Rohm and Haas Electronic Materials LLC;Dow Global Technologies LLC
发明人:
De Vries Timothy S.,Kearns, Jr. Kenneth L.,McIntire Travis E.,Mukhopadhyay Sukrit,Trefonas, III Peter,Woodward William H. H.
申请号：
US201615083331
公开号：
US9972792(B2)
申请日:
2016.03.29
申请国别(地区):
美国
年份:
2018
代理人:
Cairns S. Matthew
摘要：
Aspects of the invention provide a composition having a blend of an electron transport material and an organo alkali-metal salt wherein the salt has a glass transition greater than 115° C. The organo-alkali metal salt may be selected from the group consisting of lithium 2-(2-pyridyl)phenolate (LiPP), lithium 2-(2′,2″-bipyridine-6′-yl)phenolate (LiBPP), 2-(isoquinoline-10-yl)phenolate (LiIQP), and lithium 2-(2-phenylquinazolin-4-yl)phenolate and lithium 2-(4-phenylquinazolin-2-yl)phenolate. In a preferred embodiment, the organo-alkali metal salt is lithium 2-(2′,2″-bipyridine-6′-yl)phenolate (LiBPP). Aspects of the invention also provide films and devices having a film layer prepared from the composition.
