Down to the wire: High-resolution photoluminescence (PL) and Raman images of CdSe nanowires were obtained using tip-enhanced near-field optical microscopy. They show that the optical properties of the CdSe nanowires vary significantly within a few nanometers leading to strong spatial fluctuations in both PL intensities and energies (see picture).
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Böhmler et al. (2011) studied this question.
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