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Process of the CNT-modified-Au device fabrication. (A) Gold sputtering on the glass substrate. (B) Placement of parafilm layer on the sample to provide a fixed area (C) Drop casting of CNT suspension into the exposed area (D) Solvent evaporation at room temperature for 30 min (E) Patterning the electrode by laser (F) Insulation of the electrode surface by PI polymer (G) top and side view of the device.
