Figure 7 | Scientific Reports

Figure 7

From: Magnesium Oxide (MgO) pH-sensitive Sensing Membrane in Electrolyte-Insulator-Semiconductor Structures with CF4 Plasma Treatment

Figure 7

(a) The hysteresis of MgO sensing membranes with CF4 plasma treatment in various conditions during the pH loop of 7 → 4 → 7 → 10 → 7 over a period of 25 minutes. (b) The hysteresis of MgO sensing membranes without CF4 plasma treatment and with 60 sec CF4 plasma treatment after the pH loop of 11 cycles. (c) The drift voltage of MgO sensing membrane with CF4 plasma treatment in various conditions, then dipped in pH 7 buffer solution for 12 hours.

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