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Using Electron Microscopy to Explore Solar Cell Interfaces: Microstructures, Efficiency, and Stability
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DOI：10.1021/acsenergylett.4c01359.png)
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Abstract
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Solar cell interfaces, including grain boundaries, twin boundaries, stacking faults, and phase boundaries, are the main nonradiative recombination and degradation sites and affect the photoelectric conversion efficiency and stability of solar cells, making it necessary to understand their fine structures and properties. Electron microscopy has provided micrometer/nanometer/atomic-scale structural information for investigating the microstructure of materials to unravel the structure-performance relationships of solar cells. Electron microscopy and related techniques have recently been used to investigate solar cell interfaces, but there has been no systematic summary of this research. In recent years, advances in technologies such as electron microscopy imaging, electron spectroscopy, in situ electron microscopy, and detectors have greatly expanded researchers' understanding of the interface properties of solar cells. This Review covers the research on the interfaces in perovskite/silicon/CdTe and Cu(In,Ga)Se-2 (CIGS) solar cells using electron microscopy and provides prospects for further progress.
Keywords:
POTENTIAL-INDUCED DEGRADATION
BEAM-INDUCED CURRENT
CU(IN,GA)SE-2 THIN-FILMS
FOCUSED ION-BEAM
GRAIN-BOUNDARIES
STACKING-FAULTS
HALIDE PEROVSKITES
NONRADIATIVE RECOMBINATION
CARRIER RECOMBINATION
CH3NH3PBI3 PEROVSKITE
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ADVANCED SCIENCE
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ADVANCED SCIENCEIF14.1
OAAIShareSaveTrap-Assisted Non-Radiative Recombination in Organic-Inorganic Perovskite Solar CellsADVANCED MATERIALS
ADVANCED MATERIALSIF26.8
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