Sychugov, Ilya; Galeckas, Augustinas; Elfström, Niklas; Wilkinson, Andrew R.; Elliman, Robert G.; Linnros, Jan
The influence of the proximity of a high refractive index substrate on the luminescence of Si nanocrystals was investigated by time-integrated and time-resolved photoluminescence. The luminescence yield was found to be ∼2.5 times larger for emitters distanced from the substrate compared to those in proximity with the substrate, while luminescence decay measurements revealed only a slight increase in the luminescence lifetime (∼15%). Results are discussed in terms of local density of optical...[Show more]
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