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. 2018 Jul 13;9(7):350. doi: 10.3390/mi9070350

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© 2018 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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(a) Schematic diagram of the perovskite-graphene hybrid PD; (b) Optical microscopy image of the CH₃NH₃PbI₃-graphene PD; (c) Photoresponsivity and EQE vs. illumination power. The inset shows the photodetectivity (D*) vs. illumination power; (d) On-off switching characteristics of the PD under dark and light illumination. By the pulsed laser illumination (left top), the temporal response of the photocurrent is shown (left bottom). Reproduced with permission for Figure 7a−d from 2014 Advanced Materials [74].