Extended Data Fig. 1: Raman mapping image of the E2g peak intensity on the 4-inch hBN film. | Nature Nanotechnology

Extended Data Fig. 1: Raman mapping image of the E2g peak intensity on the 4-inch hBN film.

From: Ultrawide-bandwidth boron nitride photonic memristors

Extended Data Fig. 1: Raman mapping image of the E2g peak intensity on the 4-inch hBN film.The alternative text for this image may have been generated using AI.

(a) Photograph of a 4-inch wafer of hBN film deposited on SiO₂ (290 nm)/Si. (b) Raman intensity mapping images of the E2g peak at the 9 marked positions on (a). Each mapped region measures 90 μm × 70 μm, indicating the spatial uniformity of the film. Scale bars: 20 μm.

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