Journal Article ion migration long-term memory memristors organic-inorganic hybrid perovskites short-term memory Research Support, Non-U.S. Gov't buffer hole-injection layer cesium lead halides direct optical patterning electrohydrodynamic nanowire lithography electrohydrodynamically printed nanowires electroluminescence electron-phonon coupling exciton quenching field-effect transistors graphene nanoribbons high efficiency hole-injection layers inorganic halide perovskites inorganic nanomaterials large-scale fabrication layered perovskites light-emitting diodes light-emitting diodes, next-generation emitters mixed organic ammonium organic light-emitting diodes organic/inorganic hybrid perovskites organic/inorganic hybrids organometal halide perovskites