Bifunctional ligand-induced preferred crystal orientation enables highly efficient perovskite solar cells

Xingcheng Li; Shuang Gao; Xin Wu; Qi Liu; Leilei Zhu; Chenyue Wang; Yangkai Wang; Zheng Liu; Wenjing Chen; Xinyu Li; Peng Xiao; Qiuping Huang; Tao Chen; Zhenyu Li; Xingyu Gao; Zhengguo Xiao; Yalin Lu; Xiao Cheng Zeng; Shuang Xiao; Zonglong Zhu; Shangfeng Yang

doi:10.1016/j.joule.2024.07.009

Bifunctional ligand-induced preferred crystal orientation enables highly efficient perovskite solar cells

Xingcheng Li
, Shuang Gao
, Xin Wu
, Qi Liu
, Leilei Zhu
, Chenyue Wang
, Yangkai Wang
, Zheng Liu
, Wenjing Chen
, Xinyu Li
, Peng Xiao
, Qiuping Huang
, Tao Chen
, Zhenyu Li
, Xingyu Gao
, Zhengguo Xiao
, Yalin Lu
, Xiao Cheng Zeng
, Shuang Xiao^*
, Zonglong Zhu^*

Shangfeng Yang^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

93 Citations (Scopus)

Abstract

Crystallization orientation and the buried interface have been proven to be key factors determining the efficiency of perovskite solar cells (PSCs). Here, we report a facile strategy to concomitantly induce (100)-oriented perovskite and improve buried interface by incorporating a bifunctional ligand 2-(methylthio) ethylamine hydrochloride (METEAM) into perovskite precursor solution. METEAM molecules preferentially adsorb on (100) facets of perovskite via strong interactions with perovskite lattice to induce oriented perovskite crystallization. Meanwhile, METEAM molecules spontaneously aggregate at the buried interface and operate as a bridge between the perovskite and tin oxide (SnO₂) electron transport layer to bidirectionally passivate their defects. As-prepared perovskite films exhibit suitable energy level and high mobility for interfacial charge transfer, low trap state density, and long carrier lifetime. The resultant conventional-structure PSC devices deliver a power conversion efficiency (PCE) of 26.1% (certified 25.8%) with improved operational and ambient stabilities, which is among the highest PCE of conventional PSCs. © 2024 Elsevier Inc.

Original language	English
Pages (from-to)	3169-3185
Journal	Joule
Volume	8
Issue number	11
Online published	13 Aug 2024
DOIs	https://doi.org/10.1016/j.joule.2024.07.009
Publication status	Published - 20 Nov 2024

Bibliographical note

Author(s) information for this publication is provided by the author(s) concerned.

Funding

S.Y. acknowledges the National Natural Science Foundation of China (51925206 and U1932214), the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB0450301), and the Fundamental Research Funds for the Central Universities (20720220009 and WK2060000051). Z.Z. acknowledges the New Faculty Startup Grant of the City University of Hong Kong (9610421), Innovation and Technology Fund (ITS/095/20, GHP/100/20SZ, and GHP/102/20GD), the Early Career Scheme (ECS) grant (21301319) and General Research Fund (GRF) grant (11306521) from the Research Grants Council of Hong Kong, the Guangdong Provincial Science and Technology Plan (2021A0505110003), the Natural Science Foundation of Guangdong Province (2019A1515010761), and the Science Technology and Innovation Committee of Shenzhen Municipality (SGDX20210823104002015). We thank the beamlines BL14B1 at Shanghai Synchrotron Radiation Facility (SSRF) and BL11U at National Synchrotron Radiation Laboratory (NSRL) for providing the beam time and Q.S. at SIMIT (Shanghai) for certifying our devices with guidance on the J-V measurements.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Research Keywords

buried interface
crystal orientation
defects passivation
ligand
perovskite solar cells

RGC Funding Information

RGC-funded

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10.1016/j.joule.2024.07.009Licence: Elsevier user license

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Cite this

Li, X., Gao, S., Wu, X., Liu, Q., Zhu, L., Wang, C., Wang, Y., Liu, Z., Chen, W., Li, X., Xiao, P., Huang, Q., Chen, T., Li, Z., Gao, X., Xiao, Z., Lu, Y., Zeng, X. C., Xiao, S., ... Yang, S. (2024). Bifunctional ligand-induced preferred crystal orientation enables highly efficient perovskite solar cells. Joule, 8(11), 3169-3185. https://doi.org/10.1016/j.joule.2024.07.009

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title = "Bifunctional ligand-induced preferred crystal orientation enables highly efficient perovskite solar cells",

abstract = "Crystallization orientation and the buried interface have been proven to be key factors determining the efficiency of perovskite solar cells (PSCs). Here, we report a facile strategy to concomitantly induce (100)-oriented perovskite and improve buried interface by incorporating a bifunctional ligand 2-(methylthio) ethylamine hydrochloride (METEAM) into perovskite precursor solution. METEAM molecules preferentially adsorb on (100) facets of perovskite via strong interactions with perovskite lattice to induce oriented perovskite crystallization. Meanwhile, METEAM molecules spontaneously aggregate at the buried interface and operate as a bridge between the perovskite and tin oxide (SnO2) electron transport layer to bidirectionally passivate their defects. As-prepared perovskite films exhibit suitable energy level and high mobility for interfacial charge transfer, low trap state density, and long carrier lifetime. The resultant conventional-structure PSC devices deliver a power conversion efficiency (PCE) of 26.1\% (certified 25.8\%) with improved operational and ambient stabilities, which is among the highest PCE of conventional PSCs. {\textcopyright} 2024 Elsevier Inc.",

