MULTILAYER LIGHT-EMITTING ELECTROCHEMICAL CELL DEVICE STRUCTURES

摘要

Novel structures and compositions for multilayer light-emitting electrochemical cell devices are described, particularly those that are adapted to work with stable and printable electrode metals, that optimize recombination efficiency, lifetime and turn-on kinetics. In particular, embodiments of the present invention provide improved performance and extended lifetime for doped electronic devices, where ionic doping levels, ionic support materials content, and electronic transport content are advantageously structured within the device. The doping profile of mobile or semi-mobile ionic dopants is intentionally made to be non-uniform to enhance doping in the interface regions of a device where the active layer interfaces with the electrode.

主权项

1. An electronic device including an active layer in between a first electrode and a second electrode, wherein a higher concentration of neutral ionic dopant pairs is present in a region of the active layer adjacent to the first electrode as compared to the rest of the active layer.