The CVd growth is done using a liquid precursor which is dropped on the substrate and dried before it is exposed to S flow (140 degrees) in the furnace.
So we worked on this today and found the answer to it. So one factor that actually influences the shape of the CVD MoS2 is the precursor stability/homogeneity. We used a fresh precursor today (liquid) which was sonicated well and it gave us nice triangles instead of inward bent ones.
Facility used: Prof. Kralj (Inst. of Physics, Zagreb)
Thanks to Antonio Supina
Temperature is a major factor in the growth of MoS2. The effect of the temperature of the working chamber can also contribute to the outcome of the shape. Another important factor is the homogeneity of the precursor. The aerosol properties of the precursor can affect the shape of grains. This can be corrected by using a single source precursor
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