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期刊论文

Synthesis and characterization of ZnS tetrapods and ZnO/ZnS heterostructures

王荣明Rongming Wang Wei Liu

Thin Solid Films 522 (2012) 40–44,-0001,():

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摘要/描述

ZnS nanomaterials at different dimensions, from nanoparticles, nanobelts to nanotetrapods have been synthesized in the same solvothermal system, which is kinetically controlled by ethylenediamine. Microscopy analysis reveals that the four arms of tetrapod are grownfromZn-terminated surfaces of an octahedral core by alternately stacking zinc blende and wurtzite structures along [111]/[0001] direction, while the ZnS nanobelts are selfassembled along [0001] direction by ultra-small wurtzite nanocrystals. These nanobelts can be transformed into their single-crystal counterparts and ZnO/ZnS heterostructures by thermal treatment. Uv–visible analysis demonstrates that the heterostructure presents a strain-induced staggered Type-II band structure. These investigation results suggest an efficient approach for phase-controlled synthesis of nanostructures in group II–VI semiconductors.

版权说明:以下全部内容由王荣明上传于   2012年11月15日 14时53分15秒,版权归本人所有。

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