Abstract
Ge
thin films were prepared on 6H SiC(0001) substrates by low pressure chemical vapor deposition. X ray diffraction,
Scanning electron Microscope and Raman spectroscopy were applied to characterize the Ge/6H SiC heterostructures.
XRD spectra shows that only o ne peak is located at 2θ= 26.68°, which indicated that Ge films grow preferentially along
<111> crystalline orientation on 6H SiC(0001) Si face at 850 ℃℃. T he epitaxial growth of the Ge film follows the
Stranski Krastanow mode, Ge spherical islands form on th e two dimensional layer with a critical thickness of 7.5nm..
Keywords
SiC/Ge heterostructure, LPCVD, Oswald coalescence, Stranski Krastanow mode.
Citation
Y. L. HAN, H. B. PU, Y. ZANG, L. B. LI, Epitaxial growth of Ge film on 6H-SiC(0001) by LPCVD, Optoelectronics and Advanced Materials - Rapid Communications, 10, 9-10, September-October 2016, pp.737-739 (2016).
Submitted at: March 3, 2016
Accepted at: Sept. 29, 2016