Table 3.

Assumptions of the current study and suggested directions for future work

Assumptions in the current study	Suggestions for future work
Defect type: vacancy	Other defect types
Defect distribution: random and no accumulation	To let accumulation
Number of layers: 2	More number of layers
layer interactions: van der Waals	Other interaction types.
Boundary conditions: two sides are supported and two sides are free	Boundary conditions: all sides are supported.
Cutoff radius: a fixed value	Different values of the cutoff radius.