Electrochemical synthesis of CdTe nanocrystal/polypyrrole composites for optoelectronic applications

Nikolai P. Gaponik; Dmitri V. Talapin; Andrey L. Rogach; Alexander Eychmüller

doi:10.1039/B001958P

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Nikolai P. Gaponik,^a Dmitri V. Talapin,*^ab Andrey L. Rogach^ab and Alexander Eychmüller^b

Author affiliations

* Corresponding authors

^a Institute of Physico-Chemical Problems, Belarusian State University, Minsk, Belarus
E-mail: elchem@fhp.bsu.unibel.by

^b Institute of Physical Chemistry, University of Hamburg, Hamburg, Germany

Abstract

Electrochemical polymerisation has been found to be a convenient method for the synthesis of a thin film composite of a conducting polymer (polypyrrole) and strongly luminescent CdTe semiconductor nanocrystals. Optimal conditions (relatively low anodic potential, neutral pH, aqueous solution) for the synthesis of uniform high-quality films combining the mechanical, electrical and optical properties of the polymer with the luminescence properties of the semiconductor nanocrystals have been established. It has been shown that insertion of the CdTe nanoparticles into the polypyrrole matrix leads to a significant increase in their electroluminescence quantum efficiency.

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Article information

DOI: https://doi.org/10.1039/B001958P
Article type: Paper
Submitted: 10 Mar 2000
Accepted: 06 Jun 2000
First published: 04 Aug 2000

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J. Mater. Chem., 2000,10, 2163-2166

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