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Can I read A Polymerization‐Assisted Grain Growth Strategy for Efficient and Stable Perovskite Solar Cells on EtoBox?
A Polymerization‐Assisted Grain Growth Strategy for Efficient and Stable Perovskite Solar Cells by Yepin Zhao; Pengchen Zhu; Minhuan Wang; Shu Huang; Zipeng Zhao; Shaun Tan; Tae‐Hee Han; Jin‐Wook Lee; Tianyi Huang; Rui Wang; Jingjing Xue; Dong Meng; Yu Huang; Jaime Marian; Jia Zhu; Yang Yang is a Engineering article available to read on EtoBox.
What is A Polymerization‐Assisted Grain Growth Strategy for Efficient and Stable Perovskite Solar Cells about?
Intrinsically, detrimental defects accumulating at the surface and grain boundaries limit both the performance and stability of perovskite solar cells. Small molecules and bulkier polymers with functional groups are utilized to passivate these ionic defects but usually suffer from volatility and precipitation issues, respectively. Here, starting from the addition of small monomers in the PbI precursor, a polymerization-assisted grain growth strategy is introduced in the sequential deposition method. With a polymerization process triggered during the PbI film annealing, the bulkier polymers formed will be adhered to the grain boundaries, retaining the previously established interactions with PbI . After perovskite formation, the polymers anchored on the boundaries can effectively passivate undercoordinated lead ions and reduce the defect density. As a result, a champion power conversion efficiency (PCE) of 23.0% is obtained, together with a prolonged lifetime where 85.7% and 91.8% of the initial PCE remain after 504 h continuous illumination and 2208 h shelf storage, respectively.
Who reads A Polymerization‐Assisted Grain Growth Strategy for Efficient and Stable Perovskite Solar Cells?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Yepin Zhao; Pengchen Zhu; Minhuan Wang; Shu Huang; Zipeng Zhao; Shaun Tan; Tae‐Hee Han; Jin‐Wook Lee; Tianyi Huang; Rui Wang; Jingjing Xue; Dong Meng; Yu Huang; Jaime Marian; Jia Zhu; Yang Yang
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); Wiley-Blackwell; Wiley; Research Square (ISSN 0935-9648)
- Published
- 2020
- Language
- EN
- Field
- Engineering (Physical Sciences)