Dielectric spectroscopy on 2D and 3D metal halide perovskites using an interdigitated electrode geometry

ORAL

Abstract

Metal halide perovskites are a class of 2D and 3D materials that are currently being used in solar energy and other applications. Fundamental characteristics such as exciton binding energy and complex permittivity are important to know in order to design better materials, but have proven challenging to accurately measure. We present experimental measurements of the capacitance of perovskite layers on interdigitated electrodes, along with a model to deduce the frequency dependence of dielectric constant, and we analyze different models which have been used by others for similar situations.

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Authors

  • Emma McClure

    Brigham Young University

  • Rupjyoti Gogoi

    Arizona State University, Colorado State University, University of Utah, Utah State University, George Mason University, Brigham Young University, University of Colorado, Boulder, Georgia Institute of Technology, University of Colorado, Boulder; North China Electric Power University, Argonne National Laboratory, Carnegie Mellon University, Purdue University, Yunnan University, University of Arizona, Ball Aerospace, Ponderosa Associates Limited, Polsinelli PC, Saleh Research Centre, New Mexico State University, Oak Ridge National Laboratory, Center for Memory and Recording research, Advanced Photon Source, Chemnitz university of technology, Tezpur University

  • Rupjyoti Gogoi

    Arizona State University, Colorado State University, University of Utah, Utah State University, George Mason University, Brigham Young University, University of Colorado, Boulder, Georgia Institute of Technology, University of Colorado, Boulder; North China Electric Power University, Argonne National Laboratory, Carnegie Mellon University, Purdue University, Yunnan University, University of Arizona, Ball Aerospace, Ponderosa Associates Limited, Polsinelli PC, Saleh Research Centre, New Mexico State University, Oak Ridge National Laboratory, Center for Memory and Recording research, Advanced Photon Source, Chemnitz university of technology, Tezpur University