科研之友
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摘要
Aluminum nitride nanorings with hexangular crystal structure were first synthesized by evaporating of aluminum alloy in ammonia/nitrogen atmosphere at 1100 degrees C. The products were characterized by transmission electron microscopy, scanning electron microscopy, FT-IR absorption and Raman scattering. Nanorings with the diameter of about 3 mu m are formed by bending nanowires. HRTEM and electron diffraction studies revealed that nanorings are single crystal and the c-axis of the AIN crystal directs along the radial direction of the nanoring. The electrostatic polar charge model is employed in the explanation of the AIN nanoring formation.
- 出版日期2005-10-1
- 单位中国人民解放军汽车管理学院; 南京大学
