“…Silver film (gate electrode) was deposited on a silicon substrate using physical vapor deposition. 24 A 1-mM solution of OT, DDT, and BMT in ethanol was prepared separately. To form SAMs, six silver-coated silicon substrates were immersed in the prepared solutions (2 substrates in each solution) for 1 h. After the monolayer formation, the substrate was washed with ethanol and dried using nitrogen gas.…”