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. 2019 Jan 16;8:8. doi: 10.1038/s41377-018-0115-9

Fig. 1. Design of the OFN integrated with a WS2 structure.

Fig. 1

a Schematic of the WOFN as a platform for enhancement of the PL and SHG in WS2. b Crystal structure of a triangular monocrystalline WS2, with a threefold symmetry. The right panel shows the prismatic cell of WS2. c PL spectrum of a WS2 monolayer film