Orientation-dependent cathodoluminescence has been found in crossed nanowire arrays (see figure). ZnS crossed nanowire arrays and aligned nanoribbons are grown on micrometer-wide single-crystal ZnS ribbon substrates, which leads to bandgap lasing emission in two specific directions. The reported results present a new route to synthesize II–VI semiconducting nanostructures with attractive photoelectronic properties.
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Jiang et al. (2006) studied this question.
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