GIWAXS and GISAXS studies of ion migration in mixed lead-halide perovskites for photovoltaics
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https://doi.esrf.fr/10.15151/ESRF-ES-2214247434
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资源简介：
We will use GIWAXS and GISAXS to understand the structural changes in mixed halide perovskites APbX3 (A=methylammonium, formamidinium, cesium; X=Cl, Br, I). We will track the light-induced segregation of halides in I/Br and Br/Cl mixed perovskites. We will observe the formation of pure phase domains (i.e. I-rich, Br-rich or Cl-rich) and characterize their typical size and time scale over which they appear. We will study the influence of chemical composition and crystal grain size on halide migration. This information will help to improve the stability of the perovskite-based solar cells and give an insight into ion migration in perovskite structures.
The samples will be prepared at ESRF using our own portable spin coater which was already tested at ID10.
提供机构：
University of Cambridge, Department of Physics, Cavendish Laboratory J J Thomson Avenue, CB3 0HE, Cambridge, UNITED KINGDOM; Universitaet Tuebingen, Institut fuer Angewandte Physik, Auf der Morgenstelle 10, 72076, Tuebingen, GERMANY; Universitaet Tuebingen, Institut fuer Angewandte Physik, Auf der Morgenstelle 10, 72076 Tuebingen, Germany; Karl-Franzens-Universitaet, Institut fuer Physikalische Chemie, Heinrichstr 28, 8010 , Graz, AUSTRIA
创建时间：
2028-01-01
