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Updated: Apr 20, 2026

Electrospinning of Photocatalytic Electrodes for Dye-sensitized Solar Cells

Electrospinning of Photocatalytic Electrodes for Dye-sensitized Solar Cells

Published on: June 28, 2017

Optically transparent FTO-free cathode for dye-sensitized solar cells.

Ladislav Kavan¹, Paul Liska, Shaik M Zakeeruddin

¹Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, Swiss Federal Institute of Technology , CH-1015 Lausanne, Switzerland.

ACS Applied Materials & Interfaces

|November 25, 2014

Summary

A new flexible cathode made from platinized tungsten wire offers an affordable and stable alternative for dye-sensitized solar cells, outperforming traditional electrodes in key electrical properties.

Keywords:

dye-sensitized solar cell electrochemical impedance spectroscopy tungsten electrode woven fabric

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Area of Science:

Materials Science
Electrochemistry
Renewable Energy

Background:

Dye-sensitized solar cells (DSSCs) are a promising photovoltaic technology.
Efficient and cost-effective counter electrodes are crucial for DSSC performance.
Current counter electrodes, like platinum on fluorine-doped tin oxide (FTO), face cost and flexibility limitations.

Purpose of the Study:

To develop and evaluate an affordable, flexible cathode for DSSCs.
To compare the performance of a novel platinized tungsten wire fabric cathode against a standard platinized FTO cathode.
To assess the stability and optical properties of the new cathode material.

Main Methods:

Fabrication of a woven fabric cathode using electrochemically platinized tungsten wire (Pt-W/PEN).
Electrochemical characterization, including serial ohmic resistance and charge-transfer resistance for triiodide reduction.
Optical transparency measurements in the visible and near-infrared (NIR) spectral regions.
Fabrication and performance testing of DSSCs utilizing the Pt-W/PEN cathode with a C101-sensitized titania photoanode.

Main Results:

The Pt-W/PEN cathode demonstrated lower serial ohmic resistance and charge-transfer resistance compared to the Pt-FTO cathode.
The fabric-based electrode exhibited comparable or superior optical transparency, especially in the NIR region.
The electrode showed good stability during electrochemical loading and open-circuit storage.
DSSCs fabricated with the Pt-W/PEN cathode achieved performance comparable to those with Pt-FTO cathodes.

Conclusions:

Electrocatalytically platinized tungsten wire fabric presents a viable, cost-effective, and flexible alternative cathode for DSSCs.
This novel cathode material enhances charge transport and maintains good optical properties.
The developed cathode offers a promising pathway for improving the practicality and efficiency of dye-sensitized solar cells.