公开(公告)号：US20180175329A1

公开(公告)日：2018-06-21

申请号：US15845575

申请日：2017-12-18

Applicant: Arizona Board of Regents on behalf of Arizona State University

Inventor： Jian Li ,  Kody George Klimes

IPC: H01L51/52 ,  C09K11/06 ,  C07F15/00 ,  H01L51/00

CPC classification number: H01L51/5278 ,  C07F15/006 ,  C09K11/06 ,  C09K2211/1014 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L51/0008 ,  H01L51/0084 ,  H01L51/5016 ,  H01L51/504 ,  H01L51/56 ,  H01L2251/558 ,  Y02E10/549

Abstract: An organic light emitting diode (OLED) device includes an emissive layer having a first sublayer with a first emitter as a dopant, a second sublayer with a second emitter as a dopant, and a third sublayer with a third emitter as a dopant. The second sublayer is between the first sublayer and the third sublayer. A concentration of the first emitter in the first sublayer exceeds a concentration of the third emitter in the third sublayer, and the concentration of the third emitter in the third sublayer exceeds a concentration of the second emitter in the second sublayer.

公开(公告)号：US11183670B2

公开(公告)日：2021-11-23

申请号：US15845575

申请日：2017-12-18

Applicant: Arizona Board of Regents on behalf of Arizona State University

Inventor： Jian Li ,  Kody George Klimes

IPC: H01L51/52 ,  H01L51/50 ,  C09K11/06 ,  C07F15/00 ,  H01L51/00 ,  H01L51/56

Abstract: An organic light emitting diode (OLED) device includes an emissive layer having a first sublayer with a first emitter as a dopant, a second sublayer with a second emitter as a dopant, and a third sublayer with a third emitter as a dopant. The second sublayer is between the first sublayer and the third sublayer. A concentration of the first emitter in the first sublayer exceeds a concentration of the third emitter in the third sublayer, and the concentration of the third emitter in the third sublayer exceeds a concentration of the second emitter in the second sublayer.