In situ-formed tetrahedrally coordinated double-helical metal complexes for improved coordination-activated n-doping.

ABSTRACT: In situ coordination-activated n-doping by air-stable metals in electron-transport organic ligands has proven to be a viable method to achieve Ohmic electron injection for organic optoelectronics. However, the mutual exclusion of ligands with high nucleophilic quality and strong electron affinity limits the injection efficiency. Here, we propose meta-linkage diphenanthroline-type ligands, which not only possess high electron affinity and good electron transport ability but also favour the formation of tetrahedrally coordinated double-helical metal complexes to decrease the ionization energy of air-stable metals. An electron injection layer (EIL) compatible with various cathodes and electron transport materials is developed with silver as an n-dopant, and the injection efficiency outperform

SUBMITTER: Liu Z 

PROVIDER: S-EPMC8904628 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature