Achieving High Moisture Tolerance in Pseudohalide Perovskite Nanocrystals for Light-Emitting Diode Application

Harshita Bhatia; Masoumeh Kashavarz; Cristina  Martin; Liam Van Gaal; Yiyue Zhang; Brend de Coen; Nadine J. Schrenker; Donato Valli; Martin Ottesen; Martin Bremholm; Joris Van de Vondel; Sara Bals; Johan Hofkens; Elke Debroye

doi:10.1021/acsaom.3c00096

Achieving High Moisture Tolerance in Pseudohalide Perovskite Nanocrystals for Light-Emitting Diode Application

Harshita Bhatia, Masoumeh Kashavarz, Cristina Martin, Liam Van Gaal, Yiyue Zhang, Brend de Coen, Nadine J. Schrenker, Donato Valli, Martin Ottesen, Martin Bremholm, Joris Van de Vondel, Sara Bals, Johan Hofkens, Elke Debroye^*

^*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

3 Citations (Scopus)

Abstract

The addition of potassium thiocyanate (KSCN) to the FAPbBr3 structure and subsequent post-treatment of nanocrystals (NCs) lead to high quantum confinement, resulting in a photoluminescent quantum yield (PLQY) approaching unity and microsecond decay times. This synergistic approach demonstrated exceptional stability under humid conditions, retaining 70% of the PLQY for over a month, while the untreated NCs degrade within 24 h. Additionally, the devices incorporating the post-treated NCs displayed 1.5% external quantum efficiency (EQE), a 5-fold improvement over untreated devices. These results provide promising opportunities for the use of perovskites in moisture-stable optoelectronics.

Original language	English
Journal	ACS Applied Optical Materials
Volume	1
Issue	6
Pages (from-to)	1184-1191
Number of pages	8
ISSN	2771-9855
DOIs	https://doi.org/10.1021/acsaom.3c00096
Publication status	Published - 23 Jun 2023

Keywords

Chemical structure
Diffraction
Lattice
Perovskites
Stability

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10.1021/acsaom.3c00096

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Bhatia, H., Kashavarz, M., Martin, C., Gaal, L. V., Zhang, Y., de Coen, B., Schrenker, N. J., Valli, D., Ottesen, M., Bremholm, M., Van de Vondel, J., Bals, S., Hofkens, J., & Debroye, E. (2023). Achieving High Moisture Tolerance in Pseudohalide Perovskite Nanocrystals for Light-Emitting Diode Application. ACS Applied Optical Materials, 1(6), 1184-1191. https://doi.org/10.1021/acsaom.3c00096

@article{23b3d95850ae41d2be41e58cf0e512b7,

title = "Achieving High Moisture Tolerance in Pseudohalide Perovskite Nanocrystals for Light-Emitting Diode Application",

abstract = "The addition of potassium thiocyanate (KSCN) to the FAPbBr3 structure and subsequent post-treatment of nanocrystals (NCs) lead to high quantum confinement, resulting in a photoluminescent quantum yield (PLQY) approaching unity and microsecond decay times. This synergistic approach demonstrated exceptional stability under humid conditions, retaining 70% of the PLQY for over a month, while the untreated NCs degrade within 24 h. Additionally, the devices incorporating the post-treated NCs displayed 1.5% external quantum efficiency (EQE), a 5-fold improvement over untreated devices. These results provide promising opportunities for the use of perovskites in moisture-stable optoelectronics.",

keywords = "Chemical structure, Diffraction, Lattice, Perovskites, Stability",

author = "Harshita Bhatia and Masoumeh Kashavarz and Cristina Martin and Gaal, {Liam Van} and Yiyue Zhang and {de Coen}, Brend and Schrenker, {Nadine J.} and Donato Valli and Martin Ottesen and Martin Bremholm and {Van de Vondel}, Joris and Sara Bals and Johan Hofkens and Elke Debroye",

year = "2023",

month = jun,

day = "23",

doi = "10.1021/acsaom.3c00096",

language = "English",

volume = "1",

pages = "1184--1191",

journal = "ACS Applied Optical Materials",

issn = "2771-9855",

publisher = "American Chemical Society",

number = "6",

}

Bhatia, H, Kashavarz, M, Martin, C, Gaal, LV, Zhang, Y, de Coen, B, Schrenker, NJ, Valli, D, Ottesen, M, Bremholm, M, Van de Vondel, J, Bals, S, Hofkens, J & Debroye, E 2023, 'Achieving High Moisture Tolerance in Pseudohalide Perovskite Nanocrystals for Light-Emitting Diode Application', ACS Applied Optical Materials, vol. 1, no. 6, pp. 1184-1191. https://doi.org/10.1021/acsaom.3c00096

Achieving High Moisture Tolerance in Pseudohalide Perovskite Nanocrystals for Light-Emitting Diode Application. / Bhatia, Harshita; Kashavarz, Masoumeh; Martin, Cristina et al.
In: ACS Applied Optical Materials, Vol. 1, No. 6, 23.06.2023, p. 1184-1191.

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

TY - JOUR

T1 - Achieving High Moisture Tolerance in Pseudohalide Perovskite Nanocrystals for Light-Emitting Diode Application

AU - Bhatia, Harshita

AU - Kashavarz, Masoumeh

AU - Martin, Cristina

AU - Gaal, Liam Van

AU - Zhang, Yiyue

AU - de Coen, Brend

AU - Schrenker, Nadine J.

AU - Valli, Donato

AU - Ottesen, Martin

AU - Bremholm, Martin

AU - Van de Vondel, Joris

AU - Bals, Sara

AU - Hofkens, Johan

AU - Debroye, Elke

PY - 2023/6/23

Y1 - 2023/6/23

N2 - The addition of potassium thiocyanate (KSCN) to the FAPbBr3 structure and subsequent post-treatment of nanocrystals (NCs) lead to high quantum confinement, resulting in a photoluminescent quantum yield (PLQY) approaching unity and microsecond decay times. This synergistic approach demonstrated exceptional stability under humid conditions, retaining 70% of the PLQY for over a month, while the untreated NCs degrade within 24 h. Additionally, the devices incorporating the post-treated NCs displayed 1.5% external quantum efficiency (EQE), a 5-fold improvement over untreated devices. These results provide promising opportunities for the use of perovskites in moisture-stable optoelectronics.

AB - The addition of potassium thiocyanate (KSCN) to the FAPbBr3 structure and subsequent post-treatment of nanocrystals (NCs) lead to high quantum confinement, resulting in a photoluminescent quantum yield (PLQY) approaching unity and microsecond decay times. This synergistic approach demonstrated exceptional stability under humid conditions, retaining 70% of the PLQY for over a month, while the untreated NCs degrade within 24 h. Additionally, the devices incorporating the post-treated NCs displayed 1.5% external quantum efficiency (EQE), a 5-fold improvement over untreated devices. These results provide promising opportunities for the use of perovskites in moisture-stable optoelectronics.

KW - Chemical structure

KW - Diffraction

KW - Lattice

KW - Perovskites

KW - Stability

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U2 - 10.1021/acsaom.3c00096

DO - 10.1021/acsaom.3c00096

M3 - Journal article

SN - 2771-9855

VL - 1

SP - 1184

EP - 1191

JO - ACS Applied Optical Materials

JF - ACS Applied Optical Materials

IS - 6

ER -

Achieving High Moisture Tolerance in Pseudohalide Perovskite Nanocrystals for Light-Emitting Diode Application

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