Managing grains and interfaces via ligand anchoring enables 22.3%-efficiency inverted perovskite solar cells

Xiaopeng Zheng; Yi Hou; Chunxiong Bao; Jun Yin; Fanglong Yuan; Ziru Huang; Kepeng Song; Jiakai Liu; Joel Troughton; Nicola Gasparini; Chun Zhou; Yuanbao Lin; Ding-Jiang Xue; Bin Chen; Andrew K. Johnston; Nini Wei; Mohamed N. Hedhili; Mingyang Wei; Abdullah Yousef Alsalloum; Partha Maity; Bekir Turedi; Chen Yang; Derya Baran; Thomas D. Anthopoulos; Yu Han; Zheng-Hong Lu; Omar F. Mohammed; Feng Gao; E. Sargent; Osman Bakr

doi:10.1038/s41560-019-0538-4

Managing grains and interfaces via ligand anchoring enables 22.3%-efficiency inverted perovskite solar cells

Xiaopeng Zheng, Yi Hou, Chunxiong Bao, Jun Yin, Fanglong Yuan, Ziru Huang, Kepeng Song, Jiakai Liu, Joel Troughton, Nicola Gasparini, Chun Zhou, Yuanbao Lin, Ding-Jiang Xue, Bin Chen, Andrew K. Johnston, Nini Wei, Mohamed N. Hedhili, Mingyang Wei, Abdullah Yousef Alsalloum, Partha MaityBekir Turedi, Chen Yang, Derya Baran, Thomas D. Anthopoulos, Yu Han, Zheng-Hong Lu, Omar F. Mohammed, Feng Gao, E. Sargent, Osman Bakr

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Abstract

Inverted perovskite solar cells have attracted increasing attention because they have achieved long operating lifetimes. However, they have exhibited significantly inferior power conversion efficiencies compared to regular perovskite solar cells. Here we reduce this efficiency gap using a trace amount of surface-anchoring alkylamine ligands (AALs) with different chain lengths as grain and interface modifiers. We show that long-chain AALs added to the precursor solution suppress nonradiative carrier recombination and improve the optoelectronic properties of mixed-cation mixed-halide perovskite films. The resulting AALs surface-modified films exhibit a prominent (100) orientation and lower trap-state density as well as enhanced carrier mobilities and diffusion lengths. These translate into a certified stabilized power conversion efficiency of 22.3% (23.0% power conversion efficiency for lab-measured champion devices). The devices operate for over 1,000h at the maximum power point under simulated AM1.5 illumination, without loss of efficiency.

Original language	English (US)
Journal	Nature Energy
DOIs	https://doi.org/10.1038/s41560-019-0538-4
State	Published - Jan 20 2020

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Zheng, X., Hou, Y., Bao, C., Yin, J., Yuan, F., Huang, Z., Song, K., Liu, J., Troughton, J., Gasparini, N., Zhou, C., Lin, Y., Xue, D.-J., Chen, B., Johnston, A. K., Wei, N., Hedhili, M. N., Wei, M., Alsalloum, A. Y., ... Bakr, O. (2020). Managing grains and interfaces via ligand anchoring enables 22.3%-efficiency inverted perovskite solar cells. Nature Energy. https://doi.org/10.1038/s41560-019-0538-4

@article{5303553a06a34e09ae1c3a51f8684957,

title = "Managing grains and interfaces via ligand anchoring enables 22.3%-efficiency inverted perovskite solar cells",

abstract = "Inverted perovskite solar cells have attracted increasing attention because they have achieved long operating lifetimes. However, they have exhibited significantly inferior power conversion efficiencies compared to regular perovskite solar cells. Here we reduce this efficiency gap using a trace amount of surface-anchoring alkylamine ligands (AALs) with different chain lengths as grain and interface modifiers. We show that long-chain AALs added to the precursor solution suppress nonradiative carrier recombination and improve the optoelectronic properties of mixed-cation mixed-halide perovskite films. The resulting AALs surface-modified films exhibit a prominent (100) orientation and lower trap-state density as well as enhanced carrier mobilities and diffusion lengths. These translate into a certified stabilized power conversion efficiency of 22.3% (23.0% power conversion efficiency for lab-measured champion devices). The devices operate for over 1,000h at the maximum power point under simulated AM1.5 illumination, without loss of efficiency.",

author = "Xiaopeng Zheng and Yi Hou and Chunxiong Bao and Jun Yin and Fanglong Yuan and Ziru Huang and Kepeng Song and Jiakai Liu and Joel Troughton and Nicola Gasparini and Chun Zhou and Yuanbao Lin and Ding-Jiang Xue and Bin Chen and Johnston, {Andrew K.} and Nini Wei and Hedhili, {Mohamed N.} and Mingyang Wei and Alsalloum, {Abdullah Yousef} and Partha Maity and Bekir Turedi and Chen Yang and Derya Baran and Anthopoulos, {Thomas D.} and Yu Han and Zheng-Hong Lu and Mohammed, {Omar F.} and Feng Gao and E. Sargent and Osman Bakr",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): OSR-2017-CRG-3380 Acknowledgements: We acknowledge the use of KAUST Core Lab and KAUST Solar Center facilities. This work was supported by KAUST and the Office of Sponsored Research (OSR) under award no. OSR-2017-CRG-3380. F.G. is a Wallenberg Academy Fellow.",

