Optimizing the Aspect Ratio of Nanopatterned Mesoporous TiO2 Thin-Film Layer to Improve Energy Conversion Efficiency of Perovskite Solar Cells
Abstract
:1. Introduction
2. Results and Discussion
2.1. Overall Scheme of the Process for Fabricating Perovskite Solar Cells with a Nanopatterned Mesoporous TiO2 (mp-TiO2) Thin-Film Layer
2.2. FE-SEM, Optical, and FIB Images of Perovskite Solar Cells with a Nanopatterned Mesoporous TiO2 (mp-TiO2) Thin-Film Layer
2.3. XRD Images of Perovskite Solar Cells with a Nanopatterned Mesoporous TiO2 (mp-TiO2) Thin-Film Layer
2.4. Transmittance Data of Perovskite Solar Cells with a Nanopatterned Mesoporous TiO2 (mp-TiO2) Thin-Film Layer
2.5. Characterization of Perovskite Solar Cells with and without the Nanopatterned Mesoporous TiO2 (mp-TiO2) Thin-Film Layer
3. Materials and Methods
3.1. Preparation of Perfluoropolyether (PFPE) Mold
3.2. Preparation of Nanopatterned mp-TiO2 Thin-Film Layer
3.3. Preparation of Perovskite Precursor Solution
3.4. Fabrication of Perovskite Solar Cells
3.5. Characterization of Perovskite Solar Cells
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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mp-TiO2 Thin-Film Layer | Jsc (mA/cm2) | Voc (V) | ff | η (%) | |
---|---|---|---|---|---|
(a) | non-nanopatterned | 23.30 | 0.869 | 0.69 | 14.07 |
(b) | nanopatterned to a depth of 75 nm | 23.50 | 0.879 | 0.70 | 14.50 |
(c) | nanopatterned to a depth of 97 nm | 24.20 | 0.893 | 0.71 | 15.30 |
(d) | nanopatterned to a depth of 127 nm | 24.62 | 0.896 | 0.72 | 15.83 |
(e) | nanopatterned to a depth of 167 nm | 23.95 | 0.873 | 0.68 | 14.24 |
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Yang, H.-Y.; Chuquer, A.; Han, S.-H.; Gaudel, G.S.; Pham, X.-H.; Kim, H.-M.; Yun, W.-J.; Jun, B.-H.; Rho, W.-Y. Optimizing the Aspect Ratio of Nanopatterned Mesoporous TiO2 Thin-Film Layer to Improve Energy Conversion Efficiency of Perovskite Solar Cells. Int. J. Mol. Sci. 2021, 22, 12235. https://doi.org/10.3390/ijms222212235
Yang H-Y, Chuquer A, Han S-H, Gaudel GS, Pham X-H, Kim H-M, Yun W-J, Jun B-H, Rho W-Y. Optimizing the Aspect Ratio of Nanopatterned Mesoporous TiO2 Thin-Film Layer to Improve Energy Conversion Efficiency of Perovskite Solar Cells. International Journal of Molecular Sciences. 2021; 22(22):12235. https://doi.org/10.3390/ijms222212235
Chicago/Turabian StyleYang, Hwa-Young, Ana Chuquer, Seung-Hee Han, Gangasagar Sharma Gaudel, Xuan-Hung Pham, Hyung-Mo Kim, Won-Ju Yun, Bong-Hyun Jun, and Won-Yeop Rho. 2021. "Optimizing the Aspect Ratio of Nanopatterned Mesoporous TiO2 Thin-Film Layer to Improve Energy Conversion Efficiency of Perovskite Solar Cells" International Journal of Molecular Sciences 22, no. 22: 12235. https://doi.org/10.3390/ijms222212235