Unusual size dependence of the optical emission gap in small hydrogenated silicon nanoparticles

It is well known that the electronic and optical absorption gaps of hydrogenated silicon nanoparticles are inversely proportional to the particle size. Here, the authors show that their optical emission gaps are remarkably different and dully dependent on the size for those smaller than 1.5 nm , bas...

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Veröffentlicht in:	Applied physics letters 2007-03, Vol.90 (12), p.123116-123116-3
Hauptverfasser:	Wang, X., Zhang, R. Q., Lee, S. T., Niehaus, T. A., Frauenheim, Th
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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