Frontiers of Chemical Science and Engineering
>> 2015,
Volume 9,
Issue 4
doi:
10.1007/s11705-015-1549-8
RESEARCH ARTICLE
Orderly decorated nanostructural photoelectrodes with uniform spherical TiO
Department of Research and Development, SUN Nanotechnologists Company, Tehran 13488-96394, Iran
Accepted: 2015-11-20
Available online: 2015-11-26
Next
Previous
Abstract
This study presents a novel nanostructural electrode made of 20-nm-diameter nanoparticles, which orderly decorated with 2-µm TiO particles, deposited by a new gel process. The decorated electrode (DE) is better than the non-decorated electrode (NE) in both light scattering and light harvesting, as confirmed by diffuse reflectance spectroscopy. X-ray diffraction reveals that both electrodes have a mixture of anatase and rutile phases. The dye-sensitized solar cell based on the decorated electrode shows the highest power conversion efficiency of 7.80% as a result of less recombination demonstrated by electrochemical impedance spectroscopy. From internal power conversion efficiency measurement, the external quantum efficiency of DE cell at 530 nm is 89%, which is higher than that of NE cell (77%).
京公网安备 11010502051620号
