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. 2017 Sep 29;3(9):e1700841. doi: 10.1126/sciadv.1700841

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Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 5 — (A) PCE of the champion PSC fabricated from CsPbI₃·0.025EDAPbI₄ as a function of storage time in a dark dry box. (B) XRD pattern and images of the CsPbI₃·0.025EDAPbI₄ film heated at 100°C in a dry box for 1 week.