Table 1 |
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Eagle-view and top-view SEM images of the tips at different etching time |
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Etching time |
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3 min |
4 min |
6 min |
10 min |
After sharpening |
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Tip images |
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Top view |
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Wu et al. Nanoscale Research Letters 2012 7:120 doi:10.1186/1556-276X-7-120 |
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