Passivation by pyridine-induced PbI 2 in methylammonium lead iodide perovskites.
Andre CookTimothy W JonesJacob Tse-Wei WangHua LiRob AtkinNoel W DuffyScott W DonneGregory J WilsonPublished in: RSC advances (2020)
Defects at discontinuities of the perovskite lattice limit the performance of the perovskite solar cell (PSC). Lead iodide (PbI 2 ) and pyridine have been shown to passivate these defects. We treat methylammonium lead iodide (MAPbI 3 ) films with pyridine solutions to investigate the effects of the two passivators. By comparing confocal fluorescence microscopy (CFM) images at 405 nm excitation and then at 559 nm excitation we demonstrate the pyridine treatment passivates and forms PbI 2 crystallites which cause additional passivation.
Keyphrases
- perovskite solar cells
- solar cells
- room temperature
- optical coherence tomography
- energy transfer
- single molecule
- photodynamic therapy
- high efficiency
- high resolution
- high glucose
- deep learning
- single cell
- diabetic rats
- cell therapy
- high throughput
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- mass spectrometry
- high speed
- raman spectroscopy
- endothelial cells
- quantum dots
- carbon nanotubes