Complementary bulk and surface passivations for highly efficient perovskite solar cells by gas quenching

Shi Tang; Jueming Bing; Jianghui Zheng; Jianbo Tang; Yong Li; Mohannad Mayyas; Yongyoon Cho; Timothy W. Jones; Terry Chien Jen Yang; Lin Yuan; Mike Tebyetekerwa; Hieu T. Nguyen; Michael P. Nielsen; N. J. Ekins-Daukes; Kourosh Kalantar-Zadeh; Gregory J. Wilson; David R. McKenzie; Shujuan Huang; Anita W.Y. Ho-Baillie

doi:10.1016/j.xcrp.2021.100511

Complementary bulk and surface passivations for highly efficient perovskite solar cells by gas quenching

Shi Tang, Jueming Bing, Jianghui Zheng, Jianbo Tang, Yong Li, Mohannad Mayyas, Yongyoon Cho, Timothy W. Jones, Terry Chien Jen Yang, Lin Yuan, Mike Tebyetekerwa, Hieu T. Nguyen, Michael P. Nielsen, N. J. Ekins-Daukes, Kourosh Kalantar-Zadeh, Gregory J. Wilson, David R. McKenzie, Shujuan Huang, Anita W.Y. Ho-Baillie^*

^*Corresponding author for this work

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

29 Citations (Scopus)

Abstract

The power conversion efficiency (PCE) of metal halide perovskite solar cells (PSCs) has improved dramatically from 3.8% to 25.5% in only a decade. Gas quenching is a desirable method for fabricating high-efficiency cells as it does not consume antisolvents and is compatible with large-area deposition methods such as doctor blading and slot-die coating. To further improve PCEs for gas-quenched PSCs, here, we develop complementary bulk and surface passivation strategies by incorporating potassium iodide (KI) in the perovskite precursor and applying n-hexylammonium bromide (HABr) to the perovskite surface. We show that (1) KI induces a spatial-compositional change, improving grain boundary properties; (2) KI and HABr reduce traps, especially at levels close to the mid-gap; and (3) HABr greatly improves the built-in potential of the device, thereby improving voltage output. The champion device achieves a steady-state PCE of 23.6% with a V_OC of 1.23V, which is, to the best of our knowledge, the highest for PSC by gas quenching to date.

Original language	English
Article number	100511
Journal	Cell Reports Physical Science
Volume	2
Issue number	8
DOIs	https://doi.org/10.1016/j.xcrp.2021.100511
Publication status	Published - 18 Aug 2021

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Tang, S., Bing, J., Zheng, J., Tang, J., Li, Y., Mayyas, M., Cho, Y., Jones, T. W., Yang, T. C. J., Yuan, L., Tebyetekerwa, M., Nguyen, H. T., Nielsen, M. P., Ekins-Daukes, N. J., Kalantar-Zadeh, K., Wilson, G. J., McKenzie, D. R., Huang, S., & Ho-Baillie, A. W. Y. (2021). Complementary bulk and surface passivations for highly efficient perovskite solar cells by gas quenching. Cell Reports Physical Science, 2(8), Article 100511. https://doi.org/10.1016/j.xcrp.2021.100511

@article{d8d0e4fac1e8425791d6e8e189fc783e,

title = "Complementary bulk and surface passivations for highly efficient perovskite solar cells by gas quenching",

abstract = "The power conversion efficiency (PCE) of metal halide perovskite solar cells (PSCs) has improved dramatically from 3.8% to 25.5% in only a decade. Gas quenching is a desirable method for fabricating high-efficiency cells as it does not consume antisolvents and is compatible with large-area deposition methods such as doctor blading and slot-die coating. To further improve PCEs for gas-quenched PSCs, here, we develop complementary bulk and surface passivation strategies by incorporating potassium iodide (KI) in the perovskite precursor and applying n-hexylammonium bromide (HABr) to the perovskite surface. We show that (1) KI induces a spatial-compositional change, improving grain boundary properties; (2) KI and HABr reduce traps, especially at levels close to the mid-gap; and (3) HABr greatly improves the built-in potential of the device, thereby improving voltage output. The champion device achieves a steady-state PCE of 23.6% with a VOC of 1.23V, which is, to the best of our knowledge, the highest for PSC by gas quenching to date.",

keywords = "compositional change, defect passivation, gas quenching, perovskite solar cell",

