Figure 3: Structure of epitaxial Ir nanopillars. | Nature Communications

Figure 3: Structure of epitaxial Ir nanopillars.

From: Photoelectrochemical water splitting enhanced by self-assembled metal nanopillars embedded in an oxide semiconductor photoelectrode

Figure 3

(a) Plan-view HAADF-STEM image of an Ir(5%):SrTiO3 (20 nm) film deposited at 700 °C, 10−3 Torr. The bright dots correspond to the Ir metal pillars. Scale bar, 200 nm. (b) A plan-view image of a single pillar shows that the Ir metal lattice is epitaxially matched with the SrTiO3 crystal lattice. The lattice parameters are 3.905 Å for SrTiO3 and 3.839 Å for the Ir metal. Scale bar, 2 nm. (c,d) Wide and narrow cross-section HAADF-STEM images of the same sample. Scale bars, 50 nm for c and 5 nm for d.

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