The positive impact of donor molecules on sensing performance can be more accurately assessed by quantifying the change in charge carrier concentration within the sheet resulting from charge transfer upon molecule adsorption. For this purpose, instead of relying solely on the molecule concentration derived from the computational model, it is more prudent to assess the adsorption site coverage under ambient conditions instead. To account for the typical operational conditions in the room temperature (RT) regime, we consider the standard atmospheric pressure of 100 kPa, an analyte concentration of 1 ppm, and a temperature of 300 K. The adsorption site coverage, denoted as Θ, is evaluated using the Langmuir adsorption model: