Nanocomposites Based on Luminescent Colloidal Nanocrystals and Polymeric Ionic Liquids towards Optoelectronic Applications

被引：6

作者：

Panniello, Annamaria ^{[1
]}

Ingrosso, Chiara ^{[1
]}

Coupillaud, Paul ^{[2
,3
]}

Tamborra, Michela ^{[1
]}

Binetti, Enrico ^{[1
]}

Curri, Maria Lucia ^{[1
]}

Agostiano, Angela ^{[1
,4
]}

Taton, Daniel ^{[2
,3
]}

Striccoli, Marinella ^{[1
]}

机构：

[1] CNR, Bari Div, IPCF, Dept Chem, I-70126 Bari, Italy

[2] CNRS, Lab Chim Polymeres Organ, F-33607 Pessac, France

[3] Univ Bordeaux, Ecole Natl Super Chim Biol & Phys, Lab Chim Polymeres Organ, F-33607 Pessac, France

[4] Univ Bari Aldo Moro, Dept Chem, I-70126 Bari, Italy

来源：

MATERIALS | 2014年 / 7卷 / 01期

关键词：

colloidal nanocrystals; polymeric ionic liquids; nanocomposites; surface functionalization; time-resolved spectroscopy; POLY(IONIC LIQUID); RADICAL POLYMERIZATION; IMIDAZOLIUM; NANOPARTICLES; COMPOSITES; CHEMISTRY; CDSE; CDTE;

D O I：

10.3390/ma7010591

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Polymeric ionic liquids (PILs) are an interesting class of polyelectrolytes, merging peculiar physical-chemical features of ionic liquids with the flexibility, mechanical stability and processability typical of polymers. The combination of PILs with colloidal semiconducting nanocrystals leads to novel nanocomposite materials with high potential for batteries and solar cells. We report the synthesis and properties of a hybrid nanocomposite made of colloidal luminescent CdSe nanocrystals incorporated in a novel ex situ synthesized imidazolium-based PIL, namely, either a poly(N-vinyl-3-butylimidazolium hexafluorophosphate) or a homologous PIL functionalized with a thiol end-group exhibiting a chemical affinity with the nanocrystal surface. A capping exchange procedure has been implemented for replacing the pristine organic capping molecules of the colloidal CdSe nanocrystals with inorganic chalcogenide ions, aiming to disperse the nano-objects in the PILs, by using a common polar solvent. The as-prepared nanocomposites have been studied by TEM investigation, UV-Vis, steady-state and time resolved photoluminescence spectroscopy for elucidating the effects of the PIL functionalization on the morphological and optical properties of the nanocomposites.

引用

页码：591 / 610

页数：20

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