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Figure 6 | Nanoscale Research Letters

Figure 6

From: Synthesis and Photoluminescence Properties of Porous Silicon Nanowire Arrays

Figure 6

The PL spectrums of the SiNWs with different preparation parameters. a,b Correspond to the samples with HF treatment, c,d correspond to the samples with HNO3 treatment. (1)–(5) in a and c correspond to the SiNWs etched for 60 min with the H2O2 concentrations of 0.1, 0.2, 0.3, 0.4 and 0.5 M, respectively. (1)–(5) in b and d correspond to the SiNWs etched with 0.3 M H2O2 for 30, 60, 90, 120, and 180 min, respectively

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