Robust hole transport material with interface anchors enhances the efficiency and stability of inverted formamidinium-cesium perovskite solar cells with a certified efficiency of 22.3%

被引：87

作者：

Chen, Rui ^{[1
]}

Liu, Sanwan ^{[1
]}

Xu, Xiaojia ^{[2
]}

Ren, Fumeng ^{[1
]}

Zhou, Jing ^{[1
]}

Tian, Xueying ^{[1
]}

Yang, Zhichun ^{[1
]}

Guanz, Xinyu ^{[1
]}

Liu, Zonghao ^{[1
,3
]}

Zhang, Shasha ^{[4
]}

Zhang, Yiqiang ^{[4
]}

Wu, Yongzhen ^{[2
]}

Han, Liyuan ^{[5
]}

Qi, Yabing ^{[6
]}

Chen, Wei ^{[1
,3
]}

机构：

[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Luoyu Rd 1037, Wuhan 430074, Peoples R China

[2] East China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China

[3] Opt Valley Lab, Wuhan 430074, Hubei, Peoples R China

[4] Zhengzhou Univ, Sch Mat Sci & Engn, Henan Inst Adv Technol, Zhengzhou 450001, Peoples R China

[5] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China

[6] Okinawa Inst Sci & Technol Grad Univ OIST, Energy Mat & Surface Sci Unit EMSSU, 1919-1 Tancha, Onna, Okinawa 9040495, Japan

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2022年 / 15卷 / 06期

基金：

中国国家自然科学基金;

关键词：

LONG-TERM STABILITY; VOLTAGE;

D O I：

10.1039/d2ee00433j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Perovskite solar cells (PSCs) require both high efficiency and reliable long-term stability for commercialization. As important as the perovskite layer, charge transport layers and their contact with the adjacent perovskite layer also play crucial roles in the efficiency and stability of PSCs. Herein, we report the use of pyridine anchoring group functionalized poly(triarylamine) (p-PY) as the hole transport layer at buried interfaces between the conductive oxide substrate and formamidinium-cesium perovskite layer to enhance the efficiency and stability of inverted PSCs. The p-PY based device exhibited a record efficiency of 22.8% (certified efficiency of 22.3%) and maintained 97.5% of the initial efficiency after operation under 1 sun equivalent white-light light-emitting diode array illumination with maximum power point tracking at 45 degrees C for 1000 h, and 94% and 81% of the initial efficiencies after harsh thermal aging at 85 degrees C for 500 h and at 120 degrees C for 200 h, respectively.

引用

页码：2567 / 2580

页数：14

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