Abstract
Nonradiative recombination losses at defects in metal halide perovskite films are responsible for hindering the improvement of the photovoltaic performance and stability of perovskite solar cells (PSCs). Here, we report a feasible multifunctional additive strategy that uses cesium stearate to passivate defects in perovskite films and simultaneously enhances the tolerance to light and moisture stress. Nonradiative recombination losses are effectively suppressed in target films that exhibit improved crystallinity, low trap-state density, and enhanced carrier separation and transportation. The present strategy hence boosts the power conversion efficiency of the p-i-n structured PSC to 23.41%. Our device also shows good stability in ambient air without encapsulation, maintaining 91.6% of the initial efficiency after 720 h.
摘要
金属卤化物钙钛矿薄膜缺陷处的非辐射复合损失仍然是阻碍钙钛矿太阳能电池光伏性能和稳定性进一步提高的主要原因. 本文中, 我们报道了一种可行的多功能添加剂策略, 通过使用硬脂酸铯来钝化钙钛矿薄膜中的缺陷, 同时提高对光和湿度的耐受性. 实验证明, 目标薄膜中的非辐射复合损失得到了有效抑制, 同时硬脂酸铯提高了薄膜结晶度, 降低了陷阱态密度, 增强了界面载流子的分离和传输. 因此, 本策略将p-i-n 反式结构钙钛矿太阳能电池的功率转换效率提高到23.41%. 该器件在没有封装的情况下以及潮湿空气中表现出良好的长期稳定性, 在720 h后仍能保持初始效率的91.6%.
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References
National Renewable Energy Laboratory (NREL). Best research-cell efficiency chart (2022). www.nrel.gov/pv/cell-efficiency.html
Green MA, Dunlop ED, Hohl-Ebinger J, et al. Solar cell efficiency tables (Version 58). Prog Photovolt Res Appl, 2021, 29: 657–667
Chang NL, Yi Ho-Baillie AW, Basore PA, et al. A manufacturing cost estimation method with uncertainty analysis and its application to perovskite on glass photovoltaic modules. Prog Photovolt-Res Appl, 2017, 25: 390–405
Chen H, Teale S, Chen B, et al. Quantum-size-tuned heterostructures enable efficient and stable inverted perovskite solar cells. Nat Photon, 2022, 16: 352–358
Azmi R, Ugur E, Seitkhan A, et al. Damp heat-stable perovskite solar cells with tailored-dimensionality 2D/3D heterojunctions. Science, 2022, 376: 73–77
Li X, Zhang W, Guo X, et al. Constructing heterojunctions by surface sulfidation for efficient inverted perovskite solar cells. Science, 2022, 375: 434–437
Li Z, Li B, Wu X, et al. Organometallic-functionalized interfaces for highly efficient inverted perovskite solar cells. Science, 2022, 376: 416–420
Luo D, Su R, Zhang W, et al. Minimizing non-radiative recombination losses in perovskite solar cells. Nat Rev Mater, 2020, 5: 44–60
Cheng Y, Ding L. Pushing commercialization of perovskite solar cells by improving their intrinsic stability. Energy Environ Sci, 2021, 14: 3233–3255
Wolff CM, Caprioglio P, Stolterfoht M, et al. Nonradiative recombination in perovskite solar cells: The role of interfaces. Adv Mater, 2019, 31: 1902762
Zhu L, Zhang X, Li M, et al. Trap state passivation by rational ligand molecule engineering toward efficient and stable perovskite solar cells exceeding 23% efficiency. Adv Energy Mater, 2021, 11: 2100529
Li N, Niu X, Chen Q, et al. Towards commercialization: the operational stability of perovskite solar cells. Chem Soc Rev, 2020, 49: 8235–8286
Zheng G, Zhu C, Ma J, et al. Manipulation of facet orientation in hybrid perovskite polycrystalline films by cation cascade. Nat Commun, 2018, 9: 2793
Bu T, Liu X, Zhou Y, et al. A novel quadruple-cation absorber for universal hysteresis elimination for high efficiency and stable perovskite solar cells. Energy Environ Sci, 2017, 10: 2509–2515
Saliba M, Matsui T, Domanski K, et al. Incorporation of rubidium cations into perovskite solar cells improves photovoltaic performance. Science, 2016, 354: 206–209
Zheng X, Hou Y, Bao C, et al. Managing grains and interfaces via ligand anchoring enables 22.3%-efficiency inverted perovskite solar cells. Nat Energy, 2020, 5: 131–140
