Preparation and Characterization of Cubic and Hexagonal Polytypes of ZnSe:Cu2+ One-Dimensional Nanostructures
| Autor: | Shenglin Xiong, Yitai Qian, Baojuan Xi, Hongyang Zhou, Xiaoming Feng, Dechen Xu, Chengming Wang |
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| Rok vydání: | 2008 |
| Předmět: |
Materials science
Hexagonal phase Physics::Optics Thermal treatment Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Surfaces Coatings and Films Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Crystallography General Energy Transmission electron microscopy Condensed Matter::Superconductivity Phase (matter) Condensed Matter::Strongly Correlated Electrons Physical and Theoretical Chemistry Selected area diffraction Ternary operation Powder diffraction Wurtzite crystal structure |
| Zdroj: | The Journal of Physical Chemistry C. 112:5333-5338 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/jp710764m |
| Popis: | Cu-doped ZnSe single-crystal one-dimensional (1-D) nanostructures were fabricated via thermal treatment of the as-synthesized corresponding precursor, which was prepared through a ternary solution-based method. The evident phase transformation suggests that doping with Cu2+ favors the formation of the cubic phase ZnSe. The as-prepared products were characterized using diverse techniques (X-ray powder diffraction, high-resolution transmission electron microscopy, and selected area electron diffraction), which demonstrate that both the sphalerite cubic phase and the wurtzite hexagonal phase coexist in nanowires obtained from ZnSe doped with different amounts of Cu2+. |
| Databáze: | OpenAIRE |
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