3D Network-Assisted Crystallization for Fully Printed Perovskite Solar Cells with Superior Irradiation Stability

Feng Li; Chenxiang Gong; Baojin FanZhi XingXiangchuan MengShaohua ZhangXiaotian HuYiwang Chen

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3D Network-Assisted Crystallization for Fully Printed Perovskite Solar Cells with Superior Irradiation Stability

机译：3D Network-Assisted Crystallization for Fully Printed Perovskite Solar Cells with Superior Irradiation Stability

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Meniscus-coating as a high-throughput preparation process has significant advantages in the manufacture of large-area perovskite solar cells (PSCs). However, the gradient crystallization during printing significantly affects the vertical uniformity of perovskite films, which greatly affects the carrier transport of perovskite films and the stability of PSCs. Here, a perovskite ink compatible with printing technology is reported to realize uniform printing of perovskite film on a 3D scale. The siloxane 3D network hinders the solute migration caused by capillary force and acts as a skeleton to promote the uniform crystallization of perovskite films. Consequently, the corresponding fully printed PSCs have reduced efficiency loss (from 37.4% to 17.0%). In addition, based on the improvement of crystal quality and reduction of defects in perovskite films, the siloxane-optimized PSCs achieved a championship efficiency of 22.0%, which is one of the highest performance for fully printed devices. The optimized device retains 80% of the initial PCE after 800 h AM 1.5G one-sun illumination, and only decreases 20% after 160 h of ultraviolet light (365 nm, 20 mW cm~(?2)) irradiation.

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来源
《Advanced functional materials》 |2022年第39期|2206412.1-2206412.11|共11页
作者
Feng Li; Chenxiang Gong; Baojin FanZhi XingXiangchuan MengShaohua ZhangXiaotian HuYiwang Chen;
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作者单位

School of physics and materials Nanchang University 999 Xuefu Avenue, Nanchang 330031, P. R. China,School of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry Nanchang University 999 Xuefu Avenue, Nanchang 330031, P. R. China;

School of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry Nanchang University 999 Xuefu Avenue, Nanchang 330031, P. R. China;

School of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry Nanchang University 999 Xuefu Avenue, Nanchang 330031, P. R. China,National Engineering Research Center for Carbohydrate Synthesis/Key Lab of Fluorine and Silicon for School of physics and materials Nanchang University 999 Xuefu Avenue, Nanchang 330031, P. R. ChinaSchool of physics and materials Nanchang University 999 Xuefu Avenue, Nanchang 330031, P. R. China,School of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry Nanchang University 999 Xuefu Avenue, Nanchang 330031, P. R. China,P;

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正文语种英语
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coffee-ring effect; efficiency loss; full-printing technology; gradient crystallization; irradiation stability;

3D Network-Assisted Crystallization for Fully Printed Perovskite Solar Cells with Superior Irradiation Stability

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