ORGANIC ELECTRONIC COMPONENT HAVING A CHARGE CARRIER GENERATION LAYER AND THE USE OF A ZINC COMPLEX AS A P-TYPE DOPANT IN CHARGE CARRIER GENERATION LAYERS
申请人:OSRAM OLED GmbH
公开号:US20180277778A1
公开(公告)日:2018-09-27
The invention relates to an organic electronic component (
100
) comprising at least one charge generation layer (
5
) which has an organically p-doped region (
5
a
) that contains a zinc complex as a p-dopant, said zinc complex in turn containing at least one ligand L of the following structure: formula (I) wherein R1 and R2 can be oxygen, sulphur, selenium, NH or NR4 independently from one another, wherein R4 is selected from the group containing alkyl or aryl and which can be bonded to R3; and wherein R3 is selected from the group containing alkyl, long-chain alkyl, cycloalkyl, halogen alkyl, at least partially halogenated long-chain alkyl, halogen cycloalkyl, aryl, arylene, halogen aryl, heteroaryl, heteroarylene, heterocyclic alkylene, heterocycloalkyl, halogen heteroaryl, alkenyl, halogen alkenyl, alkynyl, halogen alkynyl, ketoaryl, halogen ketoaryl, ketoheteroaryl, ketoalkyl, halogen ketoalkyl, ketoalkenyl, halogen ketoalkenyl, halogen alkyl aryl, and halogen alkyl heteroaryl, wherein, for suitable groups, one or a number of non-adjacent CH2 groups can be replaced by —O—, —S—, —NH—, —NR
∘∘∘
—, —SiR
∘
R
∘∘
—, —CO—, —COO—, —COR
∘
OR
∘∘
—, —OCO—, —OCO—O—, —SO2-, —S—CO—, —CO—S—, —O—CS—, —CS—O—, —CY1=CY2 or —C≡C— independently from one another, and in such a way that O and/or S atoms are not directly bonded to one another, and are replaced optionally with aryl- or heteroaryl preferably containing between 1 and 30 C atoms (terminal CH3 groups are understood to be CH2 groups in the sense of CH2-H). The invention further relates to the use of a zinc complex as a p-dopant in charge generation layers.
本发明涉及一种有机电子元件(100),包括至少一个具有有机p-掺杂区域(5a)的电荷生成层(5),该区域含有锌络合物作为p-掺杂剂,所述锌络合物又包含至少一个具有以下结构的配体L:式(I),其中R1和R2可以分别独立地为氧、硫、硒、NH或NR4,其中R4选自含有烷基或芳基的基团,可以与R3结合;R3选自含有烷基、长链烷基、环烷基、卤代烷基、至少部分卤代长链烷基、卤代环烷基、芳基、芳烯基、卤代芳基、杂环芳基、杂环芳烯基、杂环烷基、卤代杂环芳基、烯基、卤代烯基、炔基、卤代炔基、酮基芳基、卤代酮基芳基、酮基杂环芳基、酮基烷基、卤代酮基烷基、酮基烯基、卤代酮基烯基、卤代烷基芳基和卤代烷基杂环芳基的基团,对于适当的基团,一个或多个非相邻的CH2基团可以被—O—、—S—、—NH—、—NR∘∘∘—、—SiR∘R∘∘—、—CO—、—COO—、—COR∘OR∘∘—、—OCO—、—OCO—O—、—SO2-、—S—CO—、—CO—S—、—O—CS—、—CS—O—、—CY1=CY2或—C≡C—中的一个或多个代替,且使O和/或S原子不直接结合,可选地用含有1至30个C原子的芳基或杂环芳基替换(末端CH3基团在CH2-H的意义上被理解为CH2基团)。该发明还涉及在电荷生成层中使用锌络合物作为p-掺杂剂。