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. 2023 Jun 10;14:3443. doi: 10.1038/s41467-023-39161-6

Fig. 6. Morphology and valency of copper in polymers.

Fig. 6

a XPS data of CuI, compared to CuI treated in the reactor under operating conditions, compared to copper metal reference p1 and p2 are two different points on the surface on which the measurement was focused. b TEM image showing copper nanoparticle in pTA-Ph polymer thin film.