Thermal Properties of Polymer Hole-Transport Layers Influence the Efficiency Roll-Off and Stability of Perovskite Light-Emitting Diodes

Lianfeng Zhao; Daniel Astridge; William Gunnarsson; Zhaojian Xu; Jisu Hong; Jonathan Scott; Sara Kacmoli; Khaled Al Kurdi; Stephen Barlow; Seth Marder; Claire Gmachl; Alan Sellinger; Barry Rand

doi:10.1021/acs.nanolett.3c00148

Thermal Properties of Polymer Hole-Transport Layers Influence the Efficiency Roll-Off and Stability of Perovskite Light-Emitting Diodes

Lianfeng Zhao
, Daniel Astridge
, William Gunnarsson
, Zhaojian Xu
, Jisu Hong
, Jonathan Scott
, Sara Kacmoli
, Khaled Al Kurdi
, Stephen Barlow
, Seth Marder
, Claire Gmachl
, Alan Sellinger
, Barry Rand

Chemistry and Nanoscience

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

24 Scopus Citations

Abstract

While the performance of metal halide perovskite light-emitting diodes (PeLEDs) has rapidly improved in recent years, their stability remains a bottleneck to commercial realization. Here, we show that the thermal stability of polymer hole-transport layers (HTLs) used in PeLEDs represents an important factor influencing the external quantum efficiency (EQE) roll-off and device lifetime. We demonstrate a reduced EQE roll-off, a higher breakdown current density of approximately 6 A cm-2, a maximum radiance of 760 W sr-1 m-2, and a longer device lifetime for PeLEDs using polymer HTLs with high glass-transition temperatures. Furthermore, for devices driven by nanosecond electrical pulses, a record high radiance of 1.23 MW sr-1 m-2 and an EQE of approximately 1.92% at 14.6 kA cm-2 are achieved. Thermally stable polymer HTLs enable stable operation of PeLEDs that can sustain more than 11.7 million electrical pulses at 1 kA cm-2 before device failure.

Original language	American English
Pages (from-to)	4785-4792
Number of pages	8
Journal	Nano Letters
Volume	23
Issue number	11
DOIs	https://doi.org/10.1021/acs.nanolett.3c00148
State	Published - 2023

NLR Publication Number

NREL/JA-5900-86598

Keywords

device stability
EQE roll-off
high power
perovskite light-emitting devices
pulsed operation

Access to Document

10.1021/acs.nanolett.3c00148

Cite this

Zhao, L., Astridge, D., Gunnarsson, W., Xu, Z., Hong, J., Scott, J., Kacmoli, S., Al Kurdi, K., Barlow, S., Marder, S., Gmachl, C., Sellinger, A., & Rand, B. (2023). Thermal Properties of Polymer Hole-Transport Layers Influence the Efficiency Roll-Off and Stability of Perovskite Light-Emitting Diodes. Nano Letters, 23(11), 4785-4792. https://doi.org/10.1021/acs.nanolett.3c00148

@article{a647a87ed69a46ff86261ed44dd86455,

title = "Thermal Properties of Polymer Hole-Transport Layers Influence the Efficiency Roll-Off and Stability of Perovskite Light-Emitting Diodes",

abstract = "While the performance of metal halide perovskite light-emitting diodes (PeLEDs) has rapidly improved in recent years, their stability remains a bottleneck to commercial realization. Here, we show that the thermal stability of polymer hole-transport layers (HTLs) used in PeLEDs represents an important factor influencing the external quantum efficiency (EQE) roll-off and device lifetime. We demonstrate a reduced EQE roll-off, a higher breakdown current density of approximately 6 A cm-2, a maximum radiance of 760 W sr-1 m-2, and a longer device lifetime for PeLEDs using polymer HTLs with high glass-transition temperatures. Furthermore, for devices driven by nanosecond electrical pulses, a record high radiance of 1.23 MW sr-1 m-2 and an EQE of approximately 1.92\% at 14.6 kA cm-2 are achieved. Thermally stable polymer HTLs enable stable operation of PeLEDs that can sustain more than 11.7 million electrical pulses at 1 kA cm-2 before device failure.",

keywords = "device stability, EQE roll-off, high power, perovskite light-emitting devices, pulsed operation",

