期刊
ENERGY & ENVIRONMENTAL SCIENCE
卷 15, 期 6, 页码 2567-2580出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2ee00433j
关键词
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资金
- National Key Research and Development Project - Ministry of Science and Technology of China [2021YFB3800104]
- National Natural Science Foundation of China [51822203, 52002140, U20A20252, 51861145404, 62105293]
- Young Elite Scientists Sponsorship Program by CAST
- Self-determined and Innovative Research Funds of HUST [2020kfyXJJS008, 2018KFYRCPY003]
- Natural Science Foundation of Hubei Province [ZRMS2020001132]
- Shenzhen Science and Technology Innovation Committee [JCYJ20180507182257563]
- Outstanding Young Talents Innovation Team Support Plan of Zhengzhou University
- Innovation Project of Optics Valley Laboratory [OVL2021BG008]
- Energy Materials and Surface Sciences Unit of the Okinawa Institute of Science and Technology Graduate University
A functionalized poly(triarylamine) was used as the hole transport layer in inverted perovskite solar cells, resulting in improved efficiency and stability.
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.
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