Issue 15, 2021

Formation of a lead chalcogenide quantum dot-based supramolecular polymer network via pillar[5]arene-based host–guest complexation

Abstract

Due to their technological and scientific significance, materials which possess photoluminescence properties are widely applied in numerous fields. Despite recent advances in quantum dot (QD)-based self-assembled materials, QD-based fluorescent supramolecular polymers are still rare due to the fact that the current QD-based self-assembly methods cannot be used for the construction of large assemblies or in three-dimensional accessible formats. Here, we achieve a lead chalcogenide (PbS) QD-based supramolecular polymer network via host–guest complexation of pillar[5]arene. A cross-linked supramolecular polymer network spontaneously formed by host–guest complexation between pillar[5]arene cavities and pyridinium groups. Then, a PbS QD-based fluorescent supramolecular polymer network is obtained by adding Pb2+ and S2− to a solution of the supramolecular polymer. The PbS QD-based fluorescent supramolecular polymer network can be used for living cell imaging. The realization of this QD-based supramolecular polymer network is expected to provide new opportunities for fabricating QD-based functional materials.

Graphical abstract: Formation of a lead chalcogenide quantum dot-based supramolecular polymer network via pillar[5]arene-based host–guest complexation

Supplementary files

Article information

Article type
Research Article
Submitted
12 may 2021
Accepted
07 iyn 2021
First published
21 iyn 2021

Mater. Chem. Front., 2021,5, 5833-5840

Formation of a lead chalcogenide quantum dot-based supramolecular polymer network via pillar[5]arene-based host–guest complexation

B. Shi, Y. Zhang, Z. Zhang, H. Yao, W. Qu, Y. Zhang, T. Wei and Q. Lin, Mater. Chem. Front., 2021, 5, 5833 DOI: 10.1039/D1QM00699A

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