Overcoming the challenges of large-area high-efficiency perovskite solar cells

Jincheol Kim, Jae Sung Yun*, Yongyoon Cho, Da Seul Lee, Benjamin Wilkinson, Arman Mahboubi Soufiani, Xiaofan Deng, Jianghui Zheng, Adrian Shi, Sean Lim, Sheng Chen, Ziv Hameiri, Meng Zhang, Cho Fai Jonathan Lau, Shujuan Huang, Martin A. Green, Anita W. Y. Ho-Baillie

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

126 Citations (Scopus)


For the first time, we report large-area (16 cm2) independently certified efficient single perovskite solar cells (PSCs) by overcoming two challenges associated with large-area perovskite solar cells. The first challenge of realizing a homogeneous and densely packed perovskite film over a large area is overcome by using an antisolvent spraying process. The second challenge of removing the series resistance limitation of transparent conductor is overcome by incorporating a metal grid designed using a semidistributed diode model. A 16 cm2 perovskite solar device at the cell level rather than at the module level is demonstrated using the modified solution process in conjunction with the use of a metal grid. The cell is independently certified to be 12.1% efficient. This work paves the way toward highly efficient and large perovskite cells without single-junction perovskite solar cells and silicon–perovskite tandems.

Original languageEnglish
Pages (from-to)1978-1984
Number of pages7
JournalACS Energy Letters
Issue number9
Publication statusPublished - 8 Sept 2017
Externally publishedYes




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