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  4. Temperature Dependence of Transport Properties of Spiro-MeOTAD as a Hole Transport Material in Solid-State Dye-Sensitized Solar Cells
 
research article

Temperature Dependence of Transport Properties of Spiro-MeOTAD as a Hole Transport Material in Solid-State Dye-Sensitized Solar Cells

Dualeh, Amalie  
•
Moehl, Thomas  
•
Nazeeruddin, Mohammad Khaja  
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2013
Acs Nano

The internal transport and recombination parameters of solid-state dye-sensitized solar cells (ssDSCs) using the amorphous organic semiconductor 2,2',7,7'-tetrakis(N,N-di-p-methoxyphenylamine)-9,9'-spirobtfluorene (spiro-MeOTAD) as a hole transport material (HTM) are investigated using electrical impedance spectroscopy. Devices were fabricated using flat and nanostructured TiO2 and compared to systems using nanostructured ZrO2 to differentiate between the transport processes within the different components of the ssDSC. The effect of chemically p-doping the HIM on its transport was investigated, and its temperature dependence was examined and analyzed using the Arrhenius equation. Using this approach the activation energy of the hole hopping transport within the undoped spiro-MeOTAD film was determined to be 0.34 +/- 0.02 and 0.40 +/- 0.02 eV for the mesoporous TiO2 and ZrO2 systems, respectively.

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Type
research article
DOI
10.1021/nn4005473
Web of Science ID

WOS:000316846700046

Author(s)
Dualeh, Amalie  
Moehl, Thomas  
Nazeeruddin, Mohammad Khaja  
Graetzel, Michael  
Date Issued

2013

Publisher

American Chemical Society

Published in
Acs Nano
Volume

7

Issue

3

Start page

2292

End page

2301

Subjects

photovoltaic devices

•

dye-sensitized solar cells

•

hole transport material

•

electrical impedance spectroscopy

•

charge transport

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPI  
Available on Infoscience
May 13, 2013
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/92183
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