88 citations · 407 across the 13 of their papers we have counts for
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Silicon Nanocrystallites in SiO2 Matrix: The Role of Disorder and Size
Roberto Guerra, Ivan Marri, Rita Magri +4
We compare, through first-principles pseudopotential calculations, the structural, electronic and optical properties of different size silicon nanoclusters embedded in a SiO2 cryst…
Local-fields and disorder effects in free-standing and embedded Si nanocrystallites
Roberto Guerra, Elena Degoli, Margherita Marsili +2
The case study of a 32-atoms Si nanocrystallite (NC) embedded in a SiO2 matrix, both crystalline and amorphous, or free-standing with different conditions of passivation and strain…
Size, oxidation, and strain in small Si/SiO2 nanocrystals
Roberto Guerra, Elena Degoli, Stefano Ossicini
The structural, electronic and optical properties of Si nanocrystals of different size and shape, passivated with hydrogens, OH groups, or embedded in a SiO2 matrix are studied. Th…