Inkjet-Printed Full-Color Matrix Quasi-Two-Dimensional Perovskite Light-Emitting Diodes

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Junjie Wang
  • Danyang Li
  • Lan Mu
  • Miaozi Li
  • Yu Luo
  • Binbin Zhang
  • Chaohuang Mai
  • Biao Guo
  • Linfeng Lan
  • Jian Wang
  • Junbiao Peng

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)41773–41781
Journal / PublicationACS Applied Materials and Interfaces
Volume13
Issue number35
Online published25 Aug 2021
Publication statusPublished - 8 Sept 2021

Abstract

Full-color matrix devices based on perovskite light-emitting diodes (PeLEDs) formed via inkjet printing are increasingly attractive due to their tunable emission, high color purity, and low cost. A key challenge for realizing PeLED matrix devices is achieving high-quality perovskite films with a favorable emission structure via inkjet printing techniques. In this work, a narrow phase distribution, high-quality quasi-two-dimensional (quasi-2D) perovskite film without a "coffee ring"was obtained via the introduction of a phenylbutylammonium cation into the perovskite and the use of a vacuum-assisted quick-drying process. Relatively efficient emissions of red, green, and blue (RGB) uniform quasi-2D perovskite films with high photoluminescence quantum yields were cast by the inkjet printing technique. The RGB monochrome perovskite matrix devices with 120 pixel-per-inch resolution exhibited electroluminescence, with maximum external quantum efficiencies of 3.5, 3.4, and 1.0% (for red, green, and blue light emissions, respectively). Furthermore, a full-color perovskite matrix device with a color gamut of 102% (NTSC 1931) was realized. To the best of our knowledge, this is the first report of a full-color perovskite matrix device formed by inkjet printing.

Research Area(s)

  • inkjet printing, matrix LED devices, phase distribution, quasi-2D perovskite, vacuum drying

Citation Format(s)

Inkjet-Printed Full-Color Matrix Quasi-Two-Dimensional Perovskite Light-Emitting Diodes. / Wang, Junjie; Li, Danyang; Mu, Lan et al.
In: ACS Applied Materials and Interfaces, Vol. 13, No. 35, 08.09.2021, p. 41773–41781.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review