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research article

Synthesis of novel cyanine-fullerene dyads for photovoltaic devices

Meng, F.
•
Hua, J.
•
Chen, K.
Show more
2005
Journal of Materials Chemistry

Two novel cyanine-fullerene dyads have been synthesized by means of the Prato reaction from the corresponding cyanine-aldehyde, N-methylglycine and C60. As well as a thorough characterization using MS-TOF, 1H-NMR, 13C-NMR and elemental analysis, the optical and electrochemical properties of these two dyads were investigated. The fluorescence of the cyanine-fullerene dyads was quenched efficiently as compared to the pristine cyanine, which we have attributed to photo-induced electron transfer from the cyanine to C60. The redox potentials obtained by cyclic voltammetry provide evidence that this electron transfer is energetically favorable. Single and double layer photovoltaic devices were fabricated to evaluate the photovoltaic properties of the dyad. The energetic conversion efficiency of the double layer device exceeds 0.1% under 3.1 mW cm-2 white light irradiation. The results show that cyanine-fullerene dyads are promising materials for photovoltaic devices

  • Details
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Type
research article
DOI
10.1039/b413557c
Web of Science ID

WOS:000227139100008

Author(s)
Meng, F.
Hua, J.
Chen, K.
Tian, H.
Zuppiroli, L.  
Nüesch, F.  
Date Issued

2005

Publisher

Royal Society of Chemistry

Published in
Journal of Materials Chemistry
Volume

15

Issue

9

Start page

979

Subjects

electrochemistry

•

fullerene compounds

•

nuclear magnetic resonance

•

organic compounds

•

oxidation

•

photovoltaic effects

•

radiation quenching

•

reduction (chemical)

•

time of flight mass spectra

•

voltammetry (chemical analysis)

•

novel cyanine-fullerene dyads

•

single layer photovoltaic device

•

double layer photovoltaic device

•

Prato reaction

•

cyanine-aldehyde

•

N-methylglycine

•

MS-TOF

•

1H-NMR

•

13C-NMR

•

elemental analysis

•

electrochemistry

•

fluorescence quenching

•

pristine cyanine

•

photo-induced electron transfer

•

redox potentials

•

cyclic voltammetry

•

energetic conversion efficiency

•

white light irradiation

•

C60

Note

East China Univ. of Sci. & Technol., Shanghai, China

Copyright 2006, IEE

8786108

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

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Available on Infoscience
April 3, 2007
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/4255
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