year = "2020",

month = jan,

day = "20",

doi = "10.1038/s41560-019-0538-4",

language = "English (US)",

journal = "Nature Energy",

issn = "2058-7546",

publisher = "Nature Publishing Group",

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Zheng, X, Hou, Y, Bao, C, Yin, J, Yuan, F, Huang, Z, Song, K, Liu, J, Troughton, J, Gasparini, N, Zhou, C, Lin, Y, Xue, D-J, Chen, B, Johnston, AK, Wei, N, Hedhili, MN, Wei, M, Alsalloum, AY, Maity, P, Turedi, B, Yang, C, Baran, D, Anthopoulos, TD, Han, Y, Lu, Z-H, Mohammed, OF, Gao, F, Sargent, E & Bakr, O 2020, 'Managing grains and interfaces via ligand anchoring enables 22.3%-efficiency inverted perovskite solar cells', Nature Energy. https://doi.org/10.1038/s41560-019-0538-4

TY - JOUR

T1 - Managing grains and interfaces via ligand anchoring enables 22.3%-efficiency inverted perovskite solar cells

AU - Zheng, Xiaopeng

AU - Hou, Yi

AU - Bao, Chunxiong

AU - Yin, Jun

AU - Yuan, Fanglong

AU - Huang, Ziru

AU - Song, Kepeng

AU - Liu, Jiakai

AU - Troughton, Joel

AU - Gasparini, Nicola

AU - Zhou, Chun

AU - Lin, Yuanbao

AU - Xue, Ding-Jiang

AU - Chen, Bin

AU - Johnston, Andrew K.

AU - Wei, Nini

AU - Hedhili, Mohamed N.

AU - Wei, Mingyang

AU - Alsalloum, Abdullah Yousef

AU - Maity, Partha

AU - Turedi, Bekir

AU - Yang, Chen

AU - Baran, Derya

AU - Anthopoulos, Thomas D.

AU - Han, Yu

AU - Lu, Zheng-Hong

AU - Mohammed, Omar F.

AU - Gao, Feng

AU - Sargent, E.

AU - Bakr, Osman

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledged KAUST grant number(s): OSR-2017-CRG-3380 Acknowledgements: We acknowledge the use of KAUST Core Lab and KAUST Solar Center facilities. This work was supported by KAUST and the Office of Sponsored Research (OSR) under award no. OSR-2017-CRG-3380. F.G. is a Wallenberg Academy Fellow.

PY - 2020/1/20

Y1 - 2020/1/20

N2 - Inverted perovskite solar cells have attracted increasing attention because they have achieved long operating lifetimes. However, they have exhibited significantly inferior power conversion efficiencies compared to regular perovskite solar cells. Here we reduce this efficiency gap using a trace amount of surface-anchoring alkylamine ligands (AALs) with different chain lengths as grain and interface modifiers. We show that long-chain AALs added to the precursor solution suppress nonradiative carrier recombination and improve the optoelectronic properties of mixed-cation mixed-halide perovskite films. The resulting AALs surface-modified films exhibit a prominent (100) orientation and lower trap-state density as well as enhanced carrier mobilities and diffusion lengths. These translate into a certified stabilized power conversion efficiency of 22.3% (23.0% power conversion efficiency for lab-measured champion devices). The devices operate for over 1,000h at the maximum power point under simulated AM1.5 illumination, without loss of efficiency.

AB - Inverted perovskite solar cells have attracted increasing attention because they have achieved long operating lifetimes. However, they have exhibited significantly inferior power conversion efficiencies compared to regular perovskite solar cells. Here we reduce this efficiency gap using a trace amount of surface-anchoring alkylamine ligands (AALs) with different chain lengths as grain and interface modifiers. We show that long-chain AALs added to the precursor solution suppress nonradiative carrier recombination and improve the optoelectronic properties of mixed-cation mixed-halide perovskite films. The resulting AALs surface-modified films exhibit a prominent (100) orientation and lower trap-state density as well as enhanced carrier mobilities and diffusion lengths. These translate into a certified stabilized power conversion efficiency of 22.3% (23.0% power conversion efficiency for lab-measured champion devices). The devices operate for over 1,000h at the maximum power point under simulated AM1.5 illumination, without loss of efficiency.

UR - http://hdl.handle.net/10754/661110

UR - http://www.nature.com/articles/s41560-019-0538-4

UR - http://www.scopus.com/inward/record.url?scp=85078249073&partnerID=8YFLogxK

U2 - 10.1038/s41560-019-0538-4

DO - 10.1038/s41560-019-0538-4

M3 - Article

SN - 2058-7546

JO - Nature Energy

JF - Nature Energy

ER -

Managing grains and interfaces via ligand anchoring enables 22.3%-efficiency inverted perovskite solar cells

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