Fabrication of faceted nanopores in magnesium
Shujing Wua), Fan Caoa), He Zhenga), Huaping Sheng, Chun Liu, Yu Liu, Dongshan
Zhao and Jianbo Wangb)
School of Physics and Technology, Center for Electron Microscopy and MOE Key
Laboratory of Artificial Micro- and Nano-structures, Wuhan University, Wuhan
430072, China
Supplemental Material Includes:
Figures S1-S2
Video S1
a)
Shujing Wu, Fan Cao, and He Zheng contributed equally to this work.
mail: Error! Bookmark not defined.wang@whu.edu.cn
b) Electronic
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FIG. S1. The typical HRTEM images of nanopores. The nanopores shown in Figs.
S1(a)-S1(c) are related with the nanopores presented in Figs. 2(a)-2(b), Figs. 2(c)-2(d),
and Figs. 2(e)-2(f), correspondingly. The insets show the simulated HRTEM images,
which are consistent with the experimental observation. Based upon the simulation
results, the samples thicknesses at the vicinity of nanopores shown in Figs. S1(a)-S1(c)
are estimated to be 14 nm, 10 nm, and 12 nm, respectively. All the simulations were
performed by applying the multislice Java Electron Microscopy Software named
JEMS and conducted by applying the parameters including the acceleration voltage of
200 kV, spherical aberration coefficient of 0.5 mm and the focus values of -48 nm
(Fig. S1(a)), -48 nm (Fig. S1(b)), and -54 nm (Fig. S1(c)), respectively.
FIG. S2. Typical HRTEM image of faceted nanopore along the [0001] zone axis in
Mg as extracted from the real-time Video S1, which exhibits the in-situ dynamics of
faceted nanopore morphology. The video was recorded at 2 frames/sec and played at
2× speed (enhanced online).
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