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:US10581001B2
公开(公告)日:2020-03-03
The invention relates to an organic electronic component (100) comprising at least one charge generation layer (5) which has an organically p-doped region (5a) 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),该元件包含至少一个电荷发生层(5),该电荷发生层具有一个有机 p 掺杂区(5a),该有机 p 掺杂区包含作为 p 掺杂剂的
锌络合物,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 可以是相互独立的氧、
硫、
硒、NH 或 NR4,其中 R4 选自含烷基或芳基的基团,并可与 R3 键合;其中 R3 选自包含烷基、长链烷基、环烷基、卤代烷基、至少部分卤代的长链烷基、卤代环烷基、芳基、芳烯基、卤代芳基、杂芳基、杂芳烯基、杂环烷基、杂环烷基、卤代杂芳基、卤代杂芳烯基、卤代杂芳烯基、卤代杂环烷基卤代杂芳基、烯基、卤代烯基、炔基、卤代炔基、酮芳基、卤代酮芳基、酮异芳基、酮烷基、卤代酮烷基、酮烯基、卤代酮烯基、卤代烷基芳基和卤代烷基杂芳基,其中,对于合适的基团来说一个或多个不相邻的
CH2 基团可被-O-、-S-、-NH-、-NR∘∘∘-、-SiR∘R∘∘-、-CO-、-COO-、-COR∘OR∘∘-、-OCO-、-OCO-、-OCO-O-、-S-CO-、-SCO-S-、-O-CS-、-CS-O-取代、-CY1=CY2或-C≡C-彼此独立,且 O 原子和/或 S 原子不直接相互键合,并可选地被优选含有 1 至 30 个 C 原子的芳基或杂芳基取代(末端
CH3 基团应理解为 -H 意义上的 基团)。本发明还涉及在电荷发生层中使用
锌络合物作为 p 掺杂剂。