Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7888013 | Ceramics International | 2018 | 17 Pages |
Abstract
Perovskite light emitting diodes (PeLEDs) now emerge as a promising new optoelectronic application field for these amazing semiconductors. However, most PeLEDs contain organic components, which make them unstable in the air. For fabricating the air-stable all inorganic green PeLEDs, we have designed green PeLEDs based on the ZnO/CsPbBr3/NiO heterojunction structure. The emission layer inorganic perovskite CsPbBr3 film with small grain sizes was prepared using a two-step method. The device exhibits a typical rectification behavior with turn-on voltage of ~ 3Â V. The working mechanism of the device is discussed. The EL emission bands are narrow with small FWHM values. The continuous working air-stability was also monitored. The results reveal our PeLED can maintain a good color purity and a stable EL intensity when it works continuously in the air. Our present work suggests great potential for the development and practical commercial application of PeLEDs.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Shiwei Zhuang, Xue Ma, Daqiang Hu, Xin Dong, Baolin Zhang,