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  Article

  Tracking Transformative Transitions: From CsPbBr3 Nanocrystals to Bulk Perovskite Films
  

  Author(s):

  Rebecca Scheidt, Corey Atwell, Prashant Kamat

  Abstract:

  The control of grain size and surface properties is an important parameter in controlling the optoelectronic and photovoltaic properties of metal halide perovskites. When CsPbBr 3 nanocrystal (∼10 nm in diameter) films were annealed at 100−125 °C, they grow in size to produce ∼400 nm diameter crystallites while transforming into bulk perovskite films. Characteristic changes in the optical properties were noted when such transformation occurred from nanocrystals into bulk. By tracking absorban…

  Date Published:

  2019-06

  Record Visibility:

  Public