Jung M, Shin TJ, Seo J, et al. Structural features and their functions in surfactant-armoured methylammonium lead iodide perovskites for highly efficient and stable solar cells. Energy Environ Sci, 2018, 11: 2188–2197
Lee JW, Dai Z, Han TH, et al. 2D perovskite stabilized phase-pure formamidinium perovskite solar cells. Nat Commun, 2018, 9: 3021
Lee JW, Tan S, Seok SI, et al. Rethinking the A cation in halide perovskites. Science, 2022, 375: eabj1186
Shao Y, Xiao Z, Bi C, et al. Origin and elimination of photocurrent hysteresis by fullerene passivation in CH3NH3PbI3 planar heterojunction solar cells. Nat Commun, 2014, 5: 5784
Xu J, Buin A, Ip AH, et al. Perovskite-fullerene hybrid materials suppress hysteresis in planar diodes. Nat Commun, 2015, 6: 7081
Wang K, Liu C, Du P, et al. Bulk heterojunction perovskite hybrid solar cells with large fill factor. Energy Environ Sci, 2015, 8: 1245–1255
Wang R, Xue J, Meng L, et al. Caffeine improves the performance and thermal stability of perovskite solar cells. Joule, 2019, 3: 1464–1477
Lee JW, Bae SH, Hsieh YT, et al. A bifunctional Lewis base additive for microscopic homogeneity in perovskite solar cells. Chem, 2017, 3: 290–302
Liu X, Wu J, Yang Y, et al. Pyridine solvent engineering for high quality anion-cation-mixed hybrid and high performance of perovskite solar cells. J Power Sources, 2018, 399: 144–150
Lee DG, Kim DH, Lee JM, et al. High efficiency perovskite solar cells exceeding 22% via a photo-assisted two-step sequential deposition. Adv Funct Mater, 2021, 31: 2006718
Boyd CC, Cheacharoen R, Leijtens T, et al. Understanding degradation mechanisms and improving stability of perovskite photovoltaics. Chem Rev, 2019, 119: 3418–3451
Eames C, Frost JM, Barnes PRF, et al. Ionic transport in hybrid lead iodide perovskite solar cells. Nat Commun, 2015, 6: 7497
Wang J, Jin G, Zhen Q, et al. Bulk passivation and interfacial passivation for perovskite solar cells: Which one is more effective? Adv Mater Interfaces, 2021, 8: 2002078
Qin C, Matsushima T, Fujihara T, et al. Multifunctional benzoquinone additive for efficient and stable planar perovskite solar cells. Adv Mater, 2017, 29: 1603808
Cai Y, Cui J, Chen M, et al. Multifunctional enhancement for highly stable and efficient perovskite solar cells. Adv Funct Mater, 2021, 31: 2005776
Shi X, Wu Y, Chen J, et al. Thermally stable perovskite solar cells with efficiency over 21% via a bifunctional additive. J Mater Chem A, 2020, 8: 7205–7213
Yang Y, Peng H, Liu C, et al. Bi-functional additive engineering for high-performance perovskite solar cells with reduced trap density. J Mater Chem A, 2019, 7: 6450–6458
Li Z, Li X, Wang M, et al. Enhanced photovoltaic performance via a bifunctional additive in tin-based perovskite solar cells. ACS Appl Energy Mater, 2022, 5: 108–115
Mateen M, Arain Z, Liu X, et al. Boosting optoelectronic performance of MAPbI3 perovskite solar cells via ethylammonium chloride additive engineering. Sci China Mater, 2020, 63: 2477–2486
Wu G, Cai M, Cao Y, et al. Enlarging grain sizes for efficient perovskite solar cells by methylamine chloride assisted recrystallization. J Energy Chem, 2022, 65: 55–61
Song J, Li J, Li X, et al. Quantum dot light-emitting diodes based on inorganic perovskite cesium lead halides (CsPbX3). Adv Mater, 2015, 27: 7162–7167
Li J, Xu L, Wang T, et al. 50-Fold EQE improvement up to 6.27% of solution-processed all-inorganic perovskite CsPbBr3 QLEDs via surface ligand density control. Adv Mater, 2017, 29: 1603885
Li Y, Ma F, Zhao D, et al. Convenient synthesis of high-quality, all-inorganic lead halide perovskite nanocrystals for high purity monochrome QLED. Mater Tech, 2021, 36: 637–646
Chen Y, Yang Z, Wang S, et al. Design of an inorganic mesoporous hole-transporting layer for highly efficient and stable inverted perovskite solar cells. Adv Mater, 2018, 30: 1805660
