Jump to main content
Jump to site search

Issue 23, 2006
Previous Article Next Article

Hybrid organic–inorganic nanomaterials based on polythiophene dendronized nanoparticles

Author affiliations

Abstract

In this work, the synthesis, characterization, and applications of branched oligothiophene dendrons that act as electroactive surfactants for the capping of Au metal nanoparticles and CdSe quantum dots are described. Two distinct methods have been employed for synthesis: a ligand exchange process and a direct-capping synthesis approach. The coverage of the dendrons per nanocrystal, the nature of the surface coordination interactions, and energy transfer interactions were studied in detail using UV-vis absorbance, FT-IR, AFM, TEM, and photoluminescence spectroscopy. The competition/displacement in ligand metathesis is highlighted by the size of the dendron and nature of binding on semiconductor nanocrystals. In the other system using the direct capping method, the size of the Au nanoparticle is mediated by the dimensions of the ligand, i.e. alkyl chain spacer and dendron branching or size. These hybrid dendron/nanoparticle complexes are generally very soluble and stable in non-polar solvents. They exhibit energy transfer, surface plasmon resonance effects, and photoinduced charge transfer interactions between the metal/semiconductor and conjugated ligands. Adsorption on mica and graphite surfaces was observed. A one-layer photovoltaic cell was fabricated to demonstrate the potential for device applications.

Graphical abstract: Hybrid organic–inorganic nanomaterials based on polythiophene dendronized nanoparticles

Back to tab navigation

Supplementary files

Publication details

The article was received on 12 Dec 2005, accepted on 09 Feb 2006 and first published on 22 May 2006


Article type: Paper
DOI: 10.1039/B517601H
Dalton Trans., 2006, 2778-2784

  •   Request permissions

    Hybrid organic–inorganic nanomaterials based on polythiophene dendronized nanoparticles

    R. C. Advincula, Dalton Trans., 2006, 2778
    DOI: 10.1039/B517601H

Search articles by author

Spotlight

Advertisements