Understanding the impact of surface roughness: changing from FTO to ITO to PEN/ITO for flexible perovskite solar cells

被引：25

作者：

Holzhey, Philippe ^{[1
]}

Prettl, Michael ^{[2
]}

Collavini, Silvia

Mortan, Claudiu ^{[2
]}

Saliba, Michael ^{[2
,3
]}

机构：

[1] Univ Fribourg, Adolphe Merkle Inst, CH-1700 Fribourg, Switzerland

[2] Univ Stuttgart, Inst Photovolta, Stuttgart, Germany

[3] Forschungszentrum Julich GmbH, IEK 5 Photovoltaik, Julich, Germany

来源：

SCIENTIFIC REPORTS | 2023年 / 13卷 / 01期

关键词：

ELECTRONIC-STRUCTURE; EMERGENCE; EFFICIENT; ENERGY; COST;

D O I：

10.1038/s41598-023-33147-6

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

So far, single-junction flexible PSCs have been lacking in efficiency compared to rigid PSCs. Recently, >23% have been reported. We therefore focus on understanding the differences between rigid and flexible substrates. One often neglected parameter is the different surface roughness which directly affects the perovskite film formation. Therefore, we adjust the layer thickness of SnO2 and the perovskite layers. Furthermore, we introduce a PMMA layer between the perovskite and the hole transporting material (HTM), spiro-MeOTAD, to mitigate shunting pathways. In addition, the multication perovskite Rb(0.02)Cs(0.05)FA(0.77)MA(0.16)Pb(I0.83Br0.17)(3) is employed, resulting in stabilized performances of 16% for a flexible ITO substrate and 19% on a rigid ITO substrate.

引用

页数：6

共 32 条

[11] Wettability versus roughness of engineering surfaces [J].