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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Measurement of the physical and electronic properties of ordered nanoporous alumina using XUV excitation spectroscopy
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Measurement of the physical and electronic properties of ordered nanoporous alumina using XUV excitation spectroscopy

机译：使用XUV激发光谱法测量有序纳米多孔氧化铝的物理和电子性质

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摘要

X-ray spectroscopy was used to probe the physical and electronic properties of highly orderednanoporous alumina. X-ray excited optical luminescence and photoluminescence (PL)measurements showed a broad blue luminescence band that is due to a complex mixture ofemission from F and F± centres. To further understand the physics of the radiative transition,temperature dependence and full width half maximum data are presented. Fromphotoluminescence excitation spectroscopy (PLE), it is suggested that the 6 eV band isassociated with F centres in keeping with the previous literature, while the 5.2 eV band couldbe associated with the presence of F+ centres. There is no evidence of excitonic absorption inthe PLE spectra of the nanoporous material and this may be due to the amorphous nature ofnanoporous material. The x-ray absorption data showed a chemical shift in the L absorptionedge of aluminium in porous alumina and also confirms the amorphous nature of nanoporousalumina.
机译：X射线光谱法用于探测高度有序的纳米多孔氧化铝的物理和电子性质。 X射线激发的光致发光和光致发光（PL）测量显示了宽的蓝色发光带，这是由于从F和F±中心发射的光混合复杂。为了进一步了解辐射跃迁的物理性质，提出了温度依赖性和全宽半最大值数据。根据光致发光激发光谱法（PLE），建议6 eV谱带与F中心相关联，与以前的文献一致，而5.2 eV谱带可能与F +中心的存在相关。在纳米多孔材料的PLE光谱中没有激子吸收的迹象，这可能是由于纳米多孔材料的非晶性所致。 X射线吸收数据显示了多孔氧化铝中铝的L吸收边缘的化学位移，也证实了纳米多孔氧化铝的无定形性质。

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