Large-scale 3D assembly of 1D ZnSe nanorods into microstrings (see figure) by simple application of a dc electric field is reported. The ordered rods exhibit polarization perpendicular to their long axis in fluorescence emission, contrary to the randomly ordered rods. The switchable assembly into long-range microstructures with unique polarization behavior holds great promise for novel applications.
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Acharya et al. (2007) studied this question.
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