High performance printable perovskite solar cells based on Cs0.1FA0.9PbI3 in mesoporous scaffolds

被引：39

作者：

Hou, Xiaomeng ^{[1
]}

Xu, Mi ^{[1
]}

Tong, Changheng ^{[1
]}

Ji, Wenxian ^{[1
]}

Fu, Zhengyang ^{[1
]}

Wan, Zhining ^{[1
]}

Hao, Fang ^{[2
]}

Ming, Yue ^{[1
]}

Liu, Shuang ^{[1
]}

Hu, Yue ^{[1
]}

Han, Hongwei ^{[1
]}

Rong, Yaoguang ^{[1
]}

Yao, Yan ^{[2
,3
]}

机构：

[1] Huazhong Univ Sci & Technol, Michael Gratzel Ctr Mesoscop Solar Cells, Wuhan Natl Lab Optoelect, China EU Inst Clean & Renewable Energy, Wuhan 430074, Hubei, Peoples R China

[2] Univ Houston, Dept Elect & Comp Engn, Houston, TX 77204 USA

[3] Univ Houston, Texas Ctr Superconduct, Houston, TX 77204 USA

来源：

JOURNAL OF POWER SOURCES | 2019年 / 415卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Perovskite solar cells; Mesoporous scaffold; FAPbI(3); Phase transition; HOLE-CONDUCTOR-FREE; HALIDE PEROVSKITES; GRAIN-GROWTH; EFFICIENT; TRIHALIDE; EMERGENCE; LENGTHS; LAYERS; OXIDE;

D O I：

10.1016/j.jpowsour.2019.01.065

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Methylammonium lead triiodide (MAPbI(3)) has been investigated as the recent most exciting light absorber materials for photovoltaics. Printable perovskite solar cells based on MAPbI(3) in a TiO2/ZrO2/Carbon triple-layer mesoporous scaffold have shown simple fabrication process and impressive stability. Moving towards formamidinium lead triiodide (FAPbI(3)) as the light absorber, which has a bandgap of 1.48 eV that matches the optimum bandgap (1.34 eV) of a single-junction solar cell, will result in further improvement in power conversion efficiency. However, it is challenging to deposit high-quality FAPbI(3 )in a 10-mu m-thick mesoporous scaffold due to the incomplete one-step conversion of perovskite precursors restrained in the mesoporous scaffold. Here we report printable perovskite solar cells with high-quality Cs(0.1)FA(0.9)PbI(3) absorber inside mesoporous scaffolds using a mixed solvent vapor assisted crystallization approach. A power conversion efficiency of 15% is obtained with a spectral response up to 840 nm. The phase transition and crystal growth of Cs(0.1)FAPbI(3) are carefully monitored in the mesoporous scaffold. This work not only opens up new methods for fabricating efficient and stable solar cells but also provides a deeper understanding of crystal growth inside constrained nanostructures.

引用

页码：105 / 111

页数：7

共 43 条

[1] Non-wetting surface-driven high-aspect-ratio crystalline grain growth for efficient hybrid perovskite solar cells [J].