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DOE OSTI · 1683626

Understanding lead halide perovskites

Zhu, Xiaoyang
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Abstract

It has been ten years since research on lead halide perovskites (LHPs) took off spectacularly and expanded into one of the most active fields today in chemistry, physics, materials science, and engineering. There is no doubt that the rapid growth of this field has been fueled by the exceptional performance of this class of materials in solar cells, light emitting devices, and other electronic, optoelectronic, and photonic devices. Such application oriented advance has been accompanied by major development in mechanistic understanding. Growing mechanistic studies on LHPs have revealed structure–property relationships including, among others, structural instability, unique defect chemistry, dynamic disorder and anharmonicity of phonons, local symmetry breaking, efficient screening of charge carriers in large polaron formation, and the Rashba effect due to spin–orbital coupling and the presence of local electric fields. This special issue collects the cutting edge of our understanding of why LHPs work and what lessons LHPs have taught us about structure and dynamics, in general.

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRYDielectric propertiesExcitonsFirst-principle calculationsLight emitting diodesNanocrystalsPerovskitesPhonon scatteringPolaronsQuantum confinementSpin-orbit interactions

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Zhu, Xiaoyang. 2020-07-21. Understanding lead halide perovskites. https://doi.org/10.1063/5.0020414

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