Photoinduced, reversible phase transitions in all-inorganic perovskite nanocrystals

Photoinduced, reversible phase transitions in all-inorganic perovskite nanocrystals

Lead trihalide perovskites are notable for their excellent optoelectronic properties and uncommon phase behavior. Here, Kirschner et al. show that cesium lead bromide nanocrystals experience a reversible orthorhombic-to-cubic phase transition at moderate excitation fluences and become amorphous at h...

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Main Authors: Matthew S. Kirschner, Benjamin T. Diroll, Peijun Guo, Samantha M. Harvey, Waleed Helweh, Nathan C. Flanders, Alexandra Brumberg, Nicolas E. Watkins, Ariel A. Leonard, Austin M. Evans, Michael R. Wasielewski, William R. Dichtel, Xiaoyi Zhang, Lin X. Chen, Richard D. Schaller
Format: article
Language:EN
Published: Nature Portfolio 2019
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Science
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Online Access:https://doaj.org/article/e4818bec2d4e445d84add3a5bcdbaaf4
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Summary:Lead trihalide perovskites are notable for their excellent optoelectronic properties and uncommon phase behavior. Here, Kirschner et al. show that cesium lead bromide nanocrystals experience a reversible orthorhombic-to-cubic phase transition at moderate excitation fluences and become amorphous at higher fluences.

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