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 language | English |
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Article number | 051113 |
Journal | APL Materials |
Volume | 8 |
Issue number | 5 |
DOIs | |
State | Published - 1 May 2020 |
Externally published | Yes |
ASJC Scopus subject areas
- General Materials Science
- General Engineering