A patterned titania nanorod array enables high fill factor in perovskite solar cells

Abstract Repressing the thermal decomposition during the process of heat treatment plays an indispensable part in the preparation of perovskite films. Here, a methylammonium iodide healing method was applied to prevent the volatilization of the organic component inside the perovskite structure during the heat treatment. High-quality CH3NH3PbI3 film with a much larger grain size over 800 nm was successfully fabricated via this healing method. Besides, the absorption and photoluminescence intensity were also both improved. Finally, the best power conversion efficiency of 18.89% with a fill factor over 80% was realized in an n–i–p configuration while possessing outstanding stability. This work suggests that methylammonium iodide healing method is a reliable way to promote crystal growth and improve the photovoltaic performance and humidity stability of the CH3NH3PbI3 solar cells.

Download Full-text

Approaching the fill factor Shockley–Queisser limit in stable, dopant-free triple cation perovskite solar cells

Energy & Environmental Science ◽

10.1039/c7ee00899f ◽

2017 ◽

Vol 10 (6) ◽

pp. 1530-1539 ◽

Cited By ~ 158

Author(s):

Martin Stolterfoht ◽

Christian M. Wolff ◽

Yohai Amir ◽

Andreas Paulke ◽

Lorena Perdigón-Toro ◽

...

Keyword(s):

Solar Cells ◽

Charge Carrier ◽

Fill Factor ◽

Perovskite Solar Cells ◽

Large Area ◽

High Fill Factor

High fill factor, large area perovskite solar cells are realized with undoped organic transport layers by optimizing the charge carrier transit through PTAA.

Download Full-text

Sulfur-annulated perylenediimide as an interfacial material enabling inverted perovskite solar cells with over 20% efficiency and high fill factors exceeding 83%

Journal of Materials Chemistry A ◽

10.1039/c9ta07349c ◽

2019 ◽

Vol 7 (37) ◽

pp. 21176-21181 ◽

Cited By ~ 2

Author(s):

Fei Wu ◽

Zhenghui Luo ◽

Linna Zhu ◽

Chao Chen ◽

Huiqiang Lu ◽

...

Keyword(s):

Solar Cells ◽

Fill Factor ◽

Perovskite Solar Cells ◽

Interfacial Material ◽

High Fill Factor

An inverted PSC with a PDI-T interlayer exhibits an excellent efficiency of 20.41%, with a high fill factor (FF) of 83.63%.

Download Full-text

Spontaneous surface/interface ligand-anchored functionalization for extremely high fill factor over 86% in perovskite solar cells

Nano Energy ◽

10.1016/j.nanoen.2020.104929 ◽

2020 ◽

Vol 75 ◽

pp. 104929 ◽

Cited By ~ 6

Author(s):

Wu-Qiang Wu ◽

Jun-Xing Zhong ◽

Jin-Feng Liao ◽

Chengxi Zhang ◽

Yecheng Zhou ◽

...

Keyword(s):

Solar Cells ◽

Fill Factor ◽

Perovskite Solar Cells ◽

High Fill Factor

Download Full-text

A multifunctional additive of scandium trifluoromethanesulfonate to achieve efficient inverted perovskite solar cells with a high fill factor of 83.80%

Journal of Materials Chemistry A ◽

10.1039/d0ta07567a ◽

2020 ◽

Vol 8 (37) ◽

pp. 19555-19560 ◽

Cited By ~ 1

Author(s):

Shufang Li ◽

Linna Zhu ◽

Zhipeng Kan ◽

Yong Hua ◽

Fei Wu

Keyword(s):

Solar Cells ◽

Fill Factor ◽

Perovskite Solar Cells ◽

Multifunctional Additive ◽

High Fill Factor

A multifunctional additive of scandium trifluoromethanesulfonate is introduced into a perovskite film to achieve efficient inverted perovskite solar cells with a high fill factor of 83.80%.

Download Full-text