Foldable Hole-Transporting Materials for Merging Electronic States between Defective and Perfect Perovskite Sites

Jianxing Xia; Povilas Luizys; Maryte Daskeviciene; Chuanxiao Xiao; Kristina Kantminiene; Vygintas Jankauskas; Kasparas Rakstys; Gediminas Kreiza; Xiao-Xin Gao; Hiroyuki Kanda; Keith Gregory Brooks; Imanah Rafieh Alwani; Qurat Ul Ain; Jihua Zou; Guang Shao; Ruiyuan Hu; Zeliang Qiu; Andre Slonopas; Abdullah M. Asiri; Yi Zhang; Paul J. Dyson; Vytautas Getautis; Mohammad Khaja Nazeeruddin

doi:10.1002/adma.202300720

Foldable Hole-Transporting Materials for Merging Electronic States between Defective and Perfect Perovskite Sites

Jianxing Xia, Povilas Luizys, Maryte Daskeviciene, Chuanxiao Xiao, Kristina Kantminiene, Vygintas Jankauskas, Kasparas Rakstys, Gediminas Kreiza, Xiao-Xin Gao, Hiroyuki Kanda, Keith Gregory Brooks, Imanah Rafieh Alwani, Qurat Ul Ain, Jihua Zou, Guang Shao, Ruiyuan Hu, Zeliang Qiu, Andre Slonopas, Abdullah M. Asiri, Yi Zhang^*Paul J. Dyson^*, Vytautas Getautis^*, Mohammad Khaja Nazeeruddin^*

^*Corresponding author for this work

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

27 Citations (Scopus)

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Abstract

Defective and perfect sites naturally exist within electronic semiconductors, and considerable efforts to reduce defects to improve the performance of electronic devices, especially in hybrid organic–inorganic perovskites (ABX₃), are undertaken. Herein, foldable hole-transporting materials (HTMs) are developed, and they extend the wavefunctions of A-site cations of perovskite, which, as hybridized electronic states, link the trap states (defective site) and valence band edge (perfect site) between the naturally defective and perfect sites of the perovskite surface, finally converting the discrete trap states of the perovskite as the continuous valence band to reduce trap recombination. Tailoring the foldability of the HTMs tunes the wavefunctions between defective and perfect surface sites, allowing the power conversion efficiency of a small cell to reach 23.22% and that of a mini-module (6.5 × 7 cm, active area = 30.24 cm²) to reach as high as 21.71% with a fill factor of 81%, the highest value reported for non-spiro-OMeTAD-based perovskite solar modules. © 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.

Original language	English
Article number	2300720
Journal	Advanced Materials
Volume	35
Issue number	26
Online published	29 Apr 2023
DOIs	https://doi.org/10.1002/adma.202300720
Publication status	Published - 22 Jun 2023
Externally published	Yes

Research Keywords

hole mobility
hole-transporting materials
perovskite solar cells
photovoltaics
trap states

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This full text is made available under CC-BY-NC 4.0. https://creativecommons.org/licenses/by-nc/4.0/

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Xia, J., Luizys, P., Daskeviciene, M., Xiao, C., Kantminiene, K., Jankauskas, V., Rakstys, K., Kreiza, G., Gao, X.-X., Kanda, H., Brooks, K. G., Alwani, I. R., Ain, Q. U., Zou, J., Shao, G., Hu, R., Qiu, Z., Slonopas, A., Asiri, A. M., ... Nazeeruddin, M. K. (2023). Foldable Hole-Transporting Materials for Merging Electronic States between Defective and Perfect Perovskite Sites. Advanced Materials, 35(26), Article 2300720. https://doi.org/10.1002/adma.202300720

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title = "Foldable Hole-Transporting Materials for Merging Electronic States between Defective and Perfect Perovskite Sites",

abstract = "Defective and perfect sites naturally exist within electronic semiconductors, and considerable efforts to reduce defects to improve the performance of electronic devices, especially in hybrid organic–inorganic perovskites (ABX3), are undertaken. Herein, foldable hole-transporting materials (HTMs) are developed, and they extend the wavefunctions of A-site cations of perovskite, which, as hybridized electronic states, link the trap states (defective site) and valence band edge (perfect site) between the naturally defective and perfect sites of the perovskite surface, finally converting the discrete trap states of the perovskite as the continuous valence band to reduce trap recombination. Tailoring the foldability of the HTMs tunes the wavefunctions between defective and perfect surface sites, allowing the power conversion efficiency of a small cell to reach 23.22% and that of a mini-module (6.5 × 7 cm, active area = 30.24 cm2) to reach as high as 21.71% with a fill factor of 81%, the highest value reported for non-spiro-OMeTAD-based perovskite solar modules. {\textcopyright} 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.",

