Blinking CsPbBr3 perovskite nanocrystals for the nanoscopic imaging of electrospun nanofibers

Blinking fluorophore perovskite nanocrystals (NCs) were employed to image the fine structure of the polystyrene (PS) electrospun fibers. The conditions of CsPbBr 3 NCs embedded and dispersed into PS were investigated and optimized. The stochastic optical reconstruction microscopy is employed to visu...

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Bibliographic Details
Published in:Nano research 2021-05, Vol.14 (5), p.1397-1404
Main Authors: Chen, Tianyu, Huang, Mengna, Ye, Zhongju, Hua, Jianhao, Lin, Shen, Wei, Lin, Xiao, Lehui
Format: Article
Language:English
Subjects:
Atomic/Molecular Structure and Spectra
Biomedicine
Biotechnology
Blinking
Chemistry and Materials Science
Condensed Matter Physics
Crystals
Diffraction
Electrospinning
Fibers
Fine structure
Fluorescence
Image reconstruction
Image resolution
Materials Science
Nanocrystals
Nanofibers
Nanotechnology
Perovskites
Polystyrene
Polystyrene resins
Research Article
Stochasticity
Ultrastructure
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Summary:Blinking fluorophore perovskite nanocrystals (NCs) were employed to image the fine structure of the polystyrene (PS) electrospun fibers. The conditions of CsPbBr 3 NCs embedded and dispersed into PS were investigated and optimized. The stochastic optical reconstruction microscopy is employed to visualize the fine structure of the resulted CsPbBr 3 @PS electrospun fibers at sub-diffraction limit. The determined resolution in the reconstructed nanoscopic image is around 25.5 nm, which is much narrower than that of conventional fluorescence image. The complex reticulation and multicompartment in bead sub-diffraction-limited structures of CsPbBr 3 @PS electrospun fibers were successfully mapped with the help of the stochastic blinking properties of CsPbBr 3 NCs. This work demonstrated the potential applications of CsPbBr 3 perovskite NCs in super-resolution fluorescence imaging to reconstruct the sub-diffraction-limited features of polymeric material.
ISSN:1998-0124
1998-0000
DOI:10.1007/s12274-020-3189-7