Perovskite white light-emitting diodes based on a molecular blend perovskite emissive layer

Che Yu Chang, Alexander N. Solodukhin, Shih Yu Liao, K. P.O. Mahesh, Ching Ling Hsu, Sergei A. Ponomarenko, Yuriy N. Luponosov*, Yu Chiang Chao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

50 Citations (Scopus)


Perovskite light-emitting diodes (LEDs) are attractive because of their high efficiency and narrow emission. However, most of the current research on perovskite LEDs with primary color emission is focused on performance enhancement. Only a few studies focused on perovskite white LEDs. Here, we realized a perovskite white light-emitting diode with a single emissive layer by mixing the emission from a sky-blue perovskite material and an orange-near infrared (NIR) organic compound. Compounds with orange-NIR emission are synthesized and the influence of the compounds on the perovskite films is investigated by absorption and photoluminescence spectroscopy, X-ray diffraction, scanning electron microscopy and confocal laser-scanning fluorescence microscopy. Perovskite white LEDs were realized with CIE chromaticity coordinates of (0.3, 0.49), which are approaching the ideal pure white emission coordinates (0.33, 0.33).

Original languageEnglish
Pages (from-to)8634-8642
Number of pages9
JournalJournal of Materials Chemistry C
Issue number28
Publication statusPublished - 2019

ASJC Scopus subject areas

  • General Chemistry
  • Materials Chemistry


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