Xie Linghai

Organic/polymeric memory and their switching mechanisms

Organic bistable memories are an emerging area in organic electronics and information storage. In this review fundamental concept and principles of organic electrical memory devices are sum- marized, followed by featured performance on dynamic random access memory (DRAM), write-once read-many times memory (WORM) and flash memory cell from organic-inorganic nanocomposites, all organic materials, and organic metal complexes. Moreover, the mechanisms responsible for electrical conduction, switching and nonvolatile effects are demonstrated, including electric-field induced charge transfer, filamentary metal, conformation behaviors and phase changes, carrier trapping-detrapping and redox effects. Finally, a perspective for future study is proposed.