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20.8% Slot-Die Coated MAPbI3 Perovskite Solar Cells by Optimal DMSO-Content and Age of 2-ME Based Precursor Inks

Li, Jinzhao ; Dagar, Janardan ; Shargaieva, Oleksandra ; Flatken, Marion A. ; Köbler, Hans ; Fenske, Markus ; Schultz, Christof ; Stegemann, Bert ; Just, Justus LU and Többens, Daniel M. , et al. (2021) In Advanced Energy Materials 11(10).
Abstract

Solar cells incorporating metal-halide perovskite (MHP) semiconductors are continuing to break efficiency records for solution-processed solar cell devices. Scaling MHP-based devices to larger area prototypes requires the development and optimization of scalable process technology and ink formulations that enable reproducible coating results. It is demonstrated that the power conversion efficiency (PCE) of small-area methylammonium lead iodide (MAPbI3) devices, slot-die coated from a 2-methoxy-ethanol (2-ME) based ink with dimethyl-sulfoxide (DMSO) used as an additive depends on the amount of DMSO and age of the ink formulation. When adding 12 mol% of DMSO, small-area devices of high performance (20.8%) are achieved. The... (More)

Solar cells incorporating metal-halide perovskite (MHP) semiconductors are continuing to break efficiency records for solution-processed solar cell devices. Scaling MHP-based devices to larger area prototypes requires the development and optimization of scalable process technology and ink formulations that enable reproducible coating results. It is demonstrated that the power conversion efficiency (PCE) of small-area methylammonium lead iodide (MAPbI3) devices, slot-die coated from a 2-methoxy-ethanol (2-ME) based ink with dimethyl-sulfoxide (DMSO) used as an additive depends on the amount of DMSO and age of the ink formulation. When adding 12 mol% of DMSO, small-area devices of high performance (20.8%) are achieved. The effect of DMSO content and age on the thin film morphology and device performance through in situ X-ray diffraction and small-angle X-ray scattering experiments is rationalized. Adding a limited amount of DMSO prevents the formation of a crystalline intermediate phase related to MAPbI3 and 2-ME (MAPbI3-2-ME) and induces the formation of the MAPbI3 perovskite phase. Higher DMSO content leads to the precipitation of the (DMSO)2MA2Pb3I8 intermediate phase that negatively affects the thin-film morphology. These results demonstrate that rational insights into the ink composition and process control are critical to enable reproducible large-scale manufacturing of MHP-based devices for commercial applications.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
ink age, perovskite solar cells, SAXS, WAXS, slot-die coating
in
Advanced Energy Materials
volume
11
issue
10
article number
2003460
publisher
Wiley-Blackwell
external identifiers
  • scopus:85099990407
ISSN
1614-6832
DOI
10.1002/aenm.202003460
language
English
LU publication?
yes
id
0e6fc037-b41d-49ff-b141-75a461ef8030
date added to LUP
2021-02-08 12:49:07
date last changed
2023-11-20 22:36:22
@article{0e6fc037-b41d-49ff-b141-75a461ef8030,
  abstract     = {{<p>Solar cells incorporating metal-halide perovskite (MHP) semiconductors are continuing to break efficiency records for solution-processed solar cell devices. Scaling MHP-based devices to larger area prototypes requires the development and optimization of scalable process technology and ink formulations that enable reproducible coating results. It is demonstrated that the power conversion efficiency (PCE) of small-area methylammonium lead iodide (MAPbI<sub>3</sub>) devices, slot-die coated from a 2-methoxy-ethanol (2-ME) based ink with dimethyl-sulfoxide (DMSO) used as an additive depends on the amount of DMSO and age of the ink formulation. When adding 12 mol% of DMSO, small-area devices of high performance (20.8%) are achieved. The effect of DMSO content and age on the thin film morphology and device performance through in situ X-ray diffraction and small-angle X-ray scattering experiments is rationalized. Adding a limited amount of DMSO prevents the formation of a crystalline intermediate phase related to MAPbI<sub>3</sub> and 2-ME (MAPbI<sub>3</sub>-2-ME) and induces the formation of the MAPbI<sub>3</sub> perovskite phase. Higher DMSO content leads to the precipitation of the (DMSO)<sub>2</sub>MA<sub>2</sub>Pb<sub>3</sub>I<sub>8</sub> intermediate phase that negatively affects the thin-film morphology. These results demonstrate that rational insights into the ink composition and process control are critical to enable reproducible large-scale manufacturing of MHP-based devices for commercial applications.</p>}},
  author       = {{Li, Jinzhao and Dagar, Janardan and Shargaieva, Oleksandra and Flatken, Marion A. and Köbler, Hans and Fenske, Markus and Schultz, Christof and Stegemann, Bert and Just, Justus and Többens, Daniel M. and Abate, Antonio and Munir, Rahim and Unger, Eva}},
  issn         = {{1614-6832}},
  keywords     = {{ink age; perovskite solar cells; SAXS, WAXS; slot-die coating}},
  language     = {{eng}},
  month        = {{01}},
  number       = {{10}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Advanced Energy Materials}},
  title        = {{20.8% Slot-Die Coated MAPbI<sub>3</sub> Perovskite Solar Cells by Optimal DMSO-Content and Age of 2-ME Based Precursor Inks}},
  url          = {{http://dx.doi.org/10.1002/aenm.202003460}},
  doi          = {{10.1002/aenm.202003460}},
  volume       = {{11}},
  year         = {{2021}},
}