Local halide heterogeneity drives surface wrinkling in mixed-halide wide-bandgap perovskites by Kunal Datta, Simone C. W. van Laar, Margherita Taddei, Juanita Hidalgo, Tim Kodalle, Guus J. W. Aalbers, Barry Lai, Ruipeng Li, Nobumichi Tamura, Jordi T. W. Frencken, Simon V. Quiroz Monnens, Robert J. E. Westbrook, Daniel J. Graham, Carolin M. Sutter-Fella, Juan-Pablo Correa-Baena, David S. Ginger, Martijn M. Wienk, René A. J. Janssen

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