Next Article Table of Contents

Letter

Fast Electron Transport in Metal Organic Vapor Deposition Grown Dye-sensitized ZnO Nanorod Solar Cells

Supporting Info

Elena Galoppini* and Jonathan Rochford

Chemistry Department, Rutgers University, 73 Warren Street, Newark, New Jersey 07102

Hanhong Chen, Gaurav Saraf, and Yicheng Lu

Department of Electrical and Computer Engineering, Rutgers University, Piscataway, New Jersey 08854

Anders Hagfeldt and Gerrit Boschloo*

Center of Molecular Devices, Department of Chemistry, Royal Institute of Technology, Teknikringen 30, SE 100 44 Stockholm, Sweden

J. Phys. Chem. B, 2006, 110 (33), pp 16159–16161

DOI: 10.1021/jp062865q

Publication Date (Web): August 1, 2006

To whom correspondence should be addressed. E-mail: galoppin@andromeda.rutgers.edu.

Abstract

The electron transport in dye-sensitized solar cells with a MOCVD (metal organic vapor deposition)-grown ZnO nanorod array (ZnO-N) or a mesoporous film prepared from ZnO colloids (ZnO-C) as the working electrode was compared. The electrodes were of similar thickness (2 μm) and sensitized with zinc(II) meso-tetrakis(3-carboxyphenyl)porphyrin, while the electrolyte was I^-/I₃^- in 3-methoxypropionitrile. Electron transport in the ZnO-C cells was comparable with that found for colloidal TiO₂ films (transport time 10 ms) and was light intensity dependent. Electron transport in solar cells with ZnO-N electrodes was about 2 orders of magnitude faster (30 μs). Thus, the morphology of the working ZnO electrode plays a key role for the electron transport properties.

View: Full Text HTML | Hi-Res PDF

Tools

SciFinder Links

History

Published In Issue August 24, 2006
Received May 10, 2006
Revised June 14, 2006

Recommend & Share

Related Content

Photosensitization of ZnO Nanowires with CdSe Quantum Dots for Photovoltaic DevicesNano Letters
- Photosensitization of ZnO Nanowires with CdSe Quantum Dots for Photovoltaic Devices
  Kurtis S. Leschkies, Ramachandran Divakar, Joysurya Basu, Emil Enache-Pommer, Janice E. Boercker, C. Barry Carter, Uwe R. Kortshagen, David J. Norris, and Eray S. Aydil
  Nano Letters 2007 7 (6), pp 1793–1798
  Abstract: We combine CdSe semiconductor nanocrystals (or quantum dots) and single-crystal ZnO nanowires to demonstrate a new type of quantum-dot-sensitized solar cell. An array of ZnO nanowires was grown vertically from a fluorine-doped tin oxide conducting ...
  Abstract | Full Text HTML | Hi-Res PDF
Comparison of Dye-Sensitized ZnO and TiO₂ Solar Cells: Studies of Charge Transport and Carrier LifetimeThe Journal of Physical Chemistry C
- Comparison of Dye-Sensitized ZnO and TiO₂ Solar Cells: Studies of Charge Transport and Carrier Lifetime
  María Quintana, Tomas Edvinsson, Anders Hagfeldt, and Gerrit Boschloo
  The Journal of Physical Chemistry C 2007 111 (2), pp 1035–1041
  Abstract: Nanocrystalline particles of ZnO and TiO₂ of approximately equal size (15 nm) were used to prepare mesoporous electrodes for dye-sensitized solar cells. Electron transport in the solar cells was studied using intensity-modulated photocurrent spectroscopy ...
  Abstract | Full Text HTML | Hi-Res PDF
Transient Electrical Response of Dye-Sensitized ZnO Nanorod Solar CellsThe Journal of Physical Chemistry C
- Transient Electrical Response of Dye-Sensitized ZnO Nanorod Solar Cells
  Julian Tornow and Klaus Schwarzburg
  The Journal of Physical Chemistry C 2007 111 (24), pp 8692–8698
  Abstract: A dye-sensitized solar cell was build with an electrode consisting of ZnO nanorods with a mean diameter of 80 nm instead of the commonly used nano colloidal TiO₂ substrate. The electrical response of the cell under excitation with an alternating current (...
  Abstract | Full Text HTML | Hi-Res PDF

Letter

Fast Electron Transport in Metal Organic Vapor Deposition Grown Dye-sensitized ZnO Nanorod Solar Cells