Highly Dynamic Ligand Binding and Light Absorption Coefficient of Cesium Lead Bromide Perovskite Nanocrystals

Lead halide perovskite materials have attracted significant attention in the context of photovoltaics and other optoelectronic applications, and recently, research efforts have been directed to nanostructured lead halide perovskites. Collodial nanocrystals (NCs) of cesium lead halides (CsPbX3, X = Cl, Br, I) exhibit bright photoluminescence, with emission tunable over the entire visible spectral region. However, previous studies on CsPbX3 NCs did not address key aspects of their chemistry and photophysics such as surface chemistry and quantitative light absorption. Here, we elaborate on the synthesis of CsPbBr3 NCs and their surface chemistry. In addition, the intrinsic absorption coefficient was determined…

• BF
  Belgian Federal Science Policy Office

  Award: IAP 7.35
• ET
  Eidgenössische Technische Hochschule Zürich
• FW
  Fonds Wetenschappelijk Onderzoek

  Award: G.0760.12
• UG
  Universiteit Gent

  Award: GOA 01G01513
• VR
  Vlaamse regering
• DF
  Directorate-General for Research and Innovation
• H2
  Horizon 2020 Framework Programme

  Awards: H2020-MSCA, H2020-MSCA-ITN
• AD
  Agència de Gestió d'Ajuts Universitaris i de Recerca