author = "Shi Tang and Jueming Bing and Jianghui Zheng and Jianbo Tang and Yong Li and Mohannad Mayyas and Yongyoon Cho and Jones, {Timothy W.} and Yang, {Terry Chien Jen} and Lin Yuan and Mike Tebyetekerwa and Nguyen, {Hieu T.} and Nielsen, {Michael P.} and Ekins-Daukes, {N. J.} and Kourosh Kalantar-Zadeh and Wilson, {Gregory J.} and McKenzie, {David R.} and Shujuan Huang and Ho-Baillie, {Anita W.Y.}",

note = "Publisher Copyright: {\textcopyright} 2021 The Author(s)",

year = "2021",

month = aug,

day = "18",

doi = "10.1016/j.xcrp.2021.100511",

language = "English",

volume = "2",

journal = "Cell Reports Physical Science",

issn = "2666-3864",

publisher = "Cell Press",

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Tang, S, Bing, J, Zheng, J, Tang, J, Li, Y, Mayyas, M, Cho, Y, Jones, TW, Yang, TCJ, Yuan, L, Tebyetekerwa, M, Nguyen, HT, Nielsen, MP, Ekins-Daukes, NJ, Kalantar-Zadeh, K, Wilson, GJ, McKenzie, DR, Huang, S & Ho-Baillie, AWY 2021, 'Complementary bulk and surface passivations for highly efficient perovskite solar cells by gas quenching', Cell Reports Physical Science, vol. 2, no. 8, 100511. https://doi.org/10.1016/j.xcrp.2021.100511

TY - JOUR

T1 - Complementary bulk and surface passivations for highly efficient perovskite solar cells by gas quenching

AU - Tang, Shi

AU - Bing, Jueming

AU - Zheng, Jianghui

AU - Tang, Jianbo

AU - Li, Yong

AU - Mayyas, Mohannad

AU - Cho, Yongyoon

AU - Jones, Timothy W.

AU - Yang, Terry Chien Jen

AU - Yuan, Lin

AU - Tebyetekerwa, Mike

AU - Nguyen, Hieu T.

AU - Nielsen, Michael P.

AU - Ekins-Daukes, N. J.

AU - Kalantar-Zadeh, Kourosh

AU - Wilson, Gregory J.

AU - McKenzie, David R.

AU - Huang, Shujuan

AU - Ho-Baillie, Anita W.Y.

PY - 2021/8/18

Y1 - 2021/8/18

N2 - The power conversion efficiency (PCE) of metal halide perovskite solar cells (PSCs) has improved dramatically from 3.8% to 25.5% in only a decade. Gas quenching is a desirable method for fabricating high-efficiency cells as it does not consume antisolvents and is compatible with large-area deposition methods such as doctor blading and slot-die coating. To further improve PCEs for gas-quenched PSCs, here, we develop complementary bulk and surface passivation strategies by incorporating potassium iodide (KI) in the perovskite precursor and applying n-hexylammonium bromide (HABr) to the perovskite surface. We show that (1) KI induces a spatial-compositional change, improving grain boundary properties; (2) KI and HABr reduce traps, especially at levels close to the mid-gap; and (3) HABr greatly improves the built-in potential of the device, thereby improving voltage output. The champion device achieves a steady-state PCE of 23.6% with a VOC of 1.23V, which is, to the best of our knowledge, the highest for PSC by gas quenching to date.

AB - The power conversion efficiency (PCE) of metal halide perovskite solar cells (PSCs) has improved dramatically from 3.8% to 25.5% in only a decade. Gas quenching is a desirable method for fabricating high-efficiency cells as it does not consume antisolvents and is compatible with large-area deposition methods such as doctor blading and slot-die coating. To further improve PCEs for gas-quenched PSCs, here, we develop complementary bulk and surface passivation strategies by incorporating potassium iodide (KI) in the perovskite precursor and applying n-hexylammonium bromide (HABr) to the perovskite surface. We show that (1) KI induces a spatial-compositional change, improving grain boundary properties; (2) KI and HABr reduce traps, especially at levels close to the mid-gap; and (3) HABr greatly improves the built-in potential of the device, thereby improving voltage output. The champion device achieves a steady-state PCE of 23.6% with a VOC of 1.23V, which is, to the best of our knowledge, the highest for PSC by gas quenching to date.

KW - compositional change

KW - defect passivation

KW - gas quenching

KW - perovskite solar cell

UR - http://www.scopus.com/inward/record.url?scp=85112211398&partnerID=8YFLogxK

U2 - 10.1016/j.xcrp.2021.100511

DO - 10.1016/j.xcrp.2021.100511

M3 - Article

SN - 2666-3864

VL - 2

JO - Cell Reports Physical Science

JF - Cell Reports Physical Science

IS - 8

M1 - 100511

ER -

Complementary bulk and surface passivations for highly efficient perovskite solar cells by gas quenching

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