Spray-coated nanocrystalline CsPbBr3 perovskite thin-films for large area and efficient rigid and flexible light emitting diodes

Jin Kyoung Park; Seong Yeon Kim; Jun Ho Kim; Jin Hyuck Heo; Sang Hyuk Im

doi:10.1016/j.jallcom.2022.165560

Spray-coated nanocrystalline CsPbBr₃ perovskite thin-films for large area and efficient rigid and flexible light emitting diodes

Jin Kyoung Park, Seong Yeon Kim, Jun Ho Kim, Jin Hyuck Heo, Sang Hyuk Im

Department of Chemical and Biological Engineering

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

14 Citations (Scopus)

Abstract

Large area and efficient CsPbBr₃ perovskite light emitting diodes (PeLEDs) were demonstrated by readily commercializable spray-coating method. The PeLEDs with controlled crystal grain size exhibited maximum electroluminescence peak position of ~534 nm, emission spectrum of ~18 nm of full width at half maximum, maximum luminance of 20388 cd/m², maximum current efficiency of 51.0 cd/A, and maximum external quantum efficiency of 11.19%. The large area glass substrate-based rigid PeLED and polymer substrate-based flexible PeLED were also successfully demonstrated. In addition, the PeLEDs with controlled crystal grain size could generate electric power in a daytime like solar cells, which gained power conversion efficiency of 0.43–1.03% at 1 sun condition (AM 1.5 G 100 mW/cm²).

Original language	English
Article number	165560
Journal	Journal of Alloys and Compounds
Volume	918
DOIs	https://doi.org/10.1016/j.jallcom.2022.165560
Publication status	Published - 2022 Oct 15

Bibliographical note

Funding Information:
This study was supported by the National Research Foundation of Korea ( NRF ) under the Ministry of Science, ICT & Future Planning (Basic Science Research Program (no. 2021R1A5A6002853 )) and Nano-Material Technology Development Program (no. 2017M3A7B4041696 ).

Publisher Copyright:
© 2022 Elsevier B.V.

Keywords

Flexible LED
LED
Large area
Perovskite
Spray-coating

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2022.165560

Cite this

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title = "Spray-coated nanocrystalline CsPbBr3 perovskite thin-films for large area and efficient rigid and flexible light emitting diodes",

abstract = "Large area and efficient CsPbBr3 perovskite light emitting diodes (PeLEDs) were demonstrated by readily commercializable spray-coating method. The PeLEDs with controlled crystal grain size exhibited maximum electroluminescence peak position of ~534 nm, emission spectrum of ~18 nm of full width at half maximum, maximum luminance of 20388 cd/m2, maximum current efficiency of 51.0 cd/A, and maximum external quantum efficiency of 11.19%. The large area glass substrate-based rigid PeLED and polymer substrate-based flexible PeLED were also successfully demonstrated. In addition, the PeLEDs with controlled crystal grain size could generate electric power in a daytime like solar cells, which gained power conversion efficiency of 0.43–1.03% at 1 sun condition (AM 1.5 G 100 mW/cm2).",

keywords = "Flexible LED, LED, Large area, Perovskite, Spray-coating",

author = "Park, {Jin Kyoung} and Kim, {Seong Yeon} and Kim, {Jun Ho} and Heo, {Jin Hyuck} and Im, {Sang Hyuk}",

note = "Funding Information: This study was supported by the National Research Foundation of Korea ( NRF ) under the Ministry of Science, ICT & Future Planning (Basic Science Research Program (no. 2021R1A5A6002853 )) and Nano-Material Technology Development Program (no. 2017M3A7B4041696 ). Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

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doi = "10.1016/j.jallcom.2022.165560",

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T1 - Spray-coated nanocrystalline CsPbBr3 perovskite thin-films for large area and efficient rigid and flexible light emitting diodes

AU - Park, Jin Kyoung

AU - Kim, Seong Yeon

AU - Kim, Jun Ho

AU - Heo, Jin Hyuck

AU - Im, Sang Hyuk

N1 - Funding Information: This study was supported by the National Research Foundation of Korea ( NRF ) under the Ministry of Science, ICT & Future Planning (Basic Science Research Program (no. 2021R1A5A6002853 )) and Nano-Material Technology Development Program (no. 2017M3A7B4041696 ). Publisher Copyright: © 2022 Elsevier B.V.

PY - 2022/10/15

Y1 - 2022/10/15

N2 - Large area and efficient CsPbBr3 perovskite light emitting diodes (PeLEDs) were demonstrated by readily commercializable spray-coating method. The PeLEDs with controlled crystal grain size exhibited maximum electroluminescence peak position of ~534 nm, emission spectrum of ~18 nm of full width at half maximum, maximum luminance of 20388 cd/m2, maximum current efficiency of 51.0 cd/A, and maximum external quantum efficiency of 11.19%. The large area glass substrate-based rigid PeLED and polymer substrate-based flexible PeLED were also successfully demonstrated. In addition, the PeLEDs with controlled crystal grain size could generate electric power in a daytime like solar cells, which gained power conversion efficiency of 0.43–1.03% at 1 sun condition (AM 1.5 G 100 mW/cm2).

AB - Large area and efficient CsPbBr3 perovskite light emitting diodes (PeLEDs) were demonstrated by readily commercializable spray-coating method. The PeLEDs with controlled crystal grain size exhibited maximum electroluminescence peak position of ~534 nm, emission spectrum of ~18 nm of full width at half maximum, maximum luminance of 20388 cd/m2, maximum current efficiency of 51.0 cd/A, and maximum external quantum efficiency of 11.19%. The large area glass substrate-based rigid PeLED and polymer substrate-based flexible PeLED were also successfully demonstrated. In addition, the PeLEDs with controlled crystal grain size could generate electric power in a daytime like solar cells, which gained power conversion efficiency of 0.43–1.03% at 1 sun condition (AM 1.5 G 100 mW/cm2).

KW - Flexible LED

KW - LED

KW - Large area

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KW - Spray-coating

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