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Exploring the PT Structural Phase Diagram of ABX<sub>3</sub> Perovskite PV Materials

ORAL

Abstract

Perovskite photovoltaic (PV) ABX3 systems possess high energy-conversion efficiencies. Understanding their atomic-level properties will lead to their optimization and utilization in real-world applications. Synchrotron-based structural measurements over a broad range of temperatures and pressures are being conducted. Detailed studies have revealed new space group symmetries. Structural and thermodynamic properties are related using experimental measurements. The results may help address stability issues in these materials and also provide the structural details needed to develop accurate theoretical models deeded to predict optimized materials.

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Publication: "High-Resolution In-Situ Synchrotron X-Ray Studies of Inorganic Perovskite CsPbBr3 : New Symmetry Assignments and Structural Phase Transitions", Adv. Sci (Weinh). 2021 Sep;8(18):e2003046.

Presenters

  • Sandun Amarasinghe

    Department of Physics, New Jersey Institute of Technology

Authors

  • Sizhan Liu

    New Jersey Inst of Tech

  • Stella Chariton

    Center for Advanced Radiation Sources, University of Chicago, Center for Advanced Radiation Sources, The University of Chicago, IL 60637, USA, GSECARS

  • Vitali Prakapenka

    Center for Advanced Radiation Sources, University of Chicago, GSECARS

  • Zhenxian Liu

    Department of Physics, University of Illinois at Chicago, Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607-7059, USA

  • Tieyan Chang

    NSF's ChemMatCARS, University of Chicago

  • Yu-Sheng Chen

    ChemMatCARS, University of Illinois at Chicago

  • Sanjit Ghose

    National Synchrotron Light Source II, Brookhaven National Laboratory

  • Yong Yang

    Department of Chemistry and Biochemistry, San Diego State University

  • Sandun Amarasinghe

    Department of Physics, New Jersey Institute of Technology

  • Trevor A Tyson

    New Jersey Inst of Tech