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author = "Jianxing Xia and Povilas Luizys and Maryte Daskeviciene and Chuanxiao Xiao and Kristina Kantminiene and Vygintas Jankauskas and Kasparas Rakstys and Gediminas Kreiza and Xiao-Xin Gao and Hiroyuki Kanda and Brooks, {Keith Gregory} and Alwani, {Imanah Rafieh} and Ain, {Qurat Ul} and Jihua Zou and Guang Shao and Ruiyuan Hu and Zeliang Qiu and Andre Slonopas and Asiri, {Abdullah M.} and Yi Zhang and Dyson, {Paul J.} and Vytautas Getautis and Nazeeruddin, {Mohammad Khaja}",

year = "2023",

month = jun,

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language = "English",

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Xia, J, Luizys, P, Daskeviciene, M, Xiao, C, Kantminiene, K, Jankauskas, V, Rakstys, K, Kreiza, G, Gao, X-X, Kanda, H, Brooks, KG, Alwani, IR, Ain, QU, Zou, J, Shao, G, Hu, R, Qiu, Z, Slonopas, A, Asiri, AM, Zhang, Y, Dyson, PJ, Getautis, V & Nazeeruddin, MK 2023, 'Foldable Hole-Transporting Materials for Merging Electronic States between Defective and Perfect Perovskite Sites', Advanced Materials, vol. 35, no. 26, 2300720. https://doi.org/10.1002/adma.202300720

TY - JOUR

T1 - Foldable Hole-Transporting Materials for Merging Electronic States between Defective and Perfect Perovskite Sites

AU - Xia, Jianxing

AU - Luizys, Povilas

AU - Daskeviciene, Maryte

AU - Xiao, Chuanxiao

AU - Kantminiene, Kristina

AU - Jankauskas, Vygintas

AU - Rakstys, Kasparas

AU - Kreiza, Gediminas

AU - Gao, Xiao-Xin

AU - Kanda, Hiroyuki

AU - Brooks, Keith Gregory

AU - Alwani, Imanah Rafieh

AU - Ain, Qurat Ul

AU - Zou, Jihua

AU - Shao, Guang

AU - Hu, Ruiyuan

AU - Qiu, Zeliang

AU - Slonopas, Andre

AU - Asiri, Abdullah M.

AU - Zhang, Yi

AU - Dyson, Paul J.

AU - Getautis, Vytautas

AU - Nazeeruddin, Mohammad Khaja

PY - 2023/6/22

Y1 - 2023/6/22

N2 - Defective and perfect sites naturally exist within electronic semiconductors, and considerable efforts to reduce defects to improve the performance of electronic devices, especially in hybrid organic–inorganic perovskites (ABX3), are undertaken. Herein, foldable hole-transporting materials (HTMs) are developed, and they extend the wavefunctions of A-site cations of perovskite, which, as hybridized electronic states, link the trap states (defective site) and valence band edge (perfect site) between the naturally defective and perfect sites of the perovskite surface, finally converting the discrete trap states of the perovskite as the continuous valence band to reduce trap recombination. Tailoring the foldability of the HTMs tunes the wavefunctions between defective and perfect surface sites, allowing the power conversion efficiency of a small cell to reach 23.22% and that of a mini-module (6.5 × 7 cm, active area = 30.24 cm2) to reach as high as 21.71% with a fill factor of 81%, the highest value reported for non-spiro-OMeTAD-based perovskite solar modules. © 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.

AB - Defective and perfect sites naturally exist within electronic semiconductors, and considerable efforts to reduce defects to improve the performance of electronic devices, especially in hybrid organic–inorganic perovskites (ABX3), are undertaken. Herein, foldable hole-transporting materials (HTMs) are developed, and they extend the wavefunctions of A-site cations of perovskite, which, as hybridized electronic states, link the trap states (defective site) and valence band edge (perfect site) between the naturally defective and perfect sites of the perovskite surface, finally converting the discrete trap states of the perovskite as the continuous valence band to reduce trap recombination. Tailoring the foldability of the HTMs tunes the wavefunctions between defective and perfect surface sites, allowing the power conversion efficiency of a small cell to reach 23.22% and that of a mini-module (6.5 × 7 cm, active area = 30.24 cm2) to reach as high as 21.71% with a fill factor of 81%, the highest value reported for non-spiro-OMeTAD-based perovskite solar modules. © 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.

KW - hole mobility

KW - hole-transporting materials

KW - perovskite solar cells

KW - photovoltaics

KW - trap states

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U2 - 10.1002/adma.202300720

DO - 10.1002/adma.202300720

M3 - RGC 21 - Publication in refereed journal

SN - 0935-9648

VL - 35

JO - Advanced Materials

JF - Advanced Materials

IS - 26

M1 - 2300720

ER -

Foldable Hole-Transporting Materials for Merging Electronic States between Defective and Perfect Perovskite Sites

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Research Keywords

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