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author = "Xingcheng Li and Shuang Gao and Xin Wu and Qi Liu and Leilei Zhu and Chenyue Wang and Yangkai Wang and Zheng Liu and Wenjing Chen and Xinyu Li and Peng Xiao and Qiuping Huang and Tao Chen and Zhenyu Li and Xingyu Gao and Zhengguo Xiao and Yalin Lu and Zeng, \{Xiao Cheng\} and Shuang Xiao and Zonglong Zhu and Shangfeng Yang",

note = "Author(s) information for this publication is provided by the author(s) concerned.",

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doi = "10.1016/j.joule.2024.07.009",

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Li, X, Gao, S, Wu, X, Liu, Q, Zhu, L, Wang, C, Wang, Y, Liu, Z, Chen, W, Li, X, Xiao, P, Huang, Q, Chen, T, Li, Z, Gao, X, Xiao, Z, Lu, Y, Zeng, XC, Xiao, S, Zhu, Z & Yang, S 2024, 'Bifunctional ligand-induced preferred crystal orientation enables highly efficient perovskite solar cells', Joule, vol. 8, no. 11, pp. 3169-3185. https://doi.org/10.1016/j.joule.2024.07.009

TY - JOUR

T1 - Bifunctional ligand-induced preferred crystal orientation enables highly efficient perovskite solar cells

AU - Li, Xingcheng

AU - Gao, Shuang

AU - Wu, Xin

AU - Liu, Qi

AU - Zhu, Leilei

AU - Wang, Chenyue

AU - Wang, Yangkai

AU - Liu, Zheng

AU - Chen, Wenjing

AU - Li, Xinyu

AU - Xiao, Peng

AU - Huang, Qiuping

AU - Chen, Tao

AU - Li, Zhenyu

AU - Gao, Xingyu

AU - Xiao, Zhengguo

AU - Lu, Yalin

AU - Zeng, Xiao Cheng

AU - Xiao, Shuang

AU - Zhu, Zonglong

AU - Yang, Shangfeng

N1 - Author(s) information for this publication is provided by the author(s) concerned.

PY - 2024/11/20

Y1 - 2024/11/20

N2 - Crystallization orientation and the buried interface have been proven to be key factors determining the efficiency of perovskite solar cells (PSCs). Here, we report a facile strategy to concomitantly induce (100)-oriented perovskite and improve buried interface by incorporating a bifunctional ligand 2-(methylthio) ethylamine hydrochloride (METEAM) into perovskite precursor solution. METEAM molecules preferentially adsorb on (100) facets of perovskite via strong interactions with perovskite lattice to induce oriented perovskite crystallization. Meanwhile, METEAM molecules spontaneously aggregate at the buried interface and operate as a bridge between the perovskite and tin oxide (SnO2) electron transport layer to bidirectionally passivate their defects. As-prepared perovskite films exhibit suitable energy level and high mobility for interfacial charge transfer, low trap state density, and long carrier lifetime. The resultant conventional-structure PSC devices deliver a power conversion efficiency (PCE) of 26.1% (certified 25.8%) with improved operational and ambient stabilities, which is among the highest PCE of conventional PSCs. © 2024 Elsevier Inc.

AB - Crystallization orientation and the buried interface have been proven to be key factors determining the efficiency of perovskite solar cells (PSCs). Here, we report a facile strategy to concomitantly induce (100)-oriented perovskite and improve buried interface by incorporating a bifunctional ligand 2-(methylthio) ethylamine hydrochloride (METEAM) into perovskite precursor solution. METEAM molecules preferentially adsorb on (100) facets of perovskite via strong interactions with perovskite lattice to induce oriented perovskite crystallization. Meanwhile, METEAM molecules spontaneously aggregate at the buried interface and operate as a bridge between the perovskite and tin oxide (SnO2) electron transport layer to bidirectionally passivate their defects. As-prepared perovskite films exhibit suitable energy level and high mobility for interfacial charge transfer, low trap state density, and long carrier lifetime. The resultant conventional-structure PSC devices deliver a power conversion efficiency (PCE) of 26.1% (certified 25.8%) with improved operational and ambient stabilities, which is among the highest PCE of conventional PSCs. © 2024 Elsevier Inc.

KW - buried interface

KW - crystal orientation

KW - defects passivation

KW - ligand

KW - perovskite solar cells

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85203081176&origin=recordpage

U2 - 10.1016/j.joule.2024.07.009

DO - 10.1016/j.joule.2024.07.009

M3 - RGC 21 - Publication in refereed journal

SN - 2542-4351

VL - 8

SP - 3169

EP - 3185

JO - Joule

JF - Joule

IS - 11

ER -

Bifunctional ligand-induced preferred crystal orientation enables highly efficient perovskite solar cells

Abstract

Bibliographical note

Funding

UN SDGs

Research Keywords

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

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ITF: Development of Large-area Perovskite Films by Vapor Growth Methods for High-performance and Stable Photovoltaic Modules

ITF: Design and Fabrication of High-performance Flexible Perovskite/CIGS Tandem Solar Cell

GRF: Doubling Down: Combining Lead-Trapping Charge Extraction Layer and Cation Exchange Resins for Safe-to-Use Perovskite Solar Cells

Cite this

Bifunctional ligand-induced preferred crystal orientation enables highly efficient perovskite solar cells

Abstract

Bibliographical note

Funding

UN SDGs

Research Keywords

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Projects

ITF: Development of Large-area Perovskite Films by Vapor Growth Methods for High-performance and Stable Photovoltaic Modules

ITF: Design and Fabrication of High-performance Flexible Perovskite/CIGS Tandem Solar Cell

GRF: Doubling Down: Combining Lead-Trapping Charge Extraction Layer and Cation Exchange Resins for Safe-to-Use Perovskite Solar Cells

Cite this