All-vacuum-deposited inorganic cesium lead halide perovskite light-emitting diodes
| Autor: | Anna Osherov, Sihan Xie, Vladimir Bulovic |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
business.industry lcsh:Biotechnology General Engineering chemistry.chemical_element Halide lcsh:QC1-999 law.invention Laser linewidth chemistry law lcsh:TP248.13-248.65 Caesium Optoelectronics General Materials Science Quantum efficiency Thin film business lcsh:Physics Stoichiometry Perovskite (structure) Light-emitting diode |
| Zdroj: | APL Materials, Vol 8, Iss 5, Pp 051113-051113-6 (2020) |
| ISSN: | 2166-532X |
| DOI: | 10.1063/1.5144103 |
| Popis: | 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%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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