Morphology Engineering and Industrial Relevant Device Processing of Light-Emitting Electrochemical Cells

This chapter discusses the importance of the interplay between materials, morphology, processing, and device performance for the fabrication of light-emitting electrochemical cells (LEC) by industrially relevant technologies. This is centered on the utilization of the polymer solid electrolytes as a mean to tune device performance, film morphology, and rheological properties. Tunable parameters include the choice of molecular weight, material ratio, or monomer ratio in the case of copolymers. We highlight the advantages of LECs over other technologies in terms of their simplicity of fabrication by reviewing the latest research on printed devices utilizing techniques like gravure and inkjet printing, as well as spray and slot-die coating.