds, formulations comprising compounds, and devices that utilize compounds, where the devices include a substrate, a first electrode, an organic emissive layer comprising an organic emissive material disposed over the first electrode. The device includes an enhancement layer, comprising a plasmonic material exhibiting surface plasmon resonance that non-radiatively couples to the organic emissive material and transfers excited state energy from the organic emissive material to the non-radiative mode of surface plasmon polaritons. The enhancement layer is provided no more than a threshold distance away from the organic emissive layer, where the organic emissive material has a total non-radiative decay rate constant and a total radiative decay rate constant due to the presence of the enhancement layer. At least one of the organic emissive material and the organic emissive layer has a vertical dipole ratio (VDR) value of equal or greater than 0.33.

公开(公告)号：US11201313B2

公开(公告)日：2021-12-14

申请号：US16685161

申请日：2019-11-15

Applicant: Universal Display Corporation

Inventor： Michael Fusella ,  Nicholas J. Thompson

IPC: H01L51/52 ,  G02B5/00

Abstract: Devices and techniques are provided for achieving OLED devices that include one or more enhancement layers formed at least partially from a plasmonic material exhibiting surface plasmon resonance that non-radiatively couples to an organic emissive material in the organic emissive layer, where a majority of excited state energy is transferred from the organic emissive material to a non-radiative mode of surface plasmon polaritons of the enhancement layer.

公开(公告)号：US20200176714A1

公开(公告)日：2020-06-04

申请号：US16685161

申请日：2019-11-15

Applicant: Universal Display Corporation

Inventor： Michael Fusella ,  Nicholas J. Thompson

IPC: H01L51/52 ,  G02B5/00

Abstract: Devices and techniques are provided for achieving OLED devices that include one or more enhancement layers formed at least partially from a plasmonic material exhibiting surface plasmon resonance that non-radiatively couples to an organic emissive material in the organic emissive layer, where a majority of excited state energy is transferred from the organic emissive material to a non-radiative mode of surface plasmon polaritons of the enhancement layer.