Effect of anodic TiO(2) powder as additive on electron transport properties in nanocrystalline TiO(2) dye-sensitized solar cells
Journal
Applied Physics Letters
Journal Volume
91
Journal Issue
23
Date Issued
2007
Author(s)
Abstract
Highly crystalline anodic TiO2 (AO-TiO2) powder was obtained by grinding of annealed TiO2 nanotube arrays grown using anodization of Ti foil. The influence of AO-TiO2 as additive in nanocrystalline TiO2 film on electron transport properties affecting the performance of these dye-sensitized solar cell was investigated using electrochemical impedance spectroscopy and the open-circuit voltage decay technique under AM 1.5 illumination. As a result of the enhanced charge-collection and light harvesting efficiencies, an increase of above 20% in photocurrent density was observed after the addition of AO-TiO2.
SDGs
Type
journal article