Vertically aligned and hexagonal crystal ZnSe nanoribbon arrays on Zn substrates |
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Authors: | Pang Qi Zhao Li-juan Ge Wei-kun Wang Jian-nong Fang Yue-ping Wen Xiao-gang and Yang Shi-he |
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Institution: | (1) Physics Department, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China;(2) Chemistry Department, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China |
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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. |
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Keywords: | nanoribbon vertically aligned hexagonal growth mechanism |
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