Hydrothermal synthesis of oriented ZnO nanobelts and their temperature dependent photoluminescence
Hydrothermal synthesis of oriented ZnO nanobelts and their temperature dependent photoluminescence
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DOI：
10.1016/j.cplett.2004.06.012
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发表时间：
2004-07-21
影响因子：
2.8
通讯作者：
Choy, CL
中科院分区：
文献类型：
--
作者：
Zhang, XY;Dai, JY;Choy, CL
采用水热法合成了取向单晶氧化锌纳米带。X射线衍射仪和透射电子显微镜的结构表征表明，所制备的氧化锌纳米带具有c轴生长取向的纤锌矿结构，并在(112 0)和(0 110)原子面上呈多面体结构。讨论了纳米带的生长机制。对退火后的氧化锌纳米带进行了随温度变化的光致发光测量，发现激子发射和深能级发射都随着温度的降低而增加。(C)2004爱思唯尔B.V.保留所有权利。
Oriented single crystalline ZnO nanobelts have been synthesized through a hydrothermal method. Structural characterizations using X-ray diffraction and transmission electron microscopy revealed that the ZnO nanobelts possess wurtzite structure with a c-axis growth orientation and are faceted in (112 0) and (0 110) atomic planes. The growth mechanism of the nanobelts was discussed. Temperature-dependent photoluminescence measurement of the annealed ZnO nanobelts has been carried out and it showed that both the excitonic emission and the deep level emissions increased with decreasing temperature. (C) 2004 Elsevier B.V. All rights reserved.