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Fig. 2 | Nanoscale Research Letters

Fig. 2

From: Direct Growth of Al2O3 on Black Phosphorus by Plasma-Enhanced Atomic Layer Deposition

Fig. 2

a-f Optical images of accelerated BP degradation on SiO2/Si exposed to air for different time. g-i AFM images of BP flake exposed to the air ambient for 2, 3, and 4 h. All three BP samples for AFM measurements were taken from the same batch. The average thickness of BP in g–i was 130 nm. j The average RMS roughness of BP samples versus the exposure time, the same samples as shown in g–i

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