Highly efficient luminescence from a hybrid state found in strongle quantum confined PbS nanocrystals
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Fernee, Mark J; Thomsen, Elizabeth; Jensen, Peter; Rubinsztein-Dunlop, Halina
Description
We report that high quality PbS nanocrystals, synthesized in the strong quantum confinement regime, have quantum yields as high as 70% at room temperature. We use a combination of modelling and photoluminescence up-conversion to show that we obtain a nearly monodisperse size distribution. Nevertheless, the emission displays a large nonresonant Stokes shift. The magnitude of the Stokes shift is found to be directly proportional to the degree of quantum confinement, from which we establish that...[Show more]
Collections | ANU Research Publications |
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Date published: | 2006 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/51076 |
Source: | Nanotechnology |
DOI: | 10.1088/0957-4484/17/4/020 |
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01_Fernee_Highly_efficient_luminescence_2006.pdf | 484.45 kB | Adobe PDF | Request a copy |
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