All-vacuum-deposited inorganic cesium lead halide perovskite light-emitting diodes

Sihan Xie, Anna Osherov, Vladimir Bulović

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

Polycrystalline CsPbBr3 thin films are deposited by vacuum co-evaporation of cesium halide and lead halide precursors, leading to uniform pinhole-free morphology and precise control over the film thickness and precursor stoichiometry. By utilizing the organic hole and electron transport layers, all-vacuum-deposited perovskite LEDs are fabricated. The resulting devices exhibit a maximum luminance of 1800 cd/m2, a 531 nm emission wavelength peak with a spectral linewidth of 21 nm, and an external quantum efficiency of 1.1%.

Original languageEnglish
Article number051113
JournalAPL Materials
Volume8
Issue number5
DOIs
StatePublished - 1 May 2020
Externally publishedYes

ASJC Scopus subject areas

  • General Materials Science
  • General Engineering

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