For further confirmation of phase formation and the deposition

According to the group theory, SnO2 in its rutile phase generates eighteen branches for the vibration modes in the first Brillouin zone and the mechanical representation of the normal vibration modes at the center of the Brillouin zone can be defined as [9]:equation(2)Γ=Γ1+1A1g+Γ2+1A2g+Γ3+1B1g+Γ4+1B2g+Γ5−1Eg+2Γ1−1A2u+2Γ4−B1u+4Γ5+Euwhere, two, the single A2u and the triply degenerated Eu mode are IR active modes.