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. 2017 Jan 4;8:14051. doi: 10.1038/ncomms14051

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Copyright © 2017, The Author(s)

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(a) Image of bulk perovskite crystals under ambient light. (b) Image of bulk perovskite crystals under UV light (365 nm). (c) Absorption (dash lines) and emission (solid lines, excited at 360 nm) spectra of the bulk and microscale perovskite crystals at room temperature. (d) The photoluminescence decays of the bulk and microscale 1D perovskite crystals (measured at 475 nm) at room temperature. (e) Comission Internationale de l'Eclairage (CIE) chromaticity coordinates of the 1D perovskites in this work (star), and the corrugated 2D perovskite (EDBE)[PbBr₄] (ref. ²¹) (circle).