Analysis of electron beam damage of exfoliated MoS₂ sheets and quantitative HAADF-STEM imaging.
Analysis of electron beam damage of exfoliated MoS₂ sheets and quantitative HAADF-STEM imaging.
复制标题
分析去角质的Mos₂板和定量HAADF-STEM成像的电子束损伤。
DOI:
10.1016/j.ultramic.2014.05.004
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发表时间:
2014-11
期刊:
影响因子:
2.2
通讯作者:
Ponce, Arturo
中科院分区:
文献类型:
--
作者:
Garcia, Alejandra;Raya, Andres M.;Mariscal, Marcelo M.;Esparza, Rodrigo;Herrera, Miriam;Molina, Sergio I.;Scavello, Giovanni;Galindo, Pedro L.;Jose-Yacaman, Miguel;Ponce, Arturo
关键词:
In this work we examined MoS2 sheets by aberration-corrected scanning transmission electron microscopy (STEM) at three different energies: 80, 120 and 200 kV. Structural damage of the MoS2 sheets has been controlled at 80 kV according a theoretical calculation based on the inelastic scattering of the electrons involved in the interaction electron-matter. The threshold energy for the MoS2 material has been found and experimentally verified in the microscope. At energies higher than the energy threshold we show surface and edge defects produced by the electron beam irradiation. Quantitative analysis at atomic level in the images obtained at 80 kV has been performed using the experimental images and via STEM simulations using SICSTEM software to determine the exact number of MoS2 layers.
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影响因子:
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通讯作者:
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DOI:
10.1093/jmicro/dfq078
发表时间:
2011-02-01
期刊:
JOURNAL OF ELECTRON MICROSCOPY
影响因子:
--
作者:
Molina, Sergio I.;Guerrero, Maria P.;Pennycook, Stephen J.
通讯作者:
Pennycook, Stephen J.