Counterfoil Pinning In Conjugated Polyelectrolytes for Applications In Organic Electronics

摘要

Cationic conjugated polyelectrolytes (cationic CPEs) as components of electronic devices came in the focus of interest since the first demonstration of their potential as effective electron-injecting layers in organic light-emitting diodes (OLEDs) and organic field-effect transistors (OFETs). A further application in "bulk heterojunction"-type organic solar cells (OSCs) has also been reported. The improved charge-injection ability of these compounds may result from a combination of two or more effects, including 1) charge accumulation at interfaces and 2) formation of permanent dipoles at the organic/metal interface towards the low-work-function metal electrode, thus facilitating efficient electron injection into the organic layer.