| 摘要 |
<p>A method of forming a counter electrode for a dye-sensitised solar cell (DSSC) comprising: providing a conductive substrate 10; depositing a platinum group metal halide in solution onto a first side of the substrate 10; exposing the first side of the conductive substrate to near-infrared radiation at a wavelength between 700-2500nm to allow the metal from the metal halide to be deposited as a layer 30 on the substrate 10. The conductive substrate is preferably formed of an electrochemically inert material, such as glass or plastic, and a layer of conductive material 20 such as fluorine-doped tin oxide. Also disclosed is a DSSC comprising the above counter electrode 1, the DSSC further comprising: a working electrode, having a conductive substrate with a metal oxide layer provided, the metal oxide having a dye adsorbed onto the surface; and an electrolyte provided between the working and counter electrodes. The present method allows for quicker deposition of platinum-group metal layers which act as catalysing electrodes in DSSCs. Typical processes use ovens to increase the temperature, this is both time consuming and energy inefficient; the use of infrared radiation lowers the heating time and focuses the thermal energy on the substrate surface.</p> |
