Narrow-band violet light-emitting diodes based on one-dimensional lead bromides

Teng Cheng, Yipeng Xie, Yufan Lin, Yiwei Dong, Yangjie Lan, Runan Chen, Juan Li*, Bin Bin Cui*

*Corresponding author for this work

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Abstract

Violet electroluminescence is indispensable for wide color gamut and full color displays. Exploring available, cheaper, and easier processing narrow-band violet light-emitting materials is urgent for developing violet light-emitting diodes (VLEDs). We report here the first thin film of one-dimensional (1D) lead bromide (5-MBI)PbBr3 (5-MBI = 5-methylbenzimidazole) for narrow-band VLEDs. The film was prepared by simple spin-coating method, exhibiting extremely narrow-band violet emission which peaks at 430 nm with a full width at half-maximum (FWHM) of 10 nm and good color rendering in LED devices. This work proposes that one-dimensional metal halides are promising violet light-emitting materials for developing narrow-band VLEDs.

Original languageEnglish
Article number119872
JournalJournal of Luminescence
Volume260
DOIs
Publication statusPublished - Aug 2023

Keywords

  • Low-dimensional
  • Metal halides
  • Violet LEDs

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Cheng, T., Xie, Y., Lin, Y., Dong, Y., Lan, Y., Chen, R., Li, J., & Cui, B. B. (2023). Narrow-band violet light-emitting diodes based on one-dimensional lead bromides. Journal of Luminescence, 260, Article 119872. https://doi.org/10.1016/j.jlumin.2023.119872