Article Title

From two-dimensional metal-organic coordination networks to near-infrared luminescent PbS nanoparticle/layered polymer composite materials

Authors

Fang Cui, State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
Junhu Zhang, State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
Tieyu Cui, Shenyang National Laboratory for Materials Science, Institute of Metal Research Chinese Academy of Sciences, Shenyang 110016, China
Sen Liang, State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
Bao Li, State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
Quan Lin, State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
Bai Yang, State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China

Keywords

PbS nanoparticles, layered material, near-infrared, γ-irradiated polymerization, in situ

Abstract

Two-dimensional (2-D) layered metal-organic coordination (lead methacrylate (LDMA)) networks have been prepared in aqueous solution under mild conditions and their structure determined by single crystal diffraction. As the ligand used in our experiments is easily polymerized, these metal-organic coordination layers are therefore employed as precursors to fabricate cross-linked polymer layered materials throughγ-irradiated polymerization. The stabilities of the samples are signifi cantly improved afterγ-irradiation. To our knowledge, this is the fi rst time that covalent bonded polymer layered structures have been fabricated without the assistance of added surfactant or template. Such layered polymer materials cannot only act as alternatives to layered inorganic materials in some caustic environments, but also allow the generation of PbS nanoparticles (NPs) without aggregation in the polymer matrix. By exposing the polymer layer to H2S gas at room temperature, uniform PbS nanoparticles with an average size of about 6 nm are generated in situ. In addition, the resulting PbS NPs exhibit near-infrared (NIR) luminescent properties, which suggests the composite materials may be useful as active optical elements at communication wavelengths from 1300 to 1550 nm.

Graphical Abstract

DOI

https://doi.org/10.1007/s12274-008-8019-2

Publisher

Tsinghua University Press

Recommended Citation

Fang Cui,Junhu Zhang,Tieyu Cui,Sen Liang,Bao Li,Quan Lin,Bai Yang, From two-dimensional metal-organic coordination networks to near-infrared luminescent PbS nanoparticle/layered polymer composite materials. NanoRes.2008, 1: 195-202