Supplementary material contains (1) Experimental techniques, (2) HR-TEM and SAED image of 1L-MoS2 film
grown on sapphire, (3) PL images of various regions of asgrown 1L-MoS2, (4) PL intensity map of various regions
of sample M2, (5) PL intensity map of 1L-MoS2 samples
transferred onto sapphire and quartz wafer, (6) PL spectra of both samples recorded at 80 K, (7) Raman spectra,
(8) Schematic depiction of lattice structure of 1L-MoS2
on sapphire, and (9) details of DFT calculation