Characterization of thickness, elemental distribution and band-gap properties in AlGaN/GaN quantum wells by aberration-corrected TEM/STEM
Characterization of thickness, elemental distribution and band-gap properties in AlGaN/GaN quantum wells by aberration-corrected TEM/STEM
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通过像差校正 TEM/STEM 表征 AlGaN/GaN 量子阱中的厚度、元素分布和带隙特性
DOI:
10.1088/1742-6596/371/1/012014
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发表时间:
2012
期刊:
影响因子:
--
通讯作者:
Amari H
中科院分区:
文献类型:
--
作者:
Amari H
This work presents an investigation of the thickness, the chemical composition and the band-gap properties of AlGaN/GaN quantum wells grown by Metal-Organic Chemical Vapour Deposition (MOCVD) on sapphire (0001) substrates. Various methods of analysis by transmission electron microscopy (TEM) were used for the characterization of these layers, such as scanning transmission electron microscopy STEM, energy-dispersive X-ray spectroscopy (EDXS) and electron energy loss spectroscopy (EELS). Annular dark-field STEM provides more accurate layer thicknesses and Al concentrations than EDXS profiling.
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DOI:
10.1088/1742-6596/326/1/012039
发表时间:
2011
期刊:
Conference Series
影响因子:
--
作者:
Amari H
通讯作者:
Amari H
影响因子:
2.8
作者:
T. Walther;H. Stegmann
通讯作者:
H. Stegmann
DOI:
10.1007/978-3-319-26651-0_3
发表时间:
2016
期刊:
--
影响因子:
--
作者:
Burke M
通讯作者:
Burke M
影响因子:
2
作者:
T. Walther
通讯作者:
T. Walther