MAPbBr3nanocrystals from aqueous solution for poly(methyl methacrylate)-MAPbBr3nanocrystal films with compression-resistant photoluminescence

Xiaobing Tang, Yulin Zhang, Nadeesha Lakmali Kothalawala, Xiyu Wen, Doo Young Kim, Fuqian Yang

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

In this work, we develop an environmental-friendly approach to produce organic-inorganic hybrid MAPbBr3 (MA = CH3NH3) perovskite nanocrystals (PeNCs) and PMMA-MAPbBr3 NC films with excellent compression-resistant PL characteristics. Deionized water is used as the solvent to synthesize MAPbBr3 powder instead of conventionally-used hazardous organic solvents. The MAPbBr3 PeNCs derived from the MAPbBr3 powder exhibit a high photoluminescence quantum yield (PLQY) of 93.86%. Poly(methyl methacrylate) (PMMA)-MAPbBr3 NC films made from the MAPbBr3 PeNCs retain 1/497% and 1/491% of initial PL intensity after 720 h aging in ambient environment at 50 °C and 70 °C, respectively. The PMMA-MAPbBr3 NC films also exhibit compression-resistant photoluminescent characteristics in contrast to the PMMA-CsPbBr3 NC films under a compressive stress of 1.6 MPa. The PMMA-MAPbBr3 NC film integrated with a red emissive film and a blue light emitting source achieves an LCD backlight of 1/4114% color gamut of National Television System Committee (NTSC) 1953 standard.

Original languageEnglish
Article number235605
JournalNanotechnology
Volume33
Issue number23
DOIs
StatePublished - Jun 4 2022

Bibliographical note

Publisher Copyright:
© 2022 IOP Publishing Ltd.

Keywords

  • compression-resistant backlight films
  • deionized water
  • display
  • organic-inorganic hybrid perovskite nanocrystals

ASJC Scopus subject areas

  • Bioengineering
  • General Chemistry
  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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