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. 2019 Jun 25;11:53. doi: 10.1007/s40820-019-0284-y

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© The Author(s) 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 1 — Representative schematic images of a completed PSC with moth-eye layer and b PSC configuration. c Fabrication of the hexagonally packed moth-eye array on a silicon wafer. d Replication of the master structure by successive coating and thermal curing of h-PDMS and s-PDMS. e Completed moth-eye PDMS film. f Spin-coating deposition of PTAA hole transport layer on ITO/glass substrate. g Spin-coating deposition of PbI₂ thin film. h Fabrication of perovskite layer by additional spin-coating of FAI/MABr/MACl solution in IPA. i Deposition of C₆₀/BCP electron transporting layer on Cu metal electrode