公开(公告)号：US20180127604A1

公开(公告)日：2018-05-10

申请号：US15553393

申请日：2016-02-19

Applicant: Cambridge Display Technology Limited

Inventor： Simon Goddard ,  Gonçalo Pedro Gonçalves ,  Nazrul Islam

IPC: C09D11/037 ,  C09D11/50 ,  H01L51/00 ,  H01L51/50

CPC classification number: C09D11/037 ,  C09D11/50 ,  H01L51/0005 ,  H01L51/0007 ,  H01L51/0035 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5024

Abstract: A phosphorescent ink comprises a first solvent, a stabiliser and a first phosphorescent metal complex wherein the first phosphorescent metal complex comprises at least one aryl-imidazole or heteroaryl-imidazole ligand that may be unsubstituted or substituted with one or more substituents and wherein the solvent is selected from: linear, branched or cyclic ethers comprising one or more O—CH2 units; solvents comprising a CH2—C(R6)H—CH2 unit wherein R6 is an organic residue and the two CH2 groups may be linked by a divalent group: bicyclic, partially or fully saturated solvents; solvents of formula R8—CR7═CR7—CH2—R8 wherein each R7 is independently H or C1-10 alkyl and R8 in each occurrence is independently an organic residue; and solvents comprising a benzyl group. The stabiliser may be an antioxidant. The ink may be used to form an organic light-emitting device.

公开(公告)号：US20170194566A1

公开(公告)日：2017-07-06

申请号：US15313298

申请日：2015-05-21

Applicant: Cambridge Display Technology Limited

Inventor： Simon Goddard ,  Nicholas Dartnell

IPC: H01L51/00 ,  C09D11/033 ,  C09D11/037 ,  H01L51/50 ,  C09D11/52

CPC classification number: H01L51/0022 ,  C08K3/04 ,  C08K2201/001 ,  C09D11/033 ,  C09D11/037 ,  C09D11/52 ,  H01L51/0039 ,  H01L51/004 ,  H01L51/0085 ,  H01L51/5012 ,  H01L51/5032 ,  H01L51/5206 ,  H01L51/5221 ,  H01L2251/5369

Abstract: A method of making an electrode for an organic electronic device comprises the steps of depositing an ink on a light emitting layer, and drying said ink to form said electrode. The ink comprises conductive metal or carbon particles, a binder and a hydrocarbon solvent selected from 1, 1′-bicyclohexyl, cis-decalin trans-decaiin or n-undecane.

公开(公告)号：US10403821B2

公开(公告)日：2019-09-03

申请号：US15313298

申请日：2015-05-21

Applicant: Cambridge Display Technology Limited

Inventor： Simon Goddard ,  Nicholas Dartnell

IPC: C08K3/04 ,  C09D11/52 ,  H01L51/50 ,  H01L51/52 ,  C09D11/033 ,  C09D11/037 ,  H01L51/00

Abstract: A method of making an electrode for an organic electronic device comprises the steps of depositing an ink on a light emitting layer, and drying said ink to form said electrode. The ink comprises conductive metal or carbon particles, a binder and a hydrocarbon solvent selected from 1,1′-bicyclohexyl, cis-decalin trans-decaiin or n-undecane.