Europium Addition Reduces Local Structural Disorder and Enhances Photoluminescent Yield in Perovskite CsPbBr3
Source abstract
Abstract
Abstract Correlative X‐ray microscopy, including synchrotron X‐ray diffraction and fluorescence, is leveraged to understand the local role of europium as a B‐site additive in CsPbBr3 perovskite crystals. Europium addition reduces microstrain in the perovskite, despite the fact that the degree of europium incorporation into the perovskite varies locally, with a maximum loading over twice the nominal stoichiometry. The presence of europium improves photoluminescence yield and bandwidth, while shifting the emission to bluer wavelengths. Finally, europium‐containing crystals have greatly improved X‐ray hardness. The findings show promise for europium as an additive in perovskite optoelectronic devices.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Perovskite Materials and Applications · Solid-state spectroscopy and crystallography · Luminescence Properties of Advanced Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Materials Science and Engineering Program University of California La Jolla San Diego CA 92093 USA
Chemical Engineering Program University of California La Jolla San Diego CA 92093 USA
Department of Nanoengineering University of California La Jolla San Diego CA 92093 USA
Advanced Photon Source Argonne National Laboratory Argonne IL 60439 USA
Center for Nanoscale Materials Argonne National Laboratory Lemont IL 60439 USA
Funding
National Science Foundation · U.S. Department of Energy · Office of Science · Basic Energy Sciences
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