| Abstract
| - Zinc selenide nanoribbons and nanowires were obtained using laser ablation of ZnSe pressed powders. Theirformation appeared to follow the vapor−solid and vapor−liquid−solid growth mechanisms, respectively.The product was characterized by means of scanning electron microscopy, transmission electron microscopy,micro-Raman scattering, and energy-dispersive X-ray spectroscopy. The ZnSe nanoribbons had a perfectwurtzite-2H single-crystal structure with a [120] growth direction and the {001} close-packed lattice planesof hexagonal ZnSe stacking along the nanoribbon width axis. The ZnSe nanowires grew with the {001}close-packed lattice planes of the wurtzite-2H structure stacking along the nanowire length axis. Both thelongitudinal optic (LO) and transverse optic (TO) phonon peaks of the ZnSe nanowires and nanoribbonsshowed a clear shift toward low frequency relative to bulk values, probably because of small size and largesurface effects. The ZnSe nanostructures exhibited strong self-activated luminescence centered at 596 nm.
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