Impact of Humidity and Temperature on the Stability of the Optical Properties and Structure of MAPbI3, MA0.7FA0.3PbI3 and (FAPbI3)0.95(MAPbBr3)0.05 Perovskite Thin Films
Abstract
:1. Introduction
2. Experimental Details
2.1. Perovskite Film Preparation
2.2. Real Time Spectroscopic Ellipsometry Data Collection and Analysis
3. Results and Discussion
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Perovskite Films | MSE Range | Initial Effective Thickness (nm) | Effective Thickness Change (nm) | Minimum Bandgap (eV) | Maximum Bandgap (eV) | Average Bandgap (eV) |
---|---|---|---|---|---|---|
MAPbI3 on glass | 10.6–35.5 | 486.8 | 218 | 1.596 | 1.605 | 1.604 |
MAPbI3 on FTO | 13.5–14.5 | 516.9 | 23 | 1.600 | 1.613 | 1.605 |
MA0.7FA0.3PbI3 on glass | 6.2–6.5 | 474.3 | 16 | 1.590 | 1.593 | 1.590 |
MA0.7FA0.3PbI3 on FTO | 6.7–9.6 | 478.1 | 12 | 1.606 | 1.616 | 1.613 |
(FAPbI3)0.95(MAPbBr3)0.05 on glass at 7 °C with 26% RH | 8.7–8.8 | 615.8 | 1 | 1.560 | 1.565 | 1.562 |
(FAPbI3)0.95(MAPbBr3)0.05 on glass at 70 °C with 26% RH | 8.6–8.9 | 614.2 | 0 | 1.590 | 1.595 | 1.593 |
(FAPbI3)0.95(MAPbBr3)0.05 on glass at 25 °C with 85% RH | 8.9–8.8 | 614.5 | 7 | 1.559 | 1.571 | 1.563 |
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Tumusange, M.S.; Subedi, B.; Chen, C.; Junda, M.M.; Song, Z.; Yan, Y.; Podraza, N.J. Impact of Humidity and Temperature on the Stability of the Optical Properties and Structure of MAPbI3, MA0.7FA0.3PbI3 and (FAPbI3)0.95(MAPbBr3)0.05 Perovskite Thin Films. Materials 2021, 14, 4054. https://doi.org/10.3390/ma14144054
Tumusange MS, Subedi B, Chen C, Junda MM, Song Z, Yan Y, Podraza NJ. Impact of Humidity and Temperature on the Stability of the Optical Properties and Structure of MAPbI3, MA0.7FA0.3PbI3 and (FAPbI3)0.95(MAPbBr3)0.05 Perovskite Thin Films. Materials. 2021; 14(14):4054. https://doi.org/10.3390/ma14144054
Chicago/Turabian StyleTumusange, Marie Solange, Biwas Subedi, Cong Chen, Maxwell M. Junda, Zhaoning Song, Yanfa Yan, and Nikolas J. Podraza. 2021. "Impact of Humidity and Temperature on the Stability of the Optical Properties and Structure of MAPbI3, MA0.7FA0.3PbI3 and (FAPbI3)0.95(MAPbBr3)0.05 Perovskite Thin Films" Materials 14, no. 14: 4054. https://doi.org/10.3390/ma14144054