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http://dx.doi.org/10.21218/CPR.2021.9.2.023

Surface Treatment to Inhibit Water-induced Decomposition and δ-phase Formation of Perovskite Thin Films  

Son, Kyung Nan (Graduate School of Energy Science and Technology, Chungnam National University)
Naqvi, Syed Dildar Haider (Photovoltaics Research Department, Renewable Energy Institute, Korea Institute of Energy Research)
Jeong, In Young (Photovoltaics Research Department, Renewable Energy Institute, Korea Institute of Energy Research)
Ahn, SeJin (Photovoltaics Research Department, Renewable Energy Institute, Korea Institute of Energy Research)
Chang, Hyo Sik (Graduate School of Energy Science and Technology, Chungnam National University)
Publication Information
Current Photovoltaic Research / v.9, no.2, 2021 , pp. 23-30 More about this Journal
Abstract
Perovskite solar cells (PSCs) are currently attracting attention as a promising source of photovoltaic power generation for their rapid increase in efficiency within a short research period. However, the 2-step deposition method, which has been considered as a proper film fabrication route in commercialization point of view of PSC, requires a complicated control of environment to achieve high efficiency because each step of the process are affected by humidity in different manner. It is clearly a large hurdle for this technic to be transferred to industrialization. In this study, we developed a simple surface treatment by which high quality perovskite films can be fabricated through 2-step deposition method in a relatively wide humidity range without complicated humidity control at each step.
Keywords
Perovskite Solar Cell (PSC); 2-step deposition method; N-I-P structure; Humidity; Surface treatment; IPA;
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1 "Best Research-Cell Efficiency Chart | Photovoltaic Research | NREL," https://www.nrel.gov/pv/cell-efficiency.html (accessed Mar. 08, 2021).
2 S. Xiao, K. Zhang, S. Zheng, and S. Yang, "Good or evil: What is the role of water in crystallization of organometal halide perovskites?," Nanoscale Horizons, Vol. 5, No. 8, pp. 1147-1154, 2020.   DOI
3 J. Robinson et al., "Effects of ambient humidity on the optimum annealing time of mixed-halide Perovskite solar cells," J. Phys. Energy, Vol. 2, pp. 0-31, 2020.
4 C. H. Chiang, M. K. Nazeeruddin, M. Gratzel, C. G. Wu, "The synergistic effect of H2O and DMF towards stable and 20% efficiency inverted perovskite solar cells," Energy Environ. Sci., Vol. 10, No. 3, pp. 808-817, 2017.   DOI
5 P. Zhu et al., "Simultaneous Contact and Grain-Boundary Passivation in Planar Perovskite Solar Cells Using SnO2-KCl Composite Electron Transport Layer," Adv. Energy Mater., Vol. 10, No. 3, pp. 1-7, 2020.
6 C. Xin et al., "Defects Healing in Two-Step Deposited Perovskite Solar Cells via Formamidinium Iodide Compensation," ACS Appl. Energy Mater., Vol. 3, No. 4, pp. 3318-3327, 2020.   DOI
7 J. Cao et al., "Alkali-cation-enhanced benzylammonium passivation for efficient and stable perovskite solar cells fabricated through sequential deposition," J. Mater. Chem. A, Vol. 8, No. 37, pp. 19357-19366, 2020.   DOI
8 Q. Jiang et al., "Planar-Structure Perovskite Solar Cells with Efficiency beyond 21%," Adv. Mater., Vol. 29, No. 46, pp. 1-7, 2017.
9 Y. Zhao et al., "A Polymerization-Assisted Grain Growth Strategy for Efficient and Stable Perovskite Solar Cells," Adv. Mater., Vol. 32, No. 17, pp. 1-8, 2020.
