journal article·2023-01-13

Tailoring Two-Dimensional Ruddlesden–Popper Perovskite via 1D Perovskitoid Enables Efficient and Stable Solar Cells

Jiawen Wu, Haipeng Zeng, Yaru Li, Zhengyan Jiang, Chang Liu, Jiyao Zhang, Xianyong Zhou, Bihua Hu, Jiabang Chen, Hang Hu, Deng Wang, Yong Zhang, Yanliang Liu, Zhixin Liu, Xingzhu Wang, Baomin Xu

ACS Energy Letters· Volume 8· Issue 1
Publisher page

Abstract

Two-dimensional (2D) Ruddlesden–Popper (RP) perovskite solar cells (PSCs) have received increasing attention due to their promising optoelectronic properties. Herein, based on low-dimensional engineering, we employ the 1D perovskitoid BZPbI3 (BZ = benzamidine) to tailor the (4F-PEA)2(FA0.3MA0.7)4Pb5I16 perovskite, obtaining the 1D/2D mixed low-dimensional perovskite with favorable phase distribution, orderly crystal orientation, and lower defect density. Furthermore, the 1D BZPbI3 induces a large number of particles to form on the surface, considerably increasing the electrical quality and intrinsic stability of PSCs. Consequently, the 1D/2D PSCs (n = 5) reach a power conversion efficiency (PCE) approaching 20%, accompanied by improved electroluminescent external quantum efficiency. The devices show admirable long-term operational stability, retaining 85% of their initial PCE after continuous illumination at maximum power point (MPP) over 2000 h (50 ± 5 °C). This work illustrates the advantages of 1D perovskitoid in achieving efficient and stable 2D perovskite photovoltaic and other optoelectronic devices.
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Research context

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China

Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China

Michael Grätzel Center for Mesoscopic Solar Cells, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China

Shenzhen Putai Technology Co., Ltd., Shenzhen 518110, China

Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices, Southern University of Science and Technology, Shenzhen 518055, China

Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong, Southern University of Science and Technology, Shenzhen 518055, China

Funding

Ministry of Science and Technology of the People's Republic of China · China Postdoctoral Science Foundation · Science, Technology and Innovation Commission of Shenzhen Municipality · National Natural Science Foundation of China · Natural Science Foundation of Guangdong Province · Guangdong-Hong Kong-Macao Joint Laboratory

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