Low-Temperature Emission Dynamics of Methylammonium Lead Bromide Hybrid Perovskite Thin Films at the Sub-Micrometer Scale
Abstract
:1. Introduction
2. Materials and Methods
2.1. Methylamonium Lead Bromide Thin Film Preparation
2.2. Low-Temperature Confocal Microscopy
2.3. Hyperspectral Microscopy
2.4. Two-Color Fluorescence Lifetime Imaging Microscopy
2.5. Fitting the Fluorescence Lifetime Imaging Experiments
3. Results
3.1. Hyperspectral Microscopy Under Continuous, Quasi-Resonant Excitation
3.1.1. Ensemble Measurements
3.1.2. Hyperspectral Microscopy
3.1.3. Power Dependence
3.2. Fluorescence Lifetime Imaging Microscopy Under Pulsed, Non-Resonant Excitation
3.2.1. Exciton- and Trap-Related Emission Dynamics
3.2.2. Evolution of the Average Lifetime
3.2.3. Determination of the Density of Traps
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Baronnier, J.; Mahler, B.; Dujardin, C.; Houel, J. Low-Temperature Emission Dynamics of Methylammonium Lead Bromide Hybrid Perovskite Thin Films at the Sub-Micrometer Scale. Nanomaterials 2023, 13, 2376. https://doi.org/10.3390/nano13162376
Baronnier J, Mahler B, Dujardin C, Houel J. Low-Temperature Emission Dynamics of Methylammonium Lead Bromide Hybrid Perovskite Thin Films at the Sub-Micrometer Scale. Nanomaterials. 2023; 13(16):2376. https://doi.org/10.3390/nano13162376
Chicago/Turabian StyleBaronnier, Justine, Benoit Mahler, Christophe Dujardin, and Julien Houel. 2023. "Low-Temperature Emission Dynamics of Methylammonium Lead Bromide Hybrid Perovskite Thin Films at the Sub-Micrometer Scale" Nanomaterials 13, no. 16: 2376. https://doi.org/10.3390/nano13162376