Double-side 2D/3D heterojunctions for inverted perovskite solar cells

被引：208

作者：

Azmi, Randi ^{[1
]}

Utomo, Drajad Satrio ^{[1
]}

Vishal, Badri ^{[1
]}

Zhumagali, Shynggys ^{[1
]}

Dally, Pia ^{[1
]}

Risqi, Andi Muhammad ^{[2
]}

Prasetio, Adi ^{[1
]}

Ugur, Esma ^{[1
]}

Cao, Fangfang ^{[3
]}

Imran, Imil Fadli ^{[1
]}

Said, Ahmed Ali ^{[1
]}

Pininti, Anil Reddy ^{[1
]}

Subbiah, Anand Selvin ^{[1
]}

Aydin, Erkan ^{[1
]}

Xiao, Chuanxiao ^{[3
,4
]}

Seok, Sang Il ^{[2
]}

De Wolf, Stefaan ^{[1
]}

机构：

[1] King Abdullah Univ Sci & Technol KAUST, KAUST Solar Ctr KSC, Phys Sci & Engn Div PSE, Mat Sci & Engn Program MSE, Thuwal, Saudi Arabia

[2] Ulsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Ulsan, South Korea

[3] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo, Peoples R China

[4] Ningbo New Mat Testing & Evaluat Ctr Co Ltd, Ningbo, Peoples R China

来源：

NATURE | 2024年 / 628卷 / 8006期

基金：

新加坡国家研究基金会;

关键词：

EFFICIENT; INTERFACES;

D O I：

10.1038/s41586-024-07189-3

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：

Defects at the top and bottom interfaces of three-dimensional (3D) perovskite photoabsorbers diminish the performance and operational stability of perovskite solar cells owing to charge recombination, ion migration and electric-field inhomogeneities1-5. Here we demonstrate that long alkyl amine ligands can generate near-phase-pure 2D perovskites at the top and bottom 3D perovskite interfaces and effectively resolve these issues. At the rear-contact side, we find that the alkyl amine ligand strengthens the interactions with the substrate through acid-base reactions with the phosphonic acid group from the organic hole-transporting self-assembled monolayer molecule, thus regulating the 2D perovskite formation. With this, inverted perovskite solar cells with double-side 2D/3D heterojunctions achieved a power conversion efficiency of 25.6% (certified 25.0%), retaining 95% of their initial power conversion efficiency after 1,000 h of 1-sun illumination at 85 degrees C in air. A study presents a technique to sandwich 3D perovskite with 2D perovskites at the top and bottom, improving the performance and stability of perovskite solar cells.

引用

页码：93 / 98

页数：15

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