Modified Stranski–Krastanov growth in Ge/Si heterostructures via nanostenciled pulsed laser deposition
MacLeod, J.M., Cojocaru, C.V., Ratto, F., Harnagea, C., Bernardi, A., Alonso, M.I., & Rosei, F. (2012) Modified Stranski–Krastanov growth in Ge/Si heterostructures via nanostenciled pulsed laser deposition. Nanotechnology, 23(6), 065603.
The combination of nanostenciling with pulsed laser deposition (PLD) provides a flexible, fast approach for patterning the growth of Ge on Si. Within each stencilled site, the morphological evolution of the Ge structures with deposition follows a modified Stranski–Krastanov (SK) growth mode. By systematically varying the PLD parameters (laser repetition rate and number of pulses) on two different substrate orientations (111 and 100), we have observed corresponding changes in growth morphology, strain and elemental composition using scanning electron microscopy, atomic force microscopy and μ-Raman spectroscopy. The growth behaviour is well predicted within a classical SK scheme, although the Si(100) growth exhibits significant relaxation and ripening with increasing coverage. Other novel aspects of the growth include the increased thickness of the wetting layer and the kinetic control of Si/Ge intermixing via the PLD repetition rate.
Impact and interest:
Citation counts are sourced monthly from and citation databases.
These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.
Citations counts from theindexing service can be viewed at the linked Google Scholar™ search.
|Item Type:||Journal Article|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2012 IOP Publishing Ltd|
|Deposited On:||06 Apr 2016 22:51|
|Last Modified:||18 Apr 2016 02:41|
Repository Staff Only: item control page