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

Author(s)
Xie, Shan; Osherov-Beizerov, Anna; Bulović, Vladimir
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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%.
Date issued
2020-05
URI
https://hdl.handle.net/1721.1/130060
Department
Massachusetts Institute of Technology. Research Laboratory of Electronics
Journal
APL Materials
Publisher
AIP Publishing
Citation
Xie, Sihan et al. “All-vacuum-deposited inorganic cesium lead halide perovskite light-emitting diodes.” APL Materials, 8, 5 (May 2020): 051113 © 2020 The Author(s)
Version: Final published version
ISSN
2166-532X
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