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Resolution: standard / high Figure 2.
PL spectra of PSi powder for different etching times. Curves: blue, 20 min; light blue, 15 min; green, 10 min; red, 5 min; and black, 2 min.
Khalifa et al. Nanoscale Research Letters 2012 7:444 doi:10.1186/1556-276X-7-444 |
