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有效地制备出均一单相的Mn掺杂ZnO基纳米纤维是构建微型自旋电子器件的前提和基础。采用静电纺丝法制备了5种不同浓度的Mn掺杂ZnO纳米纤维。通过调节控制纺丝过程中的工作电压,可以有效控制前驱体纤维的形貌和直径分布。在适当的热处理条件下,XRD图谱表征该5种掺杂浓度的纤维均呈现良好的六方纤锌矿结构。光致发光谱显示该纤维在400~1000nm的波长范围内出现了2个发光峰,且均随着Mn掺杂的进入而发生蓝移现象。
It is the prerequisite and foundation to construct miniature spintronic devices to fabricate Mn single-phase ZnO-based nanofibers effectively. Five different concentrations of Mn-doped ZnO nanofibers were prepared by electrospinning. By adjusting and controlling the working voltage in the spinning process, the morphology and diameter distribution of the precursor fiber can be effectively controlled. Under appropriate heat treatment conditions, XRD patterns showed that the five doping concentrations of fibers showed a good hexagonal wurtzite structure. Photoluminescence spectra showed that there were two luminescence peaks in the wavelength range from 400 nm to 1000 nm, and the blue shift occurred with the adulteration of Mn.