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. Author manuscript; available in PMC: 2014 Sep 26.
Published in final edited form as: Angew Chem Int Ed Engl. 2009;48(5):872–897. doi: 10.1002/anie.200802585

Figure 5.

Figure 5

a): Size- and material-dependent emission spectra of several surfactant-coated semiconductor nanocrystals in a variety of sizes: A: The blue series represents different sizes of CdSe nanocrystals with diameters of 2.1, 2.4, 3.1, 3.6, and 4.6 nm (from right to left). The green series is of InP nanocrystals with diameters of 3.0, 3.5, and 4.6 nm. The red series is of InAs nanocrystals with diameters of 2.8, 3.6, 4.6, and 6.0 nm; B: A true-color image of a series of silica-coated core (CdSe)-shell (ZnS or CdS) nanocrystal probes in aqueous buffer, all illuminated simultaneously with a handheld ultraviolet lamp; b) Cross section of a dual-labeled sample. Reprinted by permission from American Association for the Advancement of Science (AAAS).[74]