Journal Article 30604-81-0 4R7X1O2820 Chlorine Immobilized Proteins Peptides Polymers Pyrroles Research Support, Non-U.S. Gov't Silicon Z4152N8IUI fluorescent devices host engineering light-emitting diodes mixed ionic-electronic conductors organic devices organic diodes organic electrochemical diodes organic electrochemical transistor organic electrochemical transistors organic mixed ionic–electronic conductor organic rectifiers polypyrrole quantum efficiency ultraflexible device vertical device