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. 2020 Jul 30;10:12854. doi: 10.1038/s41598-020-69864-5

Figure 1.

Figure 1

(a) Schematic of the oblique angle sputtering setup used for the decoration of Si nanowires arrays and a representative scheme (b) of the Er atoms occupying substitutional positions into the Y2O3 matrix. SEM microscopy of Si NWs arrays before and after decoration with Er:Y2O3 at an angle of 15° acquired in cross section (c, d) and in plan view (e, f), respectively.