author = "Lianfeng Zhao and Daniel Astridge and William Gunnarsson and Zhaojian Xu and Jisu Hong and Jonathan Scott and Sara Kacmoli and \{Al Kurdi\}, Khaled and Stephen Barlow and Seth Marder and Claire Gmachl and Alan Sellinger and Barry Rand",

year = "2023",

doi = "10.1021/acs.nanolett.3c00148",

language = "American English",

volume = "23",

pages = "4785--4792",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "11",

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Zhao, L, Astridge, D, Gunnarsson, W, Xu, Z, Hong, J, Scott, J, Kacmoli, S, Al Kurdi, K, Barlow, S, Marder, S, Gmachl, C, Sellinger, A & Rand, B 2023, 'Thermal Properties of Polymer Hole-Transport Layers Influence the Efficiency Roll-Off and Stability of Perovskite Light-Emitting Diodes', Nano Letters, vol. 23, no. 11, pp. 4785-4792. https://doi.org/10.1021/acs.nanolett.3c00148

TY - JOUR

T1 - Thermal Properties of Polymer Hole-Transport Layers Influence the Efficiency Roll-Off and Stability of Perovskite Light-Emitting Diodes

AU - Zhao, Lianfeng

AU - Astridge, Daniel

AU - Gunnarsson, William

AU - Xu, Zhaojian

AU - Hong, Jisu

AU - Scott, Jonathan

AU - Kacmoli, Sara

AU - Al Kurdi, Khaled

AU - Barlow, Stephen

AU - Marder, Seth

AU - Gmachl, Claire

AU - Sellinger, Alan

AU - Rand, Barry

PY - 2023

Y1 - 2023

N2 - While the performance of metal halide perovskite light-emitting diodes (PeLEDs) has rapidly improved in recent years, their stability remains a bottleneck to commercial realization. Here, we show that the thermal stability of polymer hole-transport layers (HTLs) used in PeLEDs represents an important factor influencing the external quantum efficiency (EQE) roll-off and device lifetime. We demonstrate a reduced EQE roll-off, a higher breakdown current density of approximately 6 A cm-2, a maximum radiance of 760 W sr-1 m-2, and a longer device lifetime for PeLEDs using polymer HTLs with high glass-transition temperatures. Furthermore, for devices driven by nanosecond electrical pulses, a record high radiance of 1.23 MW sr-1 m-2 and an EQE of approximately 1.92% at 14.6 kA cm-2 are achieved. Thermally stable polymer HTLs enable stable operation of PeLEDs that can sustain more than 11.7 million electrical pulses at 1 kA cm-2 before device failure.

AB - While the performance of metal halide perovskite light-emitting diodes (PeLEDs) has rapidly improved in recent years, their stability remains a bottleneck to commercial realization. Here, we show that the thermal stability of polymer hole-transport layers (HTLs) used in PeLEDs represents an important factor influencing the external quantum efficiency (EQE) roll-off and device lifetime. We demonstrate a reduced EQE roll-off, a higher breakdown current density of approximately 6 A cm-2, a maximum radiance of 760 W sr-1 m-2, and a longer device lifetime for PeLEDs using polymer HTLs with high glass-transition temperatures. Furthermore, for devices driven by nanosecond electrical pulses, a record high radiance of 1.23 MW sr-1 m-2 and an EQE of approximately 1.92% at 14.6 kA cm-2 are achieved. Thermally stable polymer HTLs enable stable operation of PeLEDs that can sustain more than 11.7 million electrical pulses at 1 kA cm-2 before device failure.

KW - device stability

KW - EQE roll-off

KW - high power

KW - perovskite light-emitting devices

KW - pulsed operation

U2 - 10.1021/acs.nanolett.3c00148

DO - 10.1021/acs.nanolett.3c00148

M3 - Article

SN - 1530-6984

VL - 23

SP - 4785

EP - 4792

JO - Nano Letters

JF - Nano Letters

IS - 11

ER -

Thermal Properties of Polymer Hole-Transport Layers Influence the Efficiency Roll-Off and Stability of Perovskite Light-Emitting Diodes

Abstract

NLR Publication Number

Keywords

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