Stabilization of metal counter electrodes for dye solar cells
Loading...
Access rights
© 2011 Elsevier BV. This is the post print version of the following article: Miettunen, Kati & Asghar, Imran & Ruan, Xiaoli & Halme, Janne & Saukkonen, Tapio & Lund, Peter. 2011. Stabilization of metal counter electrodes for dye solar cells. Journal of Electroanalytical Chemistry. Volume 653, Issue 1-2. 93-99. ISSN 1572-6657 (printed). DOI: 10.1016/j.jelechem.2010.12.022., which has been published in final form at http://www.sciencedirect.com/science/article/pii/S1572665710005370.
This post-print is published with permission from Elsevier under CC BY-NC-ND 4.0 license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
URL
Journal Title
Journal ISSN
Volume Title
School of Science |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
Date
2011
Major/Subject
Mcode
Degree programme
Language
en
Pages
93-99
Series
Journal of Electroanalytical Chemistry, Volume 653, Issue 1-2
Abstract
The purpose of this study was to identify stable metal based counter electrodes (CE) for dye solar cells (DSC). Previous studies have shown that stainless steel (StS 304) suffers from corrosion when used as a counter electrode. Therefore metals which have inherently higher corrosion resistance, such as stainless steel types 321, 316 and 316L, Inconel 600 and titanium, were investigated here. When using thermal platinization for the preparation of the catalyst layer on CE, only the titanium foil based metal based DSC remained consistently stable in the 1000 h light soaking test. The counter electrodes were also prepared with sputtering ∼20 nm thick layer of Pt which provides a highly uniform layer on the CE which acts also as a protective coating on the metal. With sputtered Pt, DSC on all studied metals expect for Inconel remained at 80–95% of the initial efficiency after light soaking test for 1000 h.Description
Keywords
dye-sensitized, aging, metal, impedance spectroscopy
Other note
Citation
Miettunen, Kati & Asghar, Imran & Ruan, Xiaoli & Halme, Janne & Saukkonen, Tapio & Lund, Peter. 2011. Stabilization of metal counter electrodes for dye solar cells. Journal of Electroanalytical Chemistry. Volume 653, Issue 1-2. 93-99. ISSN 1572-6657 (printed). DOI: 10.1016/j.jelechem.2010.12.022.