In:
Small, Wiley, Vol. 2, No. 11 ( 2006-11), p. 1308-1313
Kurzfassung:
The tuning of CdSe quantum dot (QDs) sizes, and consequently their corresponding two‐photon absorption (TPA) cross section, has been systematically investigated. As the size (diameter) of the quantum dots increases, the TPA cross section is found to be empirically related via a power‐law proportionality of 3.5±0.5 and 5.6±0.7 to the diameters of CdSe and CdTe QDs, respectively. The results are tentatively rationalized via a theoretical model of two‐photon excitation properties in a system incorporating excitons and defects.
Materialart:
Online-Ressource
ISSN:
1613-6810
,
1613-6829
DOI:
10.1002/smll.200600157
Sprache:
Englisch
Verlag:
Wiley
Publikationsdatum:
2006
ZDB Id:
2168935-0
