| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7906289 | Optical Materials | 2018 | 4 Pages |
Abstract
CsPbBr3 nanocrystals have attracted great interest owing to their high fluorescence quantum efficiency, adjustable photoluminescence wavelength, and good stability. We report a device that consists of disordered gold nanorods underneath a film of CsPbBr3 nanocrystals. Two-photon pumping using femtosecond laser pulses at 800â¯nm enables amplified spontaneous emission (ASE) at about 523â¯nm. In this work, a narrow peak with linewidth of 5â¯nm is observed when the pump fluence reaches a low threshold of 0.65â¯mJ/cm2. The results show that plasmonic resonance of gold nanorods improves the emission transition rate and enables low threshold ASE.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Shaoying Liu, Xiaohui Fang, Yimeng Wang, Xinping Zhang,