Kim H, Lee YH, Lyu T, et al. Boosting the performance and stability of quasi-two-dimensional tin-based perovskite solar cells using the formamidinium thiocyanate additive. J Mater Chem A, 2018, 6: 18173–18182
Singh CR, Gupta G, Lohwasser R, et al. Correlation of charge transport with structural order in highly ordered melt-crystallized poly(3-hexylthiophene) thin films. J Polym Sci Part B-Polym Phys, 2013, 51: 943–951
Jeong M, Choi IW, Go EM, et al. Stable perovskite solar cells with efficiency exceeding 24.8% and 0.3-V voltage loss. Science, 2020, 369: 1615–1620
Liu K, Liang Q, Qin M, et al. Zwitterionic-surfactant-assisted room-temperature coating of efficient perovskite solar cells. Joule, 2020, 4: 2404–2425
Yang X, Fu Y, Su R, et al. Superior carrier lifetimes exceeding 6 µs in polycrystalline halide perovskites. Adv Mater, 2020, 32: 2002585
Quarti C, De Angelis F, Beljonne D. Influence of surface termination on the energy level alignment at the CH3NH3PbI3 perovskite/C60 interface. Chem Mater, 2017, 29: 958–968
Li B, Chang B, Pan L, et al. Tin-based defects and passivation strategies in tin-related perovskite solar cells. ACS Energy Lett, 2020, 5: 3752–3772
Kim M, Jeong J, Lu H, et al. Conformal quantum dot-SnO2 layers as electron transporters for efficient perovskite solar cells. Science, 2022, 375: 302–306
Acknowledgements
This work was supported by the National Key Research and Development Program of China (2018YFB1500104), the National Natural Science Foundation of China (11574199 and 11911530142), Shanghai Pilot Program for Basic Research-Shanghai Jiao Tong University, and the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning. We gratefully acknowledge the assistance in measurements from the Instrumental Analysis Center of Shanghai Jiao Tong University (China). We especially thank Li H for the assistance with the AFM and KPFM measurements, Bao Z and Li X for the assistance with the SEM measurements, and Wang R for the assistance with the PL and TRPL measurements. We thank Han L for the helpful discussions.
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Yang X supervised the project. Yang X and Wang T conceived the ideas for the project and designed the experiments. Wang T, Ye T, Qiao L, and Kong W characterized the films and devices. Wang T, Ye T, Qiao L, Kong W, Zeng F, Zhang Y, Sun R, and Zhang L optimized the photovoltaic performance of devices together. Chen H and Zheng R participated in the discussion and revision. Yang X and Wang T co-wrote the manuscript.
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Tao Wang is currently a PhD candidate at the School of Materials Science and Engineering, Shanghai Jiao Tong University. He received his MS degree from the School of Chemistry and Chemical Engineering, Nanjing University in 2018. His current research is focused on fabricating highly efficient and stable perovskite solar cells through addictive engineering, interface engineering, and doping strategies for organic hole-transporting materials.
Xudong Yang received his PhD degree from the Chinese Academy of Sciences. He did postdoctoral research at the University of Cambridge, UK, and the International Center for Young Scientists of the National Institute for Materials Science, Japan. He joined Shanghai Jiao Tong University as a distinguished researcher in 2014. His current research is focused on understanding the mechanisms of photoelectron conversion, charge transport, and the fabrication of next-generation optoelectronic devices for applications in energy conversion.
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Wang, T., Ye, T., Qiao, L. et al. Anionic surfactant anchoring enables 23.4% efficient and stable perovskite solar cells. Sci. China Mater. 65, 3361–3367 (2022). https://doi.org/10.1007/s40843-022-2255-2
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DOI: https://doi.org/10.1007/s40843-022-2255-2