10 J. Zhang et al., "Two-step sequential blade-coating of high quality perovskite layers for efficient solar cells and modules," J. Mater. Chem. A, Vol. 8, No. 17, pp. 8447-8454, 2020.   DOI
11 Y. Zhang, S. G. Kim, D. K. Lee, N. G. Park, "CH3NH3PbI3 and HC(NH2)2PbI3 Powders Synthesized from Low-Grade PbI2: Single Precursor for High-Efficiency Perovskite Solar Cells," ChemSusChem, Vol. 11, No. 11, pp. 1813-1823, 2018.   DOI
12 F. Ma, J. Li, W. Li, N. Lin, L. Wang, J. Qiao, "Stable α/δ phase junction of formamidinium lead iodide perovskites for enhanced near-infrared emission," Chem. Sci., Vol. 8, No. 1, pp. 800-805, 2016.   DOI
13 C. J. Tong, L. Li, L. M. Liu, O. V. Prezhdo, "Long Carrier Lifetimes in PbI2-Rich Perovskites Rationalized by Ab Initio Nonadiabatic Molecular Dynamics," ACS Energy Lett., Vol. 3, No. 8, pp. 1868-1874, 2018.   DOI
14 A. Ariyarit, R. Yoshikawa, I. Takenaka, F. Gillot, S. Shiratori, "Improvement of the dynamic spin-washing effect with an optimized process of a perovskite solar cell in ambient air by the Kriging method," Ind. Eng. Chem. Res., Vol. 56, No. 39, pp. 11142-11150, 2017.   DOI
15 K. Zhang et al., "A prenucleation strategy for ambient fabrication of perovskite solar cells with high device performance uniformity," Nat. Commun., Vol. 11, No. 1, pp. 1-11, 2020.   DOI
16 Z. Chen, H. Zhang, F. Yao, C. Tao, G. Fang, G. Li, "Room Temperature Formation of Semiconductor Grade α-FAPbI3 Films for Efficient Perovskite Solar Cells," Cell Reports Phys. Sci., Vol. 1, No. 9, 100205, 2020.   DOI
17 C. De Blasi, S. Galassini, C. Manfredotti, G. Micocci, L. Ruggiero, A. Tepore, "Trapping levels in PbI2," Solid State Commun., Vol. 25, No. 3, pp. 149-153, 1978.   DOI
18 F. Jiang et al., "Synergistic Effect of PbI2 Passivation and Chlorine Inclusion Yielding High Open-Circuit Voltage Exceeding 1.15 V in Both Mesoscopic and Inverted Planar CH3NH3PbI3 (Cl)-Based Perovskite Solar Cells," Adv. Funct. Mater., Vol. 26, No. 44, pp. 8119-8127, 2016.   DOI
19 B. wook Park et al., "Understanding how excess lead iodide precursor improves halide perovskite solar cell performance," Nat. Commun., Vol. 9, No. 1, pp. 1-8, 2018.   DOI
20 Q. Jiang et al., "Enhanced electron extraction using SnO2 for high-efficiency planar-structure HC(NH2)2 PbI3-based perovskite solar cells," Nat. Energy, Vol. 2, No. 1, pp. 1-7, 2017.
21 P. Cui et al., "Planar p-n homojunction perovskite solar cells with efficiency exceeding 21.3%," Nat. Energy, Vol. 4, No. 2, pp. 150-159, 2019.   DOI
22 J. Koo, T. Kim, C. Jung, J. Lee, T. Kim, "Effects of water and iso-propyl alcohol relative humidities on single wafer cleaning system performance," Int. J. Heat Mass Transf., Vol. 50, No. 21-22, pp. 4275-4285, 2007.   DOI
23 Y. Cui et al., "Correlating Hysteresis and Stability with Organic Cation Composition in the Two-Step Solution-Processed Perovskite Solar Cells," ACS Appl. Mater. Interfaces, Vol. 12, No. 9, pp. 10588-10596, 2020.   DOI
24 Y. Chen et al., "Mechanism of PbI2 in Situ Passivated Perovskite Films for Enhancing the Performance of Perovskite Solar Cells," ACS Appl. Mater. Interfaces, Vol. 11, No. 47, pp. 44101-44108, 2019.   DOI
25 D. Barrit et al., "Room-Temperature Partial Conversion of α-FAPbI3 Perovskite Phase via PbI2 Solvation Enables High-Performance Solar Cells," Adv. Funct. Mater., Vol. 30, No. 11, pp. 1-10, 2020.
26 K. Shoyama, W. Sato, Y. Guo, E. Nakamura, "Effects of water on the forward and backward conversions of lead(II) iodide to methylammonium lead perovskite," J. Mater. Chem. A, Vol. 5, No. 45, pp. 23815-23821, 2017.   DOI
27 Q. Jiang et al., "Surface passivation of perovskite film for efficient solar cells," Nat. Photonics, Vol. 13, No. 7, pp. 460-466, 2019.   DOI
28 Y. Cheng et al., "18% High-Efficiency Air-Processed Perovskite Solar Cells Made in a Humid Atmosphere of 70% RH," Sol. RRL, Vol. 1, No. 9, pp. 1-8, 2017.
29 Q. Tai et al., "Efficient and stable perovskite solar cells prepared in ambient air irrespective of the humidity," Nat. Commun., Vol. 7, pp. 1-8, 2016.
30 J. Huang, S. Tan, P. D. Lund, H. Zhou, "Impact of H2O on organic-inorganic hybrid perovskite solar cells," Energy Environ. Sci., Vol. 10, No. 11, pp. 2284-2311, 2017.   DOI
31 Y. Zhao et al., "Perovskite seeding growth of formamidinium-lead-iodide-based perovskites for efficient and stable solar cells," Nat. Commun., Vol. 9, No. 1, pp. 1-10, 2018.   DOI