Efficient and stable Ruddlesden–Popper perovskite solar cell with tailored interlayer molecular interaction

Hui Ren; Shidong Yu; Lingfeng Chao; Yingdong Xia; Yuanhui Sun; Shouwei Zuo; Fan Li; Tingting Niu; Yingguo Yang; Huanxin Ju; Bixin Li; Haiyan Du; Xingyu Gao; Jing Zhang; Jianpu Wang; Lijun Zhang; Yonghua Chen; Wei Huang

doi:10.1038/s41566-019-0572-6

Efficient and stable Ruddlesden–Popper perovskite solar cell with tailored interlayer molecular interaction

Hui Ren, Shidong Yu, Lingfeng Chao, Yingdong Xia, Yuanhui Sun, Shouwei Zuo, Fan Li, Tingting Niu, Yingguo Yang, Huanxin Ju, Bixin Li, Haiyan Du, Xingyu Gao, Jing Zhang, Jianpu Wang, Lijun Zhang, Yonghua Chen, Wei Huang

SCHOOL OF FLEXIBLE ELECTRONICS(FUTURE TECHNOLOGIES)|INSTITUTE OF ADVANCED MATERIALS(IAM)

Research output: Contribution to journal › Article › peer-review

506 Scopus citations

Abstract

Two-dimensional Ruddlesden–Popper phase (2DRP) perovskites are known to exhibit improved photostability and environmental stability compared with their three-dimensional (3D) counterparts. However, fundamental questions remain over the interaction between the bulky alkylammoniums and the 2DRP perovskite framework. Here, we unambiguously demonstrate that a sulfur–sulfur interaction is present for a new bulky alkylammonium, 2-(methylthio)ethylamine hydrochloride (MTEACl). In addition to a weaker van der Waals interaction, the interaction between sulfur atoms in two MTEA molecules enables a (MTEA)₂(MA)₄Pb₅I₁₆ (n = 5) perovskite framework with enhanced charge transport and stabilization. The result is 2DRP perovskite solar cells with significantly improved efficiency and stability. Cells with a power conversion efficiency as high as 18.06% (17.8% certified) are achieved, along with moisture tolerance for up to 1,512 h (under 70% humidity conditions), thermal stability for 375 h (at 85 °C) and stability under continuous light stress (85% of the initial efficiency retained over 1,000 h of operation at the maximum power point).

Original language	English
Pages (from-to)	154-163
Number of pages	10
Journal	Nature Photonics
Volume	14
Issue number	3
DOIs	https://doi.org/10.1038/s41566-019-0572-6
State	Published - 1 Mar 2020

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title = "Efficient and stable Ruddlesden–Popper perovskite solar cell with tailored interlayer molecular interaction",

abstract = "Two-dimensional Ruddlesden–Popper phase (2DRP) perovskites are known to exhibit improved photostability and environmental stability compared with their three-dimensional (3D) counterparts. However, fundamental questions remain over the interaction between the bulky alkylammoniums and the 2DRP perovskite framework. Here, we unambiguously demonstrate that a sulfur–sulfur interaction is present for a new bulky alkylammonium, 2-(methylthio)ethylamine hydrochloride (MTEACl). In addition to a weaker van der Waals interaction, the interaction between sulfur atoms in two MTEA molecules enables a (MTEA)2(MA)4Pb5I16 (n = 5) perovskite framework with enhanced charge transport and stabilization. The result is 2DRP perovskite solar cells with significantly improved efficiency and stability. Cells with a power conversion efficiency as high as 18.06% (17.8% certified) are achieved, along with moisture tolerance for up to 1,512 h (under 70% humidity conditions), thermal stability for 375 h (at 85 °C) and stability under continuous light stress (85% of the initial efficiency retained over 1,000 h of operation at the maximum power point).",

author = "Hui Ren and Shidong Yu and Lingfeng Chao and Yingdong Xia and Yuanhui Sun and Shouwei Zuo and Fan Li and Tingting Niu and Yingguo Yang and Huanxin Ju and Bixin Li and Haiyan Du and Xingyu Gao and Jing Zhang and Jianpu Wang and Lijun Zhang and Yonghua Chen and Wei Huang",

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doi = "10.1038/s41566-019-0572-6",

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T1 - Efficient and stable Ruddlesden–Popper perovskite solar cell with tailored interlayer molecular interaction

AU - Ren, Hui

AU - Yu, Shidong

AU - Chao, Lingfeng

AU - Xia, Yingdong

AU - Sun, Yuanhui

AU - Zuo, Shouwei

AU - Li, Fan

AU - Niu, Tingting

AU - Yang, Yingguo

AU - Ju, Huanxin

AU - Li, Bixin

AU - Du, Haiyan

AU - Gao, Xingyu

AU - Zhang, Jing

AU - Wang, Jianpu

AU - Zhang, Lijun

AU - Chen, Yonghua

AU - Huang, Wei

PY - 2020/3/1

Y1 - 2020/3/1

N2 - Two-dimensional Ruddlesden–Popper phase (2DRP) perovskites are known to exhibit improved photostability and environmental stability compared with their three-dimensional (3D) counterparts. However, fundamental questions remain over the interaction between the bulky alkylammoniums and the 2DRP perovskite framework. Here, we unambiguously demonstrate that a sulfur–sulfur interaction is present for a new bulky alkylammonium, 2-(methylthio)ethylamine hydrochloride (MTEACl). In addition to a weaker van der Waals interaction, the interaction between sulfur atoms in two MTEA molecules enables a (MTEA)2(MA)4Pb5I16 (n = 5) perovskite framework with enhanced charge transport and stabilization. The result is 2DRP perovskite solar cells with significantly improved efficiency and stability. Cells with a power conversion efficiency as high as 18.06% (17.8% certified) are achieved, along with moisture tolerance for up to 1,512 h (under 70% humidity conditions), thermal stability for 375 h (at 85 °C) and stability under continuous light stress (85% of the initial efficiency retained over 1,000 h of operation at the maximum power point).

AB - Two-dimensional Ruddlesden–Popper phase (2DRP) perovskites are known to exhibit improved photostability and environmental stability compared with their three-dimensional (3D) counterparts. However, fundamental questions remain over the interaction between the bulky alkylammoniums and the 2DRP perovskite framework. Here, we unambiguously demonstrate that a sulfur–sulfur interaction is present for a new bulky alkylammonium, 2-(methylthio)ethylamine hydrochloride (MTEACl). In addition to a weaker van der Waals interaction, the interaction between sulfur atoms in two MTEA molecules enables a (MTEA)2(MA)4Pb5I16 (n = 5) perovskite framework with enhanced charge transport and stabilization. The result is 2DRP perovskite solar cells with significantly improved efficiency and stability. Cells with a power conversion efficiency as high as 18.06% (17.8% certified) are achieved, along with moisture tolerance for up to 1,512 h (under 70% humidity conditions), thermal stability for 375 h (at 85 °C) and stability under continuous light stress (85% of the initial efficiency retained over 1,000 h of operation at the maximum power point).

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Efficient and stable Ruddlesden–Popper perovskite solar cell with tailored interlayer molecular interaction

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