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Wiley, Small, 11(2), p. 1308-1313, 2006

DOI: 10.1002/smll.200600157

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The Empirical Correlation Between Size and Two-Photon Absorption Cross Section of CdSe and CdTe Quantum Dots

Journal article published in 2006 by Meng-Ju Yang, Cheng-Chih Hsu ORCID, Chih-Wei Lai, Cheng-Chih Hsieh, Sheng Hsien Lin, Yi-Ming Cheng, Pi-Tai Chou ORCID, Shih-Chieh; Yang Meng-Ju; Hsu Cheng-Chih; Lai Chih-Wei; Hsieh Cheng-Chih; Lin Sheng Hsien; Cheng Yi-Ming; Chou Pi-Tai Pu
This paper was not found in any repository, but could be made available legally by the author.
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Abstract

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.