期刊
NANOTECHNOLOGY
卷 31, 期 7, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/ab52ac
关键词
fluorescence; poly(vinylidene fluoride)(PVDF); cyanoethyl cellulose (CEC); CH3NH3PbBr3; electrospinning; step collector; polarization-flexible
资金
- Beijing Natural Science Foundation [2192050]
Perovskite nanocrystal embedded polymer nanofibers with polarized emissions are interesting materials for down-shifting applications. By using a folded aluminum foil as a collector, we fabricated inch-size aligned polymer nanofiber films with embedded CH3NH3PbBr3 nanocrystals by adapting an electrospinning technique. It was found that the addition of an appropriate amount of cyanoethyl cellulose (CEC) makes the dispersion of MAPbBr(3) in the nanofibers more uniform. Using a precursor solution with MAPbBr(3) of 10% and CEC of 1 wt%, the resulting nanofiber films show strong polarized emission with quantum yields up to 51%. The emission dichroic ratio and emission polarization ratio can reach 5.21 and 0.43, respectively. These polarized emissive films can be potentially applied as down converters for liquid crystal display backlights and other polarization selective photonic devices.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据