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• 1

  Article

  Optoelectronic Properties of Cul Photoelectrodes
  

  Author(s):

  Ádám Balog, Gergely Samu, Prashant Kamat, Casba Janáky

  Abstract:

  Detailed mechanistic understanding of the optoelectronic features is a key factor in designing efficient and stable photoelectrodes. In situ spectroelectrochemical methods were employed to scrutinize the effect of trap states on the optical and electronic properties of CuI photoelectrodes and to assess their stability against (photo)electrochemical corrosion. The excitonic band in the absorption spectrum and the Raman spectral features were directly influenced by the applied bias potential. T…

  Date Published:

  2019-01

  Record Visibility:

  Public

• 2

  Article

  Mg[(UO2)2(Ge2O6(OH)2]·(H2O)4.4, a novel compound with mixed germanium coordination: cation disordering and topological features of β-U3O8 type sheets
  

  Author(s):

  Tor Elmelund, Rebecca Scheidt, Brian Seger, Prashant Kamat

  Abstract:

  MAPbBr3 and MAPbI3 films cast onto glass slides and physically paired together undergo halide exchange to form mixed halide films. The change in halide composition in these two ∼130 nm thick films occurs concurrently with Br− diffusing toward the MAPbI3 film and I− diffusing toward the MAPbBr3 film. The diffusion of these halide species, which is tracked through changes in the absorption, offers a direct measurement of thermally activated halide diffusion in perovskite films. The increase in …

  Date Published:

  2019-06

  Record Visibility:

  Public