Despite the observation by a number of groups of a strong luminescence sensitization effect of erbium ions by excitation exchange from silicon nanoclusters, there is considerable experimental evidence that the fraction of Er ions excited by Si-nc is actually very low for much of the material reported. In this work, we examine the evidence and point out that Er excited state absorption is the likely cause. © 2006 American Institute of Physics.
Er3+ excited state absorption and the low fraction of nanocluster-excitable Er3+ in SiOx
OTON NIETO, CLAUDIO JOSE;
2006-01-01
Abstract
Despite the observation by a number of groups of a strong luminescence sensitization effect of erbium ions by excitation exchange from silicon nanoclusters, there is considerable experimental evidence that the fraction of Er ions excited by Si-nc is actually very low for much of the material reported. In this work, we examine the evidence and point out that Er excited state absorption is the likely cause. © 2006 American Institute of Physics.File in questo prodotto:
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