Hyperspectral mapping of nanoscale photophysics and degradation processes in hybrid perovskite at the single grain level

Author:

Taylor Ethan J.1,Iyer Vasudevan2,Dhami Bibek S.1,Klein Clay3,Lawrie Benjamin J.24ORCID,Appavoo Kannatassen1ORCID

Affiliation:

1. Department of Physics, University of Alabama at Birmingham, 1300 University Blvd., Birmingham AL, 35294 USA

2. Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA

3. Clarion University, 840 Wood St, Clarion, PA 16214, USA

4. Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA

Abstract

Cathodoluminescence microscopy coupled with unsupervised machine learning is employed to quantify how nanoscale heterogeneity builds up globally in large morphological grains of hybrid perovskite.

Funder

National Aeronautics and Space Administration

U.S. Department of Energy

Office of Science

Oak Ridge National Laboratory

Publisher

Royal Society of Chemistry (RSC)

Subject

General Engineering,General Materials Science,General Chemistry,Atomic and Molecular Physics, and Optics,Bioengineering

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