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A facile method for the chemoselective reduction of graphene oxide (CrGO) has been developed via silver(I)-catalyzed decarboxylation. CrGO was characterized by X-ray photoelectron spectroscopy and X-ray diffraction. CrGO can be well-dispersed in most polar solvents, facilitating its nanosheet thin film preparation via a spin coating solution process for device fabrication. A proof of concept nonvolatile organic transistor memory device using CrGO as the charge-trapping layer showed a larger memory window of over 60 V and a higher ON/OFF current ratio of up to 104 compared to that of the precursor, graphene oxide (GO).
Du et al. (Tue,) studied this question.