24.0% efficiency
Low-temperature foaming of NaHCO₃ creates a porous PbI₂ layer that enables complete perovskite conversion and defect passivation, while Na⁺ doping improves energy alignment, leading to high efficiency and stability.
Du, Yitian · Wang, Ying · Wu, Jihuai · Chen, Qi · Deng, Chunyan · Ji, Ran · Sun, Liuxue · Tan, Lina · Chen, Xia · Xie, Yiming · Huang, Yunfang · Vaynzof, Yana · Gao, Peng · Sun, Weihai · Lan, Zhang
InfoMat 2023