Polymer composite of poly(vinyl phenol)-reduced graphene oxide reduced by vitamin C in low energy consuming write-once–read-many times memory devices

We report the application of reduced graphene oxide, using vitamin C as reducing agent, to make a composite with poly(vinyl phenol) as the active layer of write-once–read-many times memory devices. These devices present a high ON/OFF current ratio of 105 when read at 1 V, retain the information for a long time maintaining the ON/OFF current ratio constant, and require low energy for performing at 5 V the memory write (less than 10−8 J cm−2 device active area) and read operations.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Memories based on reduced graphene oxide–PVA composite are demonstrated. ► The memories show write-once–read-many times characteristics. ► The devices present ON/OFF current ratio of 105 when read at 1 V. ► The write operation consumes less than 10−8 J cm−2 device active area. ► Vitamin C is used as graphene oxide reducing agent.