Abstract:We report Raman spectra and infrared (IR) imaging collected during the intercalation−deintercalation half cycles in a multilayer graphene (MLG) device (∼100 layers) operating at 0.2−10 Hz. The device consists of a MLG/alumina membrane/copper stack, in which the alumina membrane is filled with ionic liquid [DEME][TFSI], forming an electrochemical cell. Upon the application of a positive voltage, the TFSI − anions intercalate into the interstitial spaces in the MLG. The incident laser light is modulated using an… Show more
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