Incorporation of Functionalized Single-Wall Carbon Nanotubes in Dye-Sensitized TiO2 Solar Cells
- 16 September 2004
- journal article
- research article
- Published by American Chemical Society (ACS) in Langmuir
- Vol. 20 (22) , 9807-9810
- https://doi.org/10.1021/la049022f
Abstract
Effects of incorporation of acid-treated single-wall carbon nanotubes (a-SWCNs) in TiO2 film and of anchorage of dye-linked, a-SWCNs (hereafter dye-SWCNs) to the TiO2/electrolyte interface on photocurrent−voltage characteristics of dye-sensitized solar cells were studied. Compared with an unmodified cell, the modified cell with the a-SWCNs in TiO2 film showed a 25% increase in short-circuit photocurrent (Jsc). The Jsc increase is correlated with improved connectivity between the a-SWCNs and the TiO2 particles and with enhanced light scattering by TiO2 clusters formed in the presence of the a-SWCNs. In the case of anchoring dye-SWCNs to the TiO2/electrolyte interface, the open-circuit voltage (Voc) increased by as much as 0.1 V, possibly due to the basicity of the TiO2 surface from NH groups of ethylenediamine moieties of the anchored dye-SWCNs.Keywords
This publication has 26 references indexed in Scilit:
- Covalently Bonded Adducts of Deoxyribonucleic Acid (DNA) Oligonucleotides with Single-Wall Carbon Nanotubes: Synthesis and HybridizationNano Letters, 2002
- Enhanced Photocurrent of Dye-Sensitized Solar Cells by Modification of TiO2 with Carbon NanotubesChemistry Letters, 2002
- Improved Photocurrent-Voltage Characteristics of Ru(II)-Dye Sensitized Solar Cells with Polypyrrole-Anchored TiO[sub 2] FilmsJournal of the Electrochemical Society, 2002
- Carbon nanotube–metal–oxide nanocomposites: microstructure, electrical conductivity and mechanical propertiesActa Materialia, 2000
- Computer simulations of light scattering and absorption in dye-sensitized solar cellsSolar Energy Materials and Solar Cells, 1998
- Fullerene PipesScience, 1998
- Enhanced Rates of Photocatalytic Degradation of an Azo Dye Using SnO2/TiO2 Coupled Semiconductor Thin FilmsEnvironmental Science & Technology, 1995
- Photoelectrochemical behavior of thin cadmium selenide and coupled titania/cadmium selenide semiconductor filmsThe Journal of Physical Chemistry, 1993
- Conversion of light to electricity by cis-X2bis(2,2'-bipyridyl-4,4'-dicarboxylate)ruthenium(II) charge-transfer sensitizers (X = Cl-, Br-, I-, CN-, and SCN-) on nanocrystalline titanium dioxide electrodesJournal of the American Chemical Society, 1993
- A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 filmsNature, 1991