Abstract

We investigated the morphology and luminescent properties of ZnO tetrapod powders with copper and gold admixtures, obtained by carbothermal pyrolysis. A broad band in the region of 450–650 nm dominates in the X-ray luminescence spectrum of the samples. There is also a weak edge luminescence band with a maximum at 391 nm. Kinetic measurements showed the presence of both fast (~1 ns) and slow (~850 ns) luminescence components, and the fast component, as a rule, did not exceed 1% of the integrated intensity. The used doping method does not result in the incorporation of copper and gold admixtures into the ZnO lattice. The presence of copper at a concentration of up to 9% does not affect the morphology or luminescence properties of ZnO tetrapods, while gold has such an effect even at a concentration close to 1%.

中文翻译：

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在初始电荷中存在铜和金混合物的情况下生长的ZnO四脚架的X射线发光

摘要

我们研究了通过碳热热解获得的具有铜和金混合物的ZnO四脚架粉末的形貌和发光特性。在样品的X射线发光光谱中，450-650 nm范围内的宽带占主导。还有一个弱边缘发光带，最大波长为391 nm。动力学测量表明同时存在快速（〜1 ns）和慢速（〜850 ns）发光成分，通常，快速成分不超过积分强度的1％。使用的掺杂方法不会导致将铜和金的混合物掺入ZnO晶格中。浓度高达9％的铜的存在不会影响ZnO四脚架的形貌或发光性能，而金甚至在浓度接近1％时也具有这种作用。