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\bibitem{Zhao_etal2018} {\textquotedblleft}\textit{Blue-edge slow photons promoting visible-light hydrogen production on gradient ternary 3DOM TiO 2 -Au-CdS photonic crystals}{\textquotedblright}. Zhao H, Hu Z, Liu J, Li Y, Wu M, Van Tendeloo G, Su B-L, Nano energy \textbf{47}, 266 (2018).   http://doi.org/10.1016/j.nanoen.2018.02.052

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