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. 2015 Mar;5(1):7–26. doi: 10.1557/mrc.2015.6

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© Materials Research Society 2015

This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/3.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 1. — Comparison of the mesoporous (left) and planar (right) architectures used in perovskite solar cells. Most devices with high efficiency use glass/FTO/TiO₂/CH₃NH₃PbI₃/Spiro-OMeTAD/Au. Except for the glass substrate, layer thicknesses are drawn approximately to scale.