Vertically aligned and hexagonal crystal ZnSe nanoribbon arrays on Zn substrates

Abstract

The vertically aligned and hexagonal ZnSe nanoribbon array can be easily obtained by heating ZnSe: 0.38 en precursors (en = ethylenediamine), while ZnSe precursor nanoribbon arrays are grown directly on Zn foils in en using the solvothermal method. The nanoribbons are mostly about 4 nm in thickness, 100-300 nm in width, and 2 µm in length. The characteristics observed using scanning electron microscopy and X-ray diffraction indicate that the ZnSe precursor as well as ZnSe nanoribbons are vertically aligned on almost the whole zinc foil surface and form a large-scale uniform array. Particularly, ZnSe precursor nanoribbons are hybrid materials of ZnSe and en, while ZnSe nanoribbons are in the from of hexagonal structures. Possible growth mechanisms of the ZnSe precursor nanoribbon arrays are also proposed.

Vertically aligned zinc selenide nanoribbon arrays: microstructure and field emission

“…However, these peaks cannot be indexed to any known phase of Se or ZnSe provided in the standard JCPDS cards except the Zn peaks from the substrate. This XRD spectrum is similar to that reported previously [21][22][23][24][25]. According to the previous works based on IR absorption and element analysis, we deduce that this complex precursor is ZnSe and en hybrid As can be seen in figure 3(a), the ribbon-like morphology is well preserved after the thermal treatment.…”

“…ZnSe precursor nanoribbon arrays can be synthesized by a typical solvothermal method. The details of the growth technique have been described elsewhere [21].…”

“…So far, to our knowledge, few reports about ZnSe nanoribbons and the FE properties of ZnSe nanostructures are available. Here, as a continuous study of our previous work [21], we have carried out a detailed investigation on the microstructures of ZnSe precursor and ZnSe nanoribbons. The FE property of ZnSe nanoribbon arrays was also studied.…”