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Copyright 2004 by Marcel Dekker, Inc. All Rights Reserved.

Copyright 2004 by Marcel Dekker, Inc. All Rights Reserved.

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Figure 2 (a) Transient absorption dynamics recorded for CdSe NQDs (R = 4.1 nm)at the positions of the 1S (solid line) and 1P (dashed-dotted line) transitions whichillustrate ultrafast, subpicosecond 1P-to-1S electron relaxation. Dashed lines are fits toa single-exponential growth/decay. The dotted line is the pump-probe crosscorrelation.(b) The 1S bleaching buildup dynamics in CdSe NQDs with radii 1.7,2.3, 2.8, and 4.1 nm (thick lines), fit to a single-exponential growth (thin solid lines).The thin dotted line is the pump-probe cross-correlation.<strong>Copyright</strong> <strong>2004</strong> <strong>by</strong> <strong>Marcel</strong> <strong>Dekker</strong>, <strong>Inc</strong>. <strong>All</strong> <strong>Rights</strong> <strong>Reserved</strong>.

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