Bilateral alkylamine for suppressing charge recombination and improving stability in blade-coated perovskite solar cells
Wu‐Qiang Wu(Applied Physical Sciences (United States)), Zhibin Yang(Applied Physical Sciences (United States)), Peter N. Rudd(Applied Physical Sciences (United States)), Yuchuan Shao(Applied Physical Sciences (United States)), Xuezeng Dai(Applied Physical Sciences (United States)), Haotong Wei(Applied Physical Sciences (United States)), Jingjing Zhao(Applied Physical Sciences (United States)), Yanjun Fang(Applied Physical Sciences (United States)), Qi Wang(Applied Physical Sciences (United States)), Ye Liu(Applied Physical Sciences (United States)), Yehao Deng(Applied Physical Sciences (United States)), Xun Xiao(Applied Physical Sciences (United States)), Yuanxiang Feng(Applied Physical Sciences (United States)), Jinsong Huang(Applied Physical Sciences (United States))
Cited by 511Open Access
Abstract
), with a record-small open-circuit voltage deficit of 0.35 V under AM1.5G illumination. The stabilized PCE reaches 22.6% under 0.3 sun. Anchoring monolayer bilateral amino groups passivates the defects at the perovskite surface and enhances perovskite stability by exposing the linking hydrophobic alkyl chain. Grain boundaries are reinforced by BAA and are more resistant to mechanical bending and electron beam damage. BAA improves the device shelf lifetime to >1000 hours and operation stability to >500 hours under light, with 90% of the initial efficiency retained.
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