All-Solution-Processed Organic–Inorganic Hybrid Perovskite Light-Emitting Diodes under Ambient Air

Taejun Kim, Jin Hoon Kim, Jin Woo Park

Research output: Contribution to journalArticle

Abstract

Herein, all-solution-processed and ambient air-stable perovskite light-emitting diodes (PeLEDs) based on organic–inorganic hybrid perovskite nanocrystals are fabricated. Uniform surface coverage of methylammonium lead bromide (MAPbBr3) perovskite nanocrystals fabricated under ambient air conditions is achieved by blowing nitrogen (N2) gas onto the surface of the perovskite–polymer-mixed precursor solution as it is being spin-coated and thus controlling the crystallization rate of the nanocrystals. To obtain uniform morphology, the experimental conditions are optimized, namely, the spin rate and N2 gas blowing start time. Finally, a spin rate of 5000 rpm (revolutions per minute) and N2 gas blowing for 10 s at 10 s after the start of spinning are found to be the optimal conditions. PeLEDs fabricated using the optimized N2 blowing conditions provide a high maximum luminance (L) of approximately 11 610 cd m−2 and a current efficiency of approximately 4.42 cd A−1 at an L of 2328 cd m−2 accompanied by excellent operational stability. The PeLEDs are not only fabricated on rigid glass substrates but also on polymeric and elastomeric substrates, which demonstrates their potential application as flexible and wearable devices.

Original languageEnglish
Article number1900642
JournalPhysica Status Solidi (A) Applications and Materials Science
DOIs
Publication statusAccepted/In press - 2019 Jan 1

Fingerprint

blowing
Perovskite
Light emitting diodes
Blow molding
light emitting diodes
nanocrystals
Nanocrystals
air
Air
Gases
gases
luminance
metal spinning
bromides
Substrates
Crystallization
crystallization
Luminance
nitrogen
Nitrogen

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

@article{079e0002d7ce43fab08c25f62d71a43e,
title = "All-Solution-Processed Organic–Inorganic Hybrid Perovskite Light-Emitting Diodes under Ambient Air",
abstract = "Herein, all-solution-processed and ambient air-stable perovskite light-emitting diodes (PeLEDs) based on organic–inorganic hybrid perovskite nanocrystals are fabricated. Uniform surface coverage of methylammonium lead bromide (MAPbBr3) perovskite nanocrystals fabricated under ambient air conditions is achieved by blowing nitrogen (N2) gas onto the surface of the perovskite–polymer-mixed precursor solution as it is being spin-coated and thus controlling the crystallization rate of the nanocrystals. To obtain uniform morphology, the experimental conditions are optimized, namely, the spin rate and N2 gas blowing start time. Finally, a spin rate of 5000 rpm (revolutions per minute) and N2 gas blowing for 10 s at 10 s after the start of spinning are found to be the optimal conditions. PeLEDs fabricated using the optimized N2 blowing conditions provide a high maximum luminance (L) of approximately 11 610 cd m−2 and a current efficiency of approximately 4.42 cd A−1 at an L of 2328 cd m−2 accompanied by excellent operational stability. The PeLEDs are not only fabricated on rigid glass substrates but also on polymeric and elastomeric substrates, which demonstrates their potential application as flexible and wearable devices.",
author = "Taejun Kim and Kim, {Jin Hoon} and Park, {Jin Woo}",
year = "2019",
month = "1",
day = "1",
doi = "10.1002/pssa.201900642",
language = "English",
journal = "Physica Status Solidi (A) Applications and Materials Science",
issn = "1862-6300",
publisher = "Wiley-VCH Verlag",

}

TY - JOUR

T1 - All-Solution-Processed Organic–Inorganic Hybrid Perovskite Light-Emitting Diodes under Ambient Air

AU - Kim, Taejun

AU - Kim, Jin Hoon

AU - Park, Jin Woo

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Herein, all-solution-processed and ambient air-stable perovskite light-emitting diodes (PeLEDs) based on organic–inorganic hybrid perovskite nanocrystals are fabricated. Uniform surface coverage of methylammonium lead bromide (MAPbBr3) perovskite nanocrystals fabricated under ambient air conditions is achieved by blowing nitrogen (N2) gas onto the surface of the perovskite–polymer-mixed precursor solution as it is being spin-coated and thus controlling the crystallization rate of the nanocrystals. To obtain uniform morphology, the experimental conditions are optimized, namely, the spin rate and N2 gas blowing start time. Finally, a spin rate of 5000 rpm (revolutions per minute) and N2 gas blowing for 10 s at 10 s after the start of spinning are found to be the optimal conditions. PeLEDs fabricated using the optimized N2 blowing conditions provide a high maximum luminance (L) of approximately 11 610 cd m−2 and a current efficiency of approximately 4.42 cd A−1 at an L of 2328 cd m−2 accompanied by excellent operational stability. The PeLEDs are not only fabricated on rigid glass substrates but also on polymeric and elastomeric substrates, which demonstrates their potential application as flexible and wearable devices.

AB - Herein, all-solution-processed and ambient air-stable perovskite light-emitting diodes (PeLEDs) based on organic–inorganic hybrid perovskite nanocrystals are fabricated. Uniform surface coverage of methylammonium lead bromide (MAPbBr3) perovskite nanocrystals fabricated under ambient air conditions is achieved by blowing nitrogen (N2) gas onto the surface of the perovskite–polymer-mixed precursor solution as it is being spin-coated and thus controlling the crystallization rate of the nanocrystals. To obtain uniform morphology, the experimental conditions are optimized, namely, the spin rate and N2 gas blowing start time. Finally, a spin rate of 5000 rpm (revolutions per minute) and N2 gas blowing for 10 s at 10 s after the start of spinning are found to be the optimal conditions. PeLEDs fabricated using the optimized N2 blowing conditions provide a high maximum luminance (L) of approximately 11 610 cd m−2 and a current efficiency of approximately 4.42 cd A−1 at an L of 2328 cd m−2 accompanied by excellent operational stability. The PeLEDs are not only fabricated on rigid glass substrates but also on polymeric and elastomeric substrates, which demonstrates their potential application as flexible and wearable devices.

UR - http://www.scopus.com/inward/record.url?scp=85073942206&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85073942206&partnerID=8YFLogxK

U2 - 10.1002/pssa.201900642

DO - 10.1002/pssa.201900642

M3 - Article

AN - SCOPUS:85073942206

JO - Physica Status Solidi (A) Applications and Materials Science

JF - Physica Status Solidi (A) Applications and Materials Science

SN - 1862-6300

M1 - 1900642

ER -