Fabricating High-Efficient Blade-Coated Perovskite Solar Cells under Ambient Condition Using Lead Acetate Trihydrate

Kong, Weiguang1,2; Wang, Guoliang1; Zheng, Jiming1; Hu, Hang1; Chen, Hong1; Li, Yunlong1; Hu, Manman1; Zhou, Xianyong1; Liu, Chang1,2; Chandrashekar, Bananakere Nanjegowda1; Amini, Abbas3,4; Wang, Jianbo2; Xu, Baomin1; Cheng, Chun1

2018-03

10.1002/solr.201700214

Solar RRL   影响因子和分区

2367-198X

Heat-assisted blade-coating (HABC) technique can be applied for scalable production of perovskite solar cells (PSCs). With the current setups, HABC is not applicable in ambient atmosphere due to the adverse impact of humidity on perovskite films. Here, a modified HABC method is reported to achieve high quality perovskite films under harsh ambient conditions. By using lead acetate trihydrate (PbAc2 center dot 3H(2)O) as the lead source, a rapid low-temperature, short time annealing treatment is discovered. It is found that a small amount of hydrate water in PbAC(2)center dot 3H(2)O lead source lead to dense and oriented nuclei at the blade-coating stage. The concomitant MAPbI(3)center dot xH(2)O on the surface and grain boundaries of perovskite films isolates the moisture in ambient during the annealing process, melts to form a quasi-liquid nutrition pool for the cultivation of MAPbI(3) grain domains via Ostwald ripening. The as-prepared perovskite films consist of large grain domains of up to 100 mu m, which are highly orientated. Based on these films, the conversion efficiency of PSCs reaches 15.8 +/- 0.6%, a jump of nearly 40% compared with that of PbAc2-sourced devices (11.4 +/- 1.0%). The robust strategy presented here is a significant contribution towards scalable production of high efficiency PSCs under ambient condition.

ambient atmosphere blade-coating lead acetate Ostwald ripening perovskite solar cells

ESCI ; SCI ; EI

英语

第一

Guangdong-Hong Kong joint innovation project[2016A050503012]

Materials Science

Materials Science, Multidisciplinary

WOS:000426655300009

WILEY-V C H VERLAG GMBH

20200908235393

Grain boundaries ; Coatings ; Efficiency ; Temperature ; Perovskite solar cells ; Lead compounds ; Perovskite

Minerals:482.2 ; Thermodynamics:641.1 ; Solar Cells:702.3 ; Coating Materials:813.2 ; Production Engineering:913.1

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China;
2.Wuhan Univ, Dept Phys, Wuhan 430072, Hubei, Peoples R China;
3.Western Sydney Univ, Ctr Infrastruct Engn, Kingswood, NSW 2751, Australia;
4.Australian Coll Kuwait, Dept Mech Engn, Mishref 40000, Kuwait

Kong, Weiguang,Wang, Guoliang,Zheng, Jiming,et al. Fabricating High-Efficient Blade-Coated Perovskite Solar Cells under Ambient Condition Using Lead Acetate Trihydrate[J]. Solar RRL,2018,2(3).

Kong, Weiguang.,Wang, Guoliang.,Zheng, Jiming.,Hu, Hang.,Chen, Hong.,...&Cheng, Chun.(2018).Fabricating High-Efficient Blade-Coated Perovskite Solar Cells under Ambient Condition Using Lead Acetate Trihydrate.Solar RRL,2(3).

Kong, Weiguang,et al."Fabricating High-Efficient Blade-Coated Perovskite Solar Cells under Ambient Condition Using Lead Acetate Trihydrate".Solar RRL 2.3(2018).