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. Author manuscript; available in PMC: 2010 Oct 1.
Published in final edited form as: Nano Lett. 2009 Oct;9(10):3544–3549. doi: 10.1021/nl9017572

Figure 2.

Figure 2

Fluorescence spectra of CdSe/CdS nanocrystals in a diamond anvil cell (DAC) under hydrostatic and non-hydrostatic pressure. DAC fluorescence traces in hydrostatic 1:1 v/v pentane:isopentane medium for CdSe/CdS a) dots, b) rods, c) tetrapods; and in non-hydrostatic toluene medium for CdSe/CdS d) dots, e) rods, f) tetrapods. Subsequent spectra at different pressure points are shown in stacked offsets. Pressure ± pressure gradient (only if gradient ≥ 0.1) in GPa is labeled on the corresponding trace. Insets show TEM images of post-DAC recovered particles. All scale bars 20 nm. Fluorescence spike ~694 nm is due to fluorescence from ruby grains, used to determine pressure inside the DAC.