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. 2021 Jun 12;33(33):2007285. doi: 10.1002/adma.202007285

Figure 7.

Figure 7

a) LSV of CuO, CuO:G‐NH2, and CuO:G‐COOH photocathodes. b) Stability of CuO, CuO:G‐NH2, and CuO:G‐COOH photocathodes. c) Linear‐sweep voltammograms of CuO:G‐COOH photocathode with different amounts of graphene. d) Stability of CuO:G‐COOH photocathode with different amounts of graphene. e–g) XPS spectra of Cu 2p core level spectra from synthesized photocathode. h,i) Surface morphology of CuO:G‐COOH thin films before and after photocurrent measurement. a–i) Reproduced under the terms of the CC‐BY Creative Commons Attribution 4.0 International license (https://creativecommons.org/licenses/by/4.0).[ 277 ] Copyright 2020, The Authors, published by Wiley‐VCH.