期刊
JOULE
卷 3, 期 11, 页码 2748-2760出版社
CELL PRESS
DOI: 10.1016/j.joule.2019.07.030
关键词
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资金
- National Key Research and Development Program of China [2018YFB1500104]
- National Natural Science Foundation of China [11574199, 11674219, 11834011]
- Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning
- Program for National Postdoctoral Program for Innovative Talents [2018M640388]
- National Postdoctoral Foundation of China [2018M640388]
- Natural Science Foundation of Shanghai [17ZR1414800]
Operational stability of efficient opto-electronic conversion is crucial for the success in large-scale application of perovskites devices. Owing to the intrinsically weak structure of perovskites, iodide represents the most volatile constituents, and its diffusion can induce irreversible degradation that continues to present a great challenge to realize stable perovskite devices, Here, we introduce a low-temperature processing strategy to increase the operational stability of high-efficiency perovskite solar modules by engineering low-dimensional diffusion barriers, reducing the unwanted interfacial diffusion of ions by 10(3)-10(7) times in magnitude. We finally achieved stable and efficient perovskite solar modules with an area of 36 cm(2) retaining over 95% of their initial efficiency of over 15% after 1,000 h of heating at 85 degrees C, and 91% after light soaking in AM 1.5 G solar light for 1,000 h, respectively. Our findings provide an effective strategy to realize operationally stable and efficient perovskite solar cell modules.
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