Optical imaging and transfer processes were performed using a Nikon LV100ND microscope equipped with a self-built transfer stage. Raman and PL characterizations were conducted using a confocal Raman microscope (Horiba Explorer, 532 nm excitation wavelength, 0.7 µm laser spot, 1200/2400 gratings, 0.5 mW and 1 mW, 100X objectives). AFM images were recorded on an JPK Nanowizard 4 equipped with NSG10/Au probes using Tap300-G AFM probe, and intermittent contact mode was chosen. Annealing of the samples was carried out using a tube furnace (Nabertherm GmbH, 30-3000 o C).