Short-Chain Acid Additives to Control PbI2 Crystallization in Hybrid Perovskite Films
Abstract
:1. Introduction
2. Results and Discussion
3. Materials & Methods
3.1. Perovskite Film Preparation
3.2. Adding Selected Acids
3.3. Film Deposition
3.4. Film Characterization
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Acknowledgments
Conflicts of Interest
References
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Acid Name | Structure | Film Name | Molar Mass (g/mol) | Boiling Temperature(°C) | Density (g/cm3) | pKa * | Added Acid (μL) |
---|---|---|---|---|---|---|---|
NO-ACID | O | # | # | # | # | 0 | |
Acetic | | A | 60 | 118 | 1.05 | 4.74 | 7.5 |
Formic | | B | 46 | 100.8 | 1.22 | 3.75 | 4.7 |
Trifluoroacetic | | C | 114 | 72.4 | 1.49 | −0.25 | 10.0 |
Film | PbI2 100 Area (arb. Units) | MAPI 110 Area (arb. Units) | PbI2 100/MAPI 110 (%) |
---|---|---|---|
O | 42 | 112 | 38 |
A | 29 | 135 | 21 |
B | 53 | 118 | 45 |
C | 59 | 112 | 53 |
O1 | - | 90 | 0 |
A1 | - | 157 | 0 |
B1 | 87 | 100 | 87 |
C1 | 34 | 122 | 28 |
O2 | 31 | 128 | 24 |
B2 | 90 | 101 | 89 |
C2 | 42 | 120 | 35 |
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Dionigi, C.; Calabrese, G.; Ruani, G.; Milita, S. Short-Chain Acid Additives to Control PbI2 Crystallization in Hybrid Perovskite Films. Inorganics 2022, 10, 114. https://doi.org/10.3390/inorganics10080114
Dionigi C, Calabrese G, Ruani G, Milita S. Short-Chain Acid Additives to Control PbI2 Crystallization in Hybrid Perovskite Films. Inorganics. 2022; 10(8):114. https://doi.org/10.3390/inorganics10080114
Chicago/Turabian StyleDionigi, Chiara, Gabriele Calabrese, Giampiero Ruani, and Silvia Milita. 2022. "Short-Chain Acid Additives to Control PbI2 Crystallization in Hybrid Perovskite Films" Inorganics 10, no. 8: 114. https://doi.org/10.3390/inorganics10080114