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Excitation Intensity Driven PL Shifts of SiGe Islands on Patterned and Planar Si(001) Substrates: Evidence for Ge-rich Dots in Islands

For randomly nucleated SiGe/Si(001) islands, a significantly stronger blue-shift of the PL spectra as a function of the excitation intensity is observed when compared to islands grown on patterned substrates side by side within the same run in a solid source molecular beam epitaxy chamber. We ascrib...

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Detalles Bibliográficos
Autores principales: Brehm, M, Grydlik, M, Hackl, F, Lausecker, E, Fromherz, T, Bauer, G
Formato: Texto
Lenguaje:English
Publicado: Springer 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2991224/
https://www.ncbi.nlm.nih.gov/pubmed/21170407
http://dx.doi.org/10.1007/s11671-010-9713-z