Measurement of the physical and electronic properties of ordered nanoporous alumina using XUV excitation spectroscopy
Measurement of the physical and electronic properties of ordered nanoporous alumina using XUV excitation spectroscopy
复制标题
使用 XUV 激发光谱测量有序纳米多孔氧化铝的物理和电子性质
DOI:
10.1088/0022-3727/42/19/195404
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发表时间:
2009
期刊:
影响因子:
--
通讯作者:
Nasir M
中科院分区:
文献类型:
--
作者:
Nasir M
X-ray spectroscopy was used to probe the physical and electronic properties of highly ordered nanoporous alumina. X-ray excited optical luminescence and photoluminescence (PL) measurements showed a broad blue luminescence band that is due to a complex mixture of emission from F and F+ centres. To further understand the physics of the radiative transition, temperature dependence and full width half maximum data are presented. From photoluminescence excitation spectroscopy (PLE), it is suggested that the 6 eV band is associated with F centres in keeping with the previous literature, while the 5.2 eV band could be associated with the presence of F+ centres. There is no evidence of excitonic absorption in the PLE spectra of the nanoporous material and this may be due to the amorphous nature of nanoporous material. The x-ray absorption data showed a chemical shift in the L absorption edge of aluminium in porous alumina and also confirms the amorphous nature of nanoporous alumina.
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1980
期刊:
影响因子:
--
作者:
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通讯作者:
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影响因子:
56.9
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通讯作者:
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1975
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DOI:
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发表时间:
1994-06-01
影响因子:
1.3
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通讯作者:
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