Abstract
AbstractPhotoluminescence in visible range of spectra from nanohills formed on a surface of Ge single crystal by JAG:Nd laser radiation was found. This photoluminescence is explained by quantum confinement effect in quantum dots on a top of nanohills. Red shift of 300 cm–1 line micro‐Raman back scattering spectrum is an evidence of this suggestion. The calculation of QDs diameter using band gap shift photoluminescence spectra and peak frequency in micro‐Raman spectra as a function of diameter for spherical Ge particles gives diameters of nano‐balls on the top of nanohills is 4 nm and 6 nm. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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