Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
79977 | Solar Energy Materials and Solar Cells | 2009 | 5 Pages |
Abstract
Using Raman spectroscopy in addition to electrochemical impedance spectroscopy, we have clarified the deteriorated components of dye-sensitized solar cells (DSCs) module after the longest durability test in the world under outdoor working condition for ∼2.5 years. It was confirmed that the N719 dye-adsorbed TiO2 electrode and carbon counter electrode were almost stable; therefore, the photocurrent (Jsc) was maintained during the outdoor working. The photovoltages (Voc) and the filling factors (FF) slightly decreased due to the increase of the Nernst diffusion impedance of triiodide (I3−), resulting from the change of the components in the electrolyte.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Naohiko Kato, Yasuhiko Takeda, Kazuo Higuchi, Akihiro Takeichi, Eiichi Sudo, Hiromitsu Tanaka, Tomoyoshi Motohiro, Toshiyuki Sano, Tatsuo Toyoda,