This title appears in the Scientific Report :
2021
Please use the identifier:
http://dx.doi.org/10.1002/aenm.202000173 in citations.
Please use the identifier: http://hdl.handle.net/2128/27238 in citations.
Spontaneously Self‐Assembly of a 2D/3D Heterostructure Enhances the Efficiency and Stability in Printed Perovskite Solar Cells
Spontaneously Self‐Assembly of a 2D/3D Heterostructure Enhances the Efficiency and Stability in Printed Perovskite Solar Cells
As perovskite solar cells (PSCs) are highly efficient, demonstration of high‐performance printed devices becomes important. 2D/3D heterostructures have recently emerged as an attractive way to relieving the film inhomogeneity and instability in perovskite devices. In this work, a 2D/3D ensemble with...
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Personal Name(s): | Hu, Jinlong |
---|---|
Wang, Chuan / Qiu, Shudi / Zhao, Yicheng / Gu, Ening / Zeng, Linxiang / Yang, Yuzhao / Li, Chaohui / Liu, Xianhu / Forberich, Karen / Brabec, Christoph / Nazeeruddin, Mohammad Khaja / Mai, Yaohua (Corresponding author) / Guo, Fei (Corresponding author) | |
Contributing Institute: |
Helmholtz-Institut Erlangen-Nürnberg Erneuerbare Energien; IEK-11 |
Published in: | Advanced energy materials, 10 (2020) 17, S. 2000173 - |
Imprint: |
Weinheim
Wiley-VCH
2020
|
DOI: |
10.1002/aenm.202000173 |
Document Type: |
Journal Article |
Research Program: |
Solar cells of the next generation |
Subject (ZB): | |
Link: |
Get full text Published on 2020-03-16. Available in OpenAccess from 2021-03-16. |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/27238 in citations.
As perovskite solar cells (PSCs) are highly efficient, demonstration of high‐performance printed devices becomes important. 2D/3D heterostructures have recently emerged as an attractive way to relieving the film inhomogeneity and instability in perovskite devices. In this work, a 2D/3D ensemble with 2D perovskites self‐assembled atop 3D methylammonium lead triiodide (MAPbI3) via a one‐step printing process is shown. A clean and flat interface is observed in the 2D/3D bilayer heterostructure for the first time. The 2D perovskite capping layer significantly suppresses nonradiative charge recombination, resulting in a marked increase in open‐circuit voltage (VOC) of the devices by up to 100 mV. An ultrahigh VOC of 1.20 V is achieved for MAPbI3 PSCs, corresponding to 91% of the Shockley–Queisser limit. Moreover, notable enhancement in light, thermal, and moisture stability is obtained as a result of the protective barrier of the 2D perovskites. These results suggest a viable approach for scalable fabrication of highly efficient perovskite solar cells with enhanced environmental stability. |