A polymer scaffold for self-healing perovskite solar cells
By Yicheng Zhao, Jing Wei, Heng Li, Yin-Shiang Yan, Wenke Zhou, Dapeng Yu, Qing Zhao. Nature Communications, 2016
594 citations recorded by the source corpus.
Advancing of the lead halide perovskite solar cells towards photovoltaic market demands large-scale devices of high-power conversion efficiency, high reproducibility and stability via low-cost fabrication technology, and in particular resistance to humid environment for long-time operation. Here we achieve uniform perovskite film based on a novel polymer-scaffold architecture via a mild-temperature process. These solar cells exhibit efficiency of up to ∼16% with small variation. The unencapsulated devices retain high output for up to 300 h in highly humid environment (70% relative humidity). Moreover, they show strong humidity resistant and self-healing behaviour, recovering rapidly after removing from water vapour. Not only the film can self-heal in this case, but the corresponding devices can present power conversion efficiency recovery after the water vapour is removed. Our work demonstrates the value of cheap, long chain and hygroscopic polymer scaffold in perovskite solar cells towards commercialization. Perovskite solar cells exhibit large conversion efficiencies, but their stability still represents a bottleneck. Here, the authors integrate a hygroscopic polymer scaffold to the perovskite active layer and fabricate efficient and stable devices that recover after being exposed to a humid environment.
Subfields: Electrical and Electronic Engineering, Polymers and Plastics
View Paper: https://www.semanticscholar.org/paper/7da47950cb108eb747c02295aabb6e082584d431
How researchers see this paper
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In Electrical and Electronic Engineering
- Yang Yang
- Peter D. Lund
- Jun Zhang
- Haichao Wang
- Mingkui Wang
- David S. Ginger
- Sarthak Jariwala
- Lijian Zuo
In Polymers and Plastics
- Yang Yang
- Peter D. Lund
- Jun Zhang
- Haichao Wang
- David S. Ginger
- B. Dunn
- Muhammad Imran Asghar
- Gang Li
Citations in the corpus
- Device stability of perovskite solar cells – A review (2017, methodology): “SEM: It gives sample’s surface topography to study the morphological changes in the microstructures and their compositions.”
- Anti-Solvent Crystallization Strategies for Highly Efficient Perovskite Solar Cells (2017, methodology): “The authors adopted the previously reported concept to use an insulating polymer as a template to control nucleation and crystal growth of the